Harbor Funds Prospectus

111 South Wacker Drive, 34th Floor
Chicago, IL 60606-4302
harborcapital.com

STATEMENT OF ADDITIONAL INFORMATION – March 1, 2023

Harbor Funds (“Harbor” or the “Trust”) is an open-end management investment company (or mutual fund) registered under the Investment Company Act of 1940, as amended (the “Investment Company Act”), and includes the following series (individually or collectively referred to as a “Fund” or the “Funds”).


	Retirement Class	Institutional Class	Administrative Class	Investor Class
Harbor Capital Appreciation Fund	HNACX	HACAX	HRCAX	HCAIX
Harbor Convertible Securities Fund	HNCVX	HACSX	HRCSX	HICSX
Harbor Core Bond Fund	HCBRX	HACBX	--	--
Harbor Core Plus Fund	HBFRX	HABDX	HRBDX	--
Harbor Disruptive Innovation Fund	HNMGX	HAMGX	HRMGX	HIMGX
Harbor Diversified International All Cap Fund	HNIDX	HAIDX	HRIDX	HIIDX
Harbor Global Leaders Fund	HNGIX	HGGAX	HRGAX	HGGIX
Harbor International Fund	HNINX	HAINX	HRINX	HIINX
Harbor International Core Fund (formerly, Harbor Overseas Fund)	HAORX	HAOSX	HAOAX	HAONX
Harbor International Growth Fund	HNGFX	HAIGX	HRIGX	HIIGX
Harbor International Small Cap Fund	HNISX	HAISX	HRISX	HIISX
Harbor Large Cap Value Fund	HNLVX	HAVLX	HRLVX	HILVX
Harbor Mid Cap Fund	HMCRX	HMCLX	HMCDX	HMCNX
Harbor Mid Cap Value Fund	HNMVX	HAMVX	HRMVX	HIMVX
Harbor Small Cap Growth Fund	HNSGX	HASGX	HRSGX	HISGX
Harbor Small Cap Value Fund	HNVRX	HASCX	HSVRX	HISVX

Additional funds may be created by the Funds’ Board of Trustees (the “Board of Trustees” or the “Trustees”) from time to time. Harbor Capital Advisors, Inc. (the “Advisor”) serves as investment adviser with respect to the Funds, and may employ one or more investment subadvisers (each, a “Subadvisor”), in managing the Funds, as described in the applicable prospectus.

This Statement of Additional Information is not a prospectus, but provides additional information that should be read in conjunction with the Prospectus of the respective Fund dated March 1, 2023, as amended or supplemented from time to time. Additional information about each Fund’s investments is available at harborcapital.com or in the respective Fund’s Annual and Semi-Annual reports to shareholders. Investors can obtain free copies of the Prospectus and the Statement of Additional Information, the Annual Reports, which contain the Funds’ audited financial statements, the Semi-Annual Reports, request other information and discuss their questions about the Funds by calling 800-422-1050, by writing to Harbor Funds at 111 South Wacker Drive, 34th Floor, Chicago, IL 60606-4302 or by visiting our website at harborcapital.com. The financial statements of the Funds as of and for the period ended October 31, 2022, have been audited by Ernst & Young LLP, an independent registered public accounting firm, and are incorporated by reference in this Statement of Additional Information.

TABLE OF CONTENTS

ADDITIONAL POLICIES AND INVESTMENT TECHNIQUES	1
Investment Policies	2
Asset-Backed Securities	5
Below Investment-Grade Fixed Income Securities	5
Borrowing	7
Cash Equivalents	7
Collateralized Debt Obligations	7
Common Stocks	8
Convertible Securities	8
Cybersecurity Risks	8
Delayed Funding and Revolving Credit Facilities	9
Derivative Instruments	9
Duration	15
Event-Linked Exposure	16
Fixed Income Securities	16
Foreign Currency Transactions	16
Foreign Securities	18
Forward Commitments and When-Issued Securities	21
Illiquid Securities	22
Inflation-Indexed Bonds	22
Interfund Lending	23
Investments in Other Investment Companies	24
Liquidation of Funds	24
Loan Originations, Participations and Assignments	24
Mortgage “Dollar Roll” Transactions	25
Mortgage-Backed Securities	26
Municipal Bonds	28
Partnership Securities	29
Preferred Stocks	30
Real Estate Investment Trusts	30
Regulatory Risk and Other Market Events	30
Repurchase Agreements	31
Restricted Securities	31
Reverse Repurchase Agreements	31
Rights and Warrants	32
Securities Lending	32
Short Sales	32
Small to Mid Companies	33
Sovereign Debt Obligations	33
Special Purpose Acquisition Companies	33
Structured Products	34
Trust-Preferred Securities	36
U.S. Government Securities	36
Variable and Floating Rate Securities	37
Variable Interest Entities	37
Investment Restrictions	38
Fundamental Investment Restrictions	38
Non-Fundamental Investment Restrictions	39
Trustees and Officers	40
The AdvisOr and SubadvisOrs	49
The Portfolio Managers	54
The Distributor	72
Shareholder Services	75
Code of Ethics	76
Portfolio Holdings	77
Proxy Voting	80
Proxy Voting Guidelines	82
Portfolio Transactions	83
Net Asset Value	87
Tax Information	89
Organization and Capitalization	95
Custodian	103
Independent Registered Public Accounting Firm and Financial Statements	104
Appendix a – Proxy Voting	105

ADDITIONAL POLICIES AND INVESTMENT TECHNIQUES

Each Fund is a diversified management investment company that has its own investment objective that it pursues through separate investment policies, as described in the Prospectus and below. The following discussion elaborates on the presentation of certain of the Funds’ investment policies contained in the Prospectus.

A Fund may temporarily depart from its normal investment policies and strategies when the Fund’s Subadvisor and/or the Advisor, as applicable, believes that doing so is in the Fund’s best interest, so long as the strategy or policy employed is consistent with the Funds investment objective. For instance, a Fund may invest beyond its normal limits in derivatives or exchange traded funds that are consistent with the Fund‘s investment objective when those instruments are more favorably priced or provide needed liquidity, as might be the case if the Fund is transitioning assets from one Subadvisor to another or receives large cash flows that it cannot prudently invest immediately.

In addition, a Fund may take temporary defensive positions that are inconsistent with its normal investment policies and strategies—for instance, by allocating substantial assets to cash equivalent investments or other less volatile instruments— in response to adverse or unusual market, economic, political, or other conditions. In doing so, the Fund may succeed in avoiding losses but may otherwise fail to achieve its investment objective.

80% Requirement

Certain Funds are subject to an 80% investment policy, as set forth in its prospectus. Such a Fund need not sell non-qualifying securities that appreciated in value in order to bring its investments in compliance with the 80% requirement. However, any future investments must be made in a manner to bring the Fund’s investments in compliance with the 80% requirement. This policy may be changed by the Fund upon 60 days’ advanced notice to the shareholders.

The market value of derivatives that have economic characteristics similar to the investments included in a Fund’s 80% policy will be counted for purposes of this policy.

Investment Policies

✓ Applicable	Harbor Capital Appreciation Fund	Harbor Convertible Securities Fund	Harbor Core Bond Fund	Harbor Core Plus Fund	Harbor Disruptive Innovation Fund	Harbor Diversified International All Cap Fund
Asset-Backed Securities			✓	✓
Below Investment-Grade Fixed Income Securities		✓
Borrowing	✓	✓	✓	✓	✓	✓
Cash Equivalents	✓	✓	✓	✓	✓	✓
Collateralized Debt Obligations			✓	✓
Common Stocks	✓	✓	✓	✓	✓	✓
Convertible Securities	✓	✓	✓	✓	✓	✓
Cybersecurity Risks	✓	✓	✓	✓	✓	✓
Delayed Funding and Revolving Credit Facilities		✓	✓	✓
Derivative Instruments	✓	✓	✓	✓	✓	✓
Duration		✓	✓	✓
Event-Linked Exposure		✓
Fixed Income Securities	✓	✓	✓	✓	✓	✓
Foreign Currency Transactions	✓	✓		✓	✓	✓
Foreign Securities	✓	✓	✓	✓	✓	✓
Forward Commitments and When-Issued Securities	✓	✓	✓	✓	✓	✓
Illiquid Securities	✓	✓	✓	✓	✓	✓
Inflation-Indexed Bonds			✓	✓
Interfund Lending	✓	✓	✓	✓	✓	✓
Investments in Other Investment Companies	✓	✓	✓	✓	✓	✓
Liquidation of Funds	✓	✓	✓	✓	✓	✓
Loan Originations, Participations and Assignments		✓	✓	✓
Mortgate “Dollar Roll” Transactions			✓	✓
Mortgage-Backed Securities			✓	✓
Municipal Bonds			✓	✓
Partnership Securities	✓	✓	✓	✓	✓	✓
Preferred Stocks	✓	✓	✓	✓	✓	✓
Real Estate Investment Trusts	✓	✓	✓	✓	✓	✓
Regulatory Risk and Other Market Events	✓	✓	✓	✓	✓	✓
Repurchase Agreements	✓	✓	✓	✓	✓	✓
Restricted Securities	✓	✓	✓	✓	✓	✓
Reverse Repurchase Agreements		✓
Rights and Warrants	✓	✓	✓	✓	✓	✓
Securities Lending	✓	✓	✓	✓	✓	✓
Short Sales	✓	✓	✓	✓	✓
Small to Mid Companies	✓	✓			✓	✓
Sovereign Debt Obligation	✓	✓	✓	✓	✓	✓
Special Purpose Acquisition Companies					✓
Structured Products			✓	✓
Trust-Preferred Securities	✓	✓	✓	✓	✓	✓
U.S. Government Securities	✓	✓	✓	✓	✓	✓
Variable and Floating Rate Securities	✓	✓	✓	✓	✓	✓
Variable Interest Entities						✓

Investment Policies

✓ Applicable	Harbor Global Leaders Fund	Harbor International Fund	Harbor International Core Fund (formerly, Harbor Overseas Fund)	Harbor International Growth Fund	Harbor International Small Cap Fund	Harbor Large Cap Value Fund
Asset-Backed Securities
Below Investment-Grade Fixed Income Securities
Borrowing	✓	✓	✓	✓	✓	✓
Cash Equivalents	✓	✓	✓	✓	✓	✓
Collateralized Debt Obligations
Common Stocks	✓	✓	✓	✓	✓	✓
Convertible Securities	✓	✓	✓	✓	✓	✓
Cybersecurity Risks	✓	✓	✓	✓	✓	✓
Delayed Funding and Revolving Credit Facilities
Derivative Instruments	✓	✓	✓	✓	✓	✓
Duration
Event-Linked Exposure
Fixed Income Securities	✓	✓	✓	✓	✓	✓
Foreign Currency Transactions	✓	✓	✓	✓	✓	✓
Foreign Securities	✓	✓	✓	✓	✓	✓
Forward Commitments and When-Issued Securities	✓	✓	✓	✓	✓	✓
Illiquid Securities	✓	✓	✓	✓	✓	✓
Inflation-Indexed Bonds
Interfund Lending	✓	✓	✓	✓	✓	✓
Investments in Other Investment Companies	✓	✓	✓	✓	✓	✓
Liquidation of Funds	✓	✓	✓	✓	✓	✓
Loan Originations, Participations and Assignments
Mortgate “Dollar Roll” Transactions
Mortgage-Backed Securities
Municipal Bonds
Partnership Securities	✓	✓	✓	✓	✓	✓
Preferred Stocks	✓	✓	✓	✓	✓	✓
Real Estate Investment Trusts	✓	✓	✓	✓	✓	✓
Regulatory Risk and Other Market Events	✓	✓	✓	✓	✓	✓
Repurchase Agreements	✓	✓	✓	✓	✓	✓
Restricted Securities	✓	✓	✓	✓	✓	✓
Reverse Repurchase Agreements
Rights and Warrants	✓	✓	✓	✓	✓	✓
Securities Lending	✓	✓	✓	✓	✓	✓
Short Sales	✓		✓		✓	✓
Small to Mid Companies	✓	✓	✓	✓	✓	✓
Sovereign Debt Obligation	✓	✓	✓	✓	✓	✓
Special Purpose Acquisition Companies
Structured Products
Trust-Preferred Securities	✓	✓	✓	✓	✓	✓
U.S. Government Securities	✓	✓	✓	✓	✓	✓
Variable and Floating Rate Securities	✓	✓	✓	✓	✓	✓
Variable Interest Entities	✓	✓	✓	✓	✓

Investment Policies

✓ Applicable	Harbor Mid Cap Fund	Harbor Mid Cap Value Fund	Harbor Small Cap Growth Fund	Harbor Small Cap Value Fund
Asset-Backed Securities
Below Investment-Grade Fixed Income Securities
Borrowing	✓	✓	✓	✓
Cash Equivalents	✓	✓	✓	✓
Collateralized Debt Obligations
Common Stocks	✓	✓	✓	✓
Convertible Securities	✓	✓	✓	✓
Cybersecurity Risks	✓	✓	✓	✓
Delayed Funding and Revolving Credit Facilities
Derivative Instruments	✓	✓	✓	✓
Duration
Event-Linked Exposure
Fixed Income Securities	✓	✓	✓	✓
Foreign Currency Transactions	✓	✓	✓	✓
Foreign Securities	✓	✓	✓	✓
Forward Commitments and When-Issued Securities	✓	✓	✓	✓
Illiquid Securities	✓	✓	✓	✓
Inflation-Indexed Bonds
Interfund Lending	✓	✓	✓	✓
Investments in Other Investment Companies	✓	✓	✓	✓
Liquidation of Funds	✓	✓	✓	✓
Loan Originations, Participations and Assignments
Mortgate “Dollar Roll” Transactions
Mortgage-Backed Securities
Municipal Bonds
Partnership Securities	✓	✓	✓	✓
Preferred Stocks	✓	✓	✓	✓
Real Estate Investment Trusts	✓	✓	✓	✓
Regulatory Risk and Other Market Events	✓	✓	✓	✓
Repurchase Agreements	✓	✓	✓	✓
Restricted Securities	✓	✓	✓	✓
Reverse Repurchase Agreements
Rights and Warrants	✓	✓	✓	✓
Securities Lending	✓	✓	✓	✓
Short Sales	✓	✓	✓	✓
Small to Mid Companies	✓	✓	✓	✓
Sovereign Debt Obligation	✓	✓	✓	✓
Special Purpose Acquisition Companies
Structured Products
Trust-Preferred Securities	✓	✓	✓	✓
U.S. Government Securities	✓	✓	✓	✓
Variable and Floating Rate Securities	✓	✓	✓	✓
Variable Interest Entities

The investment policies below are applicable to each Fund as indicated in the preceding table. Unless otherwise noted, each Fund may make the types of investments, and is subject to the types of risks, described in each applicable investment policy.

Investment Policies

Asset-Backed Securities

Permitted investments include asset-backed securities and in securities that represent individual interests in pools of consumer loans and trade receivables similar in structure to mortgage-backed securities. The assets are securitized either in a pass-through structure (similar to a mortgage pass-through structure) or in a pay-through structure (similar to a collateralized mortgage obligation (“CMO”) structure). Although the collateral supporting asset-backed securities generally is of a shorter maturity than mortgage loans and historically has been less likely to experience substantial prepayments, no assurance can be given as to the actual maturity of an asset-backed security because prepayments of principal may be made at any time. Payments of principal and interest typically are supported by some form of credit enhancement, such as a letter of credit, surety bond, limited guarantee by another entity or having a priority to certain of the borrower’s other securities. The degree of credit enhancement varies, and generally applies to only a fraction of the asset-backed security’s par value until exhausted. If the credit enhancement of an asset-backed security held by a Fund has been exhausted, and if any required payments of principal and interest are not made with respect to the underlying loans, a Fund may experience losses or delays in receiving payment.

Other types of mortgage-backed and asset-backed securities may be developed in the future, and a Fund may invest in them if the relevant Fund’s Subadvisor and/or the Advisor, as applicable, determines they are consistent with the Fund’s investment objectives and policies.

Asset-backed securities entail certain risks not presented by mortgage-backed securities. Asset-backed securities do not have the benefit of the same type of security interest in the related collateral. Asset-backed securities are often subject to more rapid repayment than their stated maturity date would indicate as a result of the pass-through of prepayments of principal on the underlying loans. During periods of declining interest rates, prepayment of loans underlying asset-backed securities can be expected to accelerate. Accordingly, a Fund’s ability to maintain positions in these securities will be affected by reductions in the principal amount of such securities resulting from prepayments, and its ability to reinvest the returns of principal at comparable yields is subject to generally prevailing interest rates at that time.

In a rising interest rate environment, a declining prepayment rate will extend the average life of many mortgage-backed securities. This possibility is often referred to as extension risk. Extending the average life of a mortgage-backed security increases the risk of depreciation due to future increases in market interest rates.

Credit card receivables are generally unsecured and the debtors on such receivables are entitled to the protection of a number of state and federal consumer credit laws, many of which give such debtors the right to set-off certain amounts owed on the credit cards, thereby reducing the balance due. Automobile receivables generally are secured, but by automobiles rather than residential real property. Most issuers of automobile receivables permit the loan servicers to retain possession of the underlying obligations. If the servicer were to sell these obligations to another party, there is a risk that the purchaser would acquire an interest superior to that of the holders of the asset-backed securities. In addition, because of the large number of vehicles involved in a typical issuance and technical requirements under state laws, the trustee for the holders of the automobile receivables may not have a proper security interest in the underlying automobiles. Therefore, there is the possibility that, in some cases, recoveries on repossessed collateral may not be available to support payments on these securities.

Below Investment-Grade Fixed Income Securities

Below investment-grade fixed income securities are considered predominantly speculative by traditional investment standards. In some cases, these securities may be highly speculative and have poor prospects for reaching investment-grade standing. Below investment-grade fixed income securities and unrated securities of comparable credit quality are subject to the increased risk of an issuer’s inability to meet principal and interest obligations. These securities may be subject to greater price volatility due to such factors as corporate developments, interest rate sensitivity, negative perceptions of the high-yield markets generally and limited secondary market liquidity. Such securities are also issued by less-established corporations desiring to expand. Risks associated with acquiring the securities of such issuers generally are greater than is the case with higher rated securities because such issuers are often less creditworthy companies or are highly leveraged and generally less able than more established or less leveraged entities to make scheduled payments of principal and interest.

The market values of high-yield, fixed income securities tend to reflect individual corporate developments to a greater extent than do those of higher rated securities, which react primarily to fluctuations in the general level of interest rates. Issuers of such high-yield securities may not be able to make use of more traditional methods of financing and their ability to service debt obligations may be more adversely affected than issuers of higher rated securities by economic downturns, specific corporate developments or the issuers’ inability to meet specific projected business forecasts. These below investment-grade securities also tend to be more sensitive to economic conditions than higher-rated securities. Negative publicity about the high-yield bond market and investor perceptions regarding lower rated securities, whether or not based on the Fund’s fundamental analysis, may depress the prices for such securities.

Investment Policies

Below Investment-Grade
Fixed Income
Securities — Continued

Since investors generally perceive that there are greater risks associated with below investment-grade securities of the type in which the Fund invests, the yields and prices of such securities may tend to fluctuate more than those for higher rated securities. In the lower quality segments of the fixed income securities market, changes in perceptions of issuers’ creditworthiness tend to occur more frequently and in a more pronounced manner than do changes in higher quality segments of the fixed income securities market, resulting in greater yield and price volatility.

Another factor which causes fluctuations in the prices of fixed income securities is the supply and demand for similarly rated securities. In addition, the prices of fixed income securities fluctuate in response to the general level of interest rates. Fluctuations in the prices of portfolio securities subsequent to their acquisition will not affect cash income from such securities but will be reflected in a Fund’s net asset value.

The risk of loss from default for the holders of high-yield, fixed income securities is significantly greater than is the case for holders of other debt securities because such high-yield, fixed income securities are generally unsecured and are often subordinated to the rights of other creditors of the issuers of such securities.

The secondary market for high-yield, fixed income securities is dominated by institutional investors, including mutual fund portfolios, insurance companies and other financial institutions. Accordingly, the secondary market for such securities is not as liquid as and is more volatile than the secondary market for higher rated securities. In addition, the trading volume for high-yield, fixed income securities is generally lower than that of higher rated securities and the secondary market for high-yield, fixed income securities could contract under adverse market or economic conditions independent of any specific adverse changes in the condition of a particular issuer. These factors may have an adverse effect on a Fund’s ability to dispose of particular portfolio investments. Prices realized upon the sale of such lower rated or unrated securities, under these circumstances, may be less than the prices used in calculating a Fund’s net asset value. A less liquid secondary market may also make it more difficult for a Fund to obtain precise valuations of the high-yield securities in its portfolio.

Federal legislation could adversely affect the secondary market for high-yield securities and the financial condition of issuers of these securities. The form of any proposed legislation and the probability of such legislation being enacted is uncertain.

Below investment-grade or high-yield, fixed income securities also present risks based on payment expectations. High-yield, fixed income securities frequently contain “call” or “buy-back” features, which permit the issuer to call or repurchase the security from its holder. If an issuer exercises such a “call option” and redeems the security, a Fund may have to replace such security with a lower yielding security, resulting in a decreased return for investors. A Fund may also incur additional expenses to the extent that it is required to seek recovery upon default in the payment of principal or interest on a portfolio security.

Credit ratings issued by credit rating agencies are designed to evaluate the safety of principal and interest payments of rated securities. They do not, however, evaluate the market value risk of below investment-grade securities and, therefore, may not fully reflect the true risks of an investment. In addition, credit rating agencies may or may not make timely changes in a rating to reflect changes in the economy or in the conditions of the issuer that affect the market value of the security. Consequently, credit ratings are used only as preliminary indicators of investment quality. Investments in below investment-grade and comparable unrated obligations will be more dependent on credit analysis by each Fund’s Subadvisor and/or the Advisor, as applicable, than would be the case with investments in investment-grade debt obligations. Each Fund’s Subadvisor and/or the Advisor, as applicable, employs their own credit research and analysis, which includes a study of an issuer’s existing debt, capital structure, ability to service debt and to pay dividends, the issuer’s sensitivity to economic conditions, its operating history and the current trend of earnings. Each Fund’s Subadvisor and/or the Advisor, as applicable, monitors the investments in each Fund’s portfolio and evaluate whether to dispose of or to retain below investment-grade and comparable unrated securities whose credit ratings or credit quality may have changed. There can be no assurance that the analysis of the Fund’s Subadvisor and/or the Advisor, as applicable, will be accurate or complete. A Fund may be subject to substantial losses in the event of credit deterioration or bankruptcy of one or more issuers or reference obligors in its portfolio.

There are special tax considerations associated with investing in bonds, including high-yield bonds, structured as zero coupon or payment-in-kind securities. For example, a Fund is required to report the accrued interest on these securities as current income each year even though it may receive no cash interest until the security’s maturity or payment date. The Fund may be required to sell some of its assets to obtain cash to distribute to shareholders in order to satisfy the distribution requirements of the Internal Revenue Code of 1986, as amended (the “Code”), with respect to such accrued interest. These actions are likely to reduce the Fund’s assets and may thereby increase its expense ratio and decrease its rate of return.

Investment Policies

Borrowing

Borrowing is permitted for temporary administrative or emergency purposes and this borrowing may be unsecured. Borrowing may exaggerate the effect on any increase or decrease in the market value of the Fund’s portfolio. Money borrowed will be subject to interest costs, which may or may not be recovered by appreciation of the securities purchased. The Fund also may be required to maintain minimum average balances in connection with such borrowing or to pay a commitment or other fee to maintain a line of credit; either of these requirements would increase the cost of borrowing over the stated interest rate.

Cash Equivalents

Cash equivalents include short-term obligations issued or guaranteed as to interest and principal by the U.S. government or any agency or instrumentality thereof (including repurchase agreements collateralized by such securities). The Fund may also invest in obligations of domestic and/or foreign banks, which include certificates of deposit, bankers’ acceptances and fixed time deposits. The Fund may also invest in obligations of other banks or savings and loan associations if such obligations are insured by the Federal Deposit Insurance Corporation (“FDIC”). Certificates of deposit are negotiable certificates issued against funds deposited in a commercial bank for a definite period of time and earning a specified return. Bankers’ acceptances are negotiable drafts or bills of exchange, normally drawn by an importer or exporter to pay for specific merchandise, which are “accepted” by a bank, meaning, in effect, that the bank unconditionally agrees to pay the face value of the instrument on maturity. Fixed time deposits are bank obligations payable at a stated maturity date and bearing interest at a fixed rate. Fixed time deposits may be withdrawn on demand by the investor, but may be subject to early withdrawal penalties which vary depending upon market conditions and the remaining maturity of the obligation. There are no contractual restrictions on the right to transfer a beneficial interest in a fixed time deposit to a third party, although there is no market for such deposits.

Obligations of foreign banks involve somewhat different investment risks than those affecting obligations of U.S. banks, including the possibilities that their liquidity could be impaired because of further political and economic developments, that their obligations may be less marketable than comparable obligations of U.S. banks, that a foreign jurisdiction might impose withholding taxes on interest income payable on those obligations, that foreign deposits may be seized or nationalized, that foreign governmental restrictions such as exchange controls may be adopted which might adversely affect the payment of principal and interest on those obligations and that the selection of those obligations may be more difficult because there may be less publicly available information concerning foreign banks or the accounting, auditing, and financial reporting standards, practices and requirements applicable to foreign banks may differ from those applicable to U.S. banks. Foreign banks are not generally subject to examination by any U.S. government agency or instrumentality.

The Fund may also invest in commercial paper that at the date of investment is rated at least A-1 by S&P, P-1 by Moody’s or F-1 by Fitch Ratings (P-3 for Harbor Core Plus Fund) or, if not rated, is issued or guaranteed as to payment of principal and interest by companies that at the date of investment have an outstanding debt issue rated AA or better by S&P or equivalently rated by Moody’s or Fitch Ratings; short-term corporate obligations that at the date of investment are rated AA or better by S&P or equivalently rated by Moody’s or Fitch Ratings, and other debt instruments, including unrated instruments, determined to be of comparable high quality and liquidity.

The Fund may hold cash and invest in cash equivalents pending investment of proceeds from new sales or to meet ordinary daily cash needs.

Collateralized Debt Obligations

Collateralized debt obligations (“CDOs”) include collateralized bond obligations (“CBOs”), collateralized loan obligations (“CLOs”) and other similarly structured securities. CBOs and CLOs are types of asset-backed securities. A CBO is a security issued by a trust that is backed by a diversified pool of high risk, below investment-grade fixed income securities. A CLO is a security issued by a trust typically collateralized by a pool of loans, which may include, among others, domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment-grade or equivalent unrated loans.

For both CBOs and CLOs, the cash flows from the trust are split into two or more portions, called tranches, varying in risk and yield. The riskiest portion is the “equity” tranche, which bears the bulk of defaults from the bonds or loans in the trust and serves to protect the other, more senior tranches from default in all but the most severe circumstances. Since it is partially protected from defaults, a senior tranche from a CBO trust or CLO trust typically has higher ratings and lower yields than their underlying securities and can be rated investment-grade. Despite the protection from the equity tranche, CBO or CLO tranches can experience substantial losses due to actual defaults, increased sensitivity to defaults due to collateral default and disappearance of protecting tranches, market anticipation of defaults, and aversion to CBO or CLO securities as a class.

The risks of an investment in a CDO depend largely on the type of the collateral securities and the class of the CDO in which a Fund invests. Normally, CBOs, CLOs and other CDOs are privately offered and sold, and thus, are not registered under the securities laws. As a result, investments in CDOs may be characterized by a Fund as illiquid securities. However, an active dealer market may

Investment Policies

Collateralized Debt
Obligations — Continued

exist for CDOs allowing a CDO to qualify for transactions under Rule 144A of the 1933 Act. In addition to the normal risks associated with fixed income securities discussed elsewhere in this SAI and the Fund’s prospectuses (i.e., interest rate risk and default risk), CDOs carry additional risks including, but are not limited to, the possibility that: (i) distributions from collateral securities will not be adequate to make interest or other payments; (ii) the quality of the collateral may decline in value or default; (iii) a Fund may invest in CDOs that are subordinate to other classes; and (iv) the complex structure of the security may not be fully understood at the time of investment and may produce disputes with the issuer or unexpected investment results. These risks have recently led to actual defaults and market losses on CDOs known as “structured investment vehicles” or “SIVs.”

Common Stocks

Common stocks are shares of a corporation or other entity that entitle the holder to a pro rata share of the profits of the corporation, if any, without preference over any other shareholder or class of shareholders. In the event an issuer is liquidated or declares bankruptcy, the claims of owners of bonds and preferred stock take precedence over the claims of those who own common stock. Common stock usually carries with it the right to vote and frequently, an exclusive right to do so.

Convertible Securities

Convertible securities are bonds, preferred stocks and other securities that normally pay a fixed rate of interest or dividend and give the owner the option to convert the security into common stock. While the value of convertible securities depends in part on interest rate changes and the credit quality of the issuer, the price will also change based on the price of the underlying stock. While convertible securities generally have less potential for gain than common stock, their income provides a cushion against the stock price’s decline. They generally pay less income than non-convertible bonds.

CONTINGENT CONVERTIBLE INSTRUMENTS

Contingent convertible securities (“CoCos”) are a form of hybrid debt security that are intended to either convert into equity or have their principal written down upon the occurrence of certain “triggers.” The triggers are generally linked to regulatory capital thresholds or regulatory actions calling into question the issuing banking institution’s continued viability as a going-concern. CoCos’ unique equity conversion or principal write-down features are tailored to the issuing banking institution and its regulatory requirements. Some additional risks associated with CoCos include, but are not limited to:

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Loss absorption risk. CoCos have fully discretionary coupons. This means coupons can potentially be cancelled at the banking institution’s discretion or at the request of the relevant regulatory authority in order to help the bank absorb losses.

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Subordinated instruments. CoCos will, in the majority of circumstances, be issued in the form of subordinated debt instruments in order to provide the appropriate regulatory capital treatment prior to a conversion. Accordingly, in the event of liquidation, dissolution or winding-up of an issuer prior to a conversion having occurred, the rights and claims of the holders of the CoCos (such as a Fund) against the issuer with respect to or arising under the terms of the CoCos shall generally rank junior to the claims of all holders of unsubordinated obligations of the issuer. In addition, if the CoCos are converted into the issuer’s underlying equity securities following a trigger, each holder will be subordinated due to their conversion from being the holder of a debt instrument to being the holder of an equity instrument.

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Market value will fluctuate based on unpredictable factors. The value of CoCos is unpredictable and will be influenced by many factors including, without limitation: (i) the creditworthiness of the issuer and/or fluctuations in such issuer’s applicable capital ratios; (ii) supply and demand for the CoCos; (iii) general market conditions and available liquidity; and (iv) economic, financial and political events that affect the issuer, its particular market or the financial markets in general.

Cybersecurity Risks

As the use of technology increases, a Fund may be more susceptible to operational risks through breaches in cybersecurity. A breach in cybersecurity refers to both intentional and unintentional events that may cause a Fund to lose proprietary information, suffer data corruption, or lose operational capacity. Cyber attacks include, among other things, stealing or corrupting confidential information and other data that is maintained online or digitally for financial gain, denial-of-service attacks on websites causing operational disruption, and the unauthorized release of confidential information and other data.

Cybersecurity breaches affecting a Fund or the Advisor, each Fund’s Subadvisor(s) custodian, transfer agent, other third-party service providers, intermediaries and others may adversely impact a Fund and its shareholders. A cybersecurity breach may cause disruptions and impact the Funds’ business operations, which could potentially result in financial losses, inability to determine a Fund’s net asset value, impediments to trading, reputational damage, the inability of shareholders to transact business, violation of applicable law, regulatory penalties and/or fines, and compliance and other costs. Indirect cybersecurity breaches at third-party service providers, intermediaries, trading counterparties, governmental

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and other regulatory authorities, and exchange and other financial market operators may subject a Fund’s shareholders to the same risks associated with direct cybersecurity breaches. Further, indirect cybersecurity breaches at an issuer of securities in which a Fund invests may similarly negatively impact a Fund’s shareholders because of a decrease in the value of these securities.

The Trust has established policies and procedures designed to reduce the risks associated with cybersecurity breaches and other operational disruptions. However, there is no guarantee that such efforts will succeed, especially since the Trust does not directly control the cybersecurity systems of issuers or third-party service providers. There is a risk that cybersecurity breaches will not be detected. In addition, there are inherent limitations to these policies and procedures and certain risks may not yet be identified and new risks may emerge in the future. The Funds and their shareholders could be negatively impacted as a result of any cybersecurity breaches or operational disruptions.

Delayed Funding and Revolving Credit Facilities

Delayed funding loans and revolving credit facilities are borrowing arrangements in which the lender agrees to make loans up to a maximum amount upon demand by the borrower during a specified term. A revolving credit facility differs from a delayed funding loan in that as the borrower repays the loan, an amount equal to the repayment may be borrowed again during the term of the revolving credit facility. Delayed funding loans and revolving credit facilities usually provide for floating or variable rates of interest. These commitments may have the effect of requiring a Fund to increase its investment in a company at a time when it might not otherwise decide to do so (including at a time when the company’s financial condition makes it unlikely that such amounts will be repaid).

The Fund may invest in delayed funding loans and revolving credit facilities with credit quality comparable to that of issuers of its securities investments. Delayed funding loans and revolving credit facilities may be subject to restrictions on transfer, and only limited opportunities may exist to resell such instruments. As a result, a Fund may be unable to sell such investments at an opportune time or may have to resell them at less than fair market value. The Fund currently intend to treat delayed funding loans, and revolving credit facilities for which there is no readily available market, as illiquid for purposes of the limitation on illiquid investments. Participation interests in revolving credit facilities will be subject to the limitations discussed in “Loan Participations and Assignments.” Delayed funding loans and revolving credit facilities are considered to be debt obligations for purposes of each Fund’s investment restriction relating to the lending of funds or assets by a Fund.

Derivative Instruments

Derivative instruments are securities or contracts that provide for payments based on or “derived” from the performance of an underlying asset, index or other economic benchmark. Essentially, a derivative instrument is a financial arrangement or a contract either entered into between two parties (unlike a stock or a bond) or traded on an exchange and subject to central clearing. Transactions in derivative instruments can be, but are not necessarily, riskier than investments in conventional stocks, bonds and money market instruments.

A derivative instrument is more accurately viewed as a way of reallocating risk among different parties or substituting one type of risk for another. Every investment by the Fund, including an investment in conventional securities, reflects an implicit prediction about future changes in the value of that investment. Every Fund investment also involves a risk that the expectations of the Subadvisor and/or the Advisor, as applicable, will be wrong. Transactions in derivative instruments often enable the Fund to take investment positions that more precisely reflect the expectations of the Subadvisor and/or the Advisor, as applicable, concerning the future performance of the various investments available to the Fund. Derivative instruments can be a legitimate and often cost-effective method of accomplishing the same investment goals as could be achieved through other investments in conventional securities.

Derivative contracts include options, futures contracts and swap agreements. The principal risks associated with derivative instruments are:

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Market Risk: The risk that the instrument will decline in value or that an alternative investment would have appreciated more, but this is similar to the risk of investing in conventional securities.

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Leverage And Associated Price Volatility: Leverage causes increased volatility in the price of the derivative and magnifies the impact of adverse market changes, but this risk may be consistent with the investment objective of even a conservative fund in order to achieve an average portfolio volatility that is within the expected range for that type of fund.

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Counterparty Credit Risk: The use of an over-the-counter derivative instrument involves the risk that a loss may be sustained as a result of the failure of another party to the contract (usually referred to as a “counterparty”) to make required payments or otherwise comply with the contract’s terms. For example, in an option contract, this involves the risk to the option buyer that the writer will not buy or sell the underlying asset as agreed. In general, counterparty risk can be reduced by having an organization with extremely good credit act as an intermediary between

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the two parties. Currently, some derivatives such as certain interest rate swaps and certain credit default index swaps are subject to central clearing. Central clearing is expected to reduce counterparty credit risk, but central clearing does not make derivatives risk-free.

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Liquidity And Valuation Risk: Many derivative instruments are traded in institutional markets rather than on an exchange. Nevertheless, many derivative instruments are actively traded and can be priced generally with as much accuracy as conventional securities. Derivative instruments that are custom-designed to meet the specialized investment needs of a relatively narrow group of institutional investors, may be less liquid and more difficult to value. Derivatives also can create the risk that a Fund will need to make ongoing margin and settlement payments required under the transaction.

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Correlation Risk: There may be imperfect correlation between the price of the derivative and the underlying asset. For example, there may be price disparities between the trading markets for the derivative contract and the underlying asset.

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Operational Risk: The risk related to potential operational issues, including documentation issues, settlement issues, systems failures, inadequate controls, and human error.

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Legal Risk: The risk that there is insufficient documentation, insufficient capacity or authority of the counterparty, or legality or enforceability of a contract.

Rule 18f-4 prescribes parameters for the use of derivatives, reverse repurchase agreements and certain other transactions by registered investment companies. Rule 18f-4 requires the Fund to trade derivatives and other transactions that create future payment or delivery obligations (except reverse repurchase agreements and similar financing transactions) subject to value-at-risk (“VaR”) leverage limits and derivatives risk management program and reporting requirements. Generally, these requirements apply unless the Fund satisfies a “limited derivatives users” exception. When the Fund trades reverse repurchase agreements or similar financing transactions, including certain tender option bonds, it needs to aggregate the amount of indebtedness associated with the reverse repurchase agreements or similar financing transactions with the aggregate amount of any other senior securities representing indebtedness when calculating the Fund’s asset coverage ratio or treat all such transactions as derivatives transactions. Reverse repurchase agreements or similar financing transactions aggregated with other indebtedness do not need to be included in the calculation of whether the Fund satisfies the limited derivatives users exception, but for portfolios subject to the VaR testing requirement, reverse repurchase agreements and similar financing transactions must be included for purposes of such testing whether treated as derivatives transactions or not. The SEC also provided guidance in connection with Rule 18f-4 regarding the use of securities lending collateral that may limit the Fund’s securities lending activities. In addition, under Rule 18f-4, the Fund is permitted to invest in a security on a when-issued or forward-settling basis, or with a non-standard settlement cycle, and the transaction will be deemed not to involve a senior security (as defined under Section 18(g) of the 1940 Act), provided that, (i) the Fund intends to physically settle the transaction and (ii) the transaction will settle within 35 days of its trade date (the “Delayed-Settlement Securities Provision”). The Fund may otherwise engage in when-issued, forward-settling and non-standard settlement cycle securities transactions that do not meet the conditions of the Delayed-Settlement Securities Provision so long as the Fund treats any such transaction as a “derivatives transaction” for purposes of compliance with Rule 18f-4. Furthermore, the Fund is permitted to enter into an unfunded commitment agreement if the Fund reasonably believes, at the time it enters into such agreement, that it will have sufficient cash and cash equivalents to meet its obligations with respect to all such agreements as they come due.

These requirements may limit the ability of the Fund to use derivatives, reverse repurchase agreements and similar financing transactions, when-issued, delayed delivery and forward commitment transactions, and unfunded commitment agreements as part of its investment strategies. These requirements may increase the cost of the Fund’s investments and cost of doing business, which could adversely affect investors.

OPTIONS TRANSACTIONS, FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS

Options Transactions. Harbor Large Cap Value Fund, Harbor Core Bond Fund and Harbor Core Plus Fund are not authorized to engage in options transactions on currency. Harbor International Fund and Harbor International Growth Fund are not authorized to engage in options transactions on currencies for speculative purposes.The Fund may purchase and write (sell) call and put options on any securities in which it may invest, on any securities index based on securities in which it may invest or on any currency in which Fund investments may be denominated. These options may be

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listed on national domestic securities exchanges or foreign securities exchanges or traded in the over-the-counter market. Each Fund may write covered put and call options and purchase put and call options to enhance total return, as a substitute for the purchase or sale of securities or currency, or to protect against declines in the value of portfolio securities and against increases in the cost of securities to be acquired.

Writing Options. A call option on securities or currency written by the Fund obligates the Fund to sell specified securities or currency to the holder of the option at a specified price if the option is exercised at any time before the expiration date. A put option on securities or currency written by the Fund obligates the Fund to purchase specified securities or currency from the option holder at a specified price if the option is exercised at any time before the expiration date. Options on securities indices are similar to options on securities, except that the exercise of securities index options requires cash settlement payments and does not involve the actual purchase or sale of securities. In addition, securities index options are designed to reflect price fluctuations in a group of securities or segment of the securities market rather than price fluctuations in a single security. Writing covered call options may deprive the Fund of the opportunity to profit from an increase in the market price of the securities or foreign currency assets in its portfolio. Writing covered put options may deprive the Fund of the opportunity to profit from a decrease in the market price of the securities or foreign currency assets to be acquired for its portfolio.

The Fund may terminate its obligations under an exchange traded call or put option by purchasing an option identical to the one it has written. Obligations under over-the-counter options may be terminated only by entering into an offsetting transaction with the counterparty to such option. Such purchases are referred to as “closing purchase transactions.”

Purchasing Options. The Fund would normally purchase call options in anticipation of an increase, or put options in anticipation of a decrease (“protective puts”), in the market value of securities or currencies of the type in which it may invest. The Fund may also sell call and put options to close out its purchased options.

The purchase of a call option would entitle the Fund, in return for the premium paid, to purchase specified securities or currency at a specified price during the option period. The Fund would ordinarily realize a gain on the purchase of a call option if, during the option period, the value of such securities or currency exceeded the sum of the exercise price, the premium paid and transaction costs; otherwise, the Fund would realize either no gain or a loss on the purchase of the call option.

The purchase of a put option would entitle the Fund, in exchange for the premium paid, to sell specified securities or currency at a specified price during the option period. The purchase of protective puts is designed to offset or hedge against a decline in the market value of the Fund’s portfolio securities or the currencies in which they are denominated. Put options may also be purchased by the Fund for the purpose of affirmatively benefiting from a decline in the price of securities or currencies that it does not own. The Fund would ordinarily realize a gain if, during the option period, the value of the underlying securities or currency decreased below the exercise price sufficiently to cover the premium and transaction costs; otherwise, the Fund would realize either no gain or a loss on the purchase of the put option. Gains and losses on the purchase of put options may be offset by countervailing changes in the value of the Fund’s portfolio securities.

Options transactions will be subject to limitations established by each of the exchanges, boards of trade or other trading facilities on which such options are traded. These limitations govern the maximum number of options in each class which may be written or purchased by a single investor or group of investors acting in concert, regardless of whether the options are written or purchased on the same or different exchanges, boards of trade or other trading facilities or are held or written in one or more accounts or through one or more brokers. Thus, the number of options that the Fund may write or purchase may be affected by options written or purchased by other investment advisory clients of the Subadvisor and/or the Advisor, as applicable,. An exchange, board of trade or other trading facility may order the liquidation of positions found to be in excess of these limits, and it may impose certain other sanctions. Commodity exchanges may also establish daily limits on the amount that the price of a futures contract or related option can vary from the previous day’s settlement price. Once the daily limit is reached, no trades may be made that day at a price beyond the limit. This may prevent the Fund from closing out positions and limiting its losses. Position limits adopted by the CFTC may limit the Funds’ ability to obtain indirect exposure to commodities through commodity futures contracts and related options or may increase the cost of such exposure.

Futures Contracts and Options on Futures Contracts. Harbor Large Cap Value Fund, Harbor Core Bond Fund and Harbor Core Plus Fund are not authorized to enter into currency futures contracts and options on such contracts. Harbor International Fund and Harbor International Growth Fund are not authorized to enter into futures contracts on currencies or engage in options transactions with respect to futures contracts for speculative purposes. Otherwise, to seek to increase total return or hedge against changes in interest rates, securities prices or currency exchange rates, the Fund may

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purchase and sell various kinds of futures contracts, and purchase and write call and put options on these futures contracts. The Fund may also enter into closing purchase and sale transactions with respect to any of these contracts and options. The futures contracts may be based on various securities (such as U.S. government securities), securities indices, foreign currencies, commodities and commodity indices and any other financial instruments and indices. All futures contracts entered into by the Fund are traded on U.S. or foreign exchanges or boards of trade that are licensed, regulated or approved by the Commodity Futures Trading Commission (“CFTC”).

A futures contract may generally be described as an agreement between two parties to buy and sell particular financial instruments, currencies, commodities or indices for an agreed price for a designated period (or to deliver the final cash settlement price, in the case of a contract relating to an index or otherwise not calling for physical delivery at the end of trading in the contract). A futures contract on an index is an agreement in which two parties agree to take or make delivery of an amount of cash equal to the difference between the value of the index at the close of the last trading day of the contract and the price at which the index contract was originally written. Although the value of an index might be a function of the value of certain specified securities, no physical delivery of these securities is made. A commodity futures contract is an agreement between two parties, in which one party agrees to buy a commodity, such as an energy, agricultural or metal commodity from the other party at a later date at a price and quantity agreed-upon when the contract is made.

Positions taken in the futures markets are not normally held to maturity but are instead liquidated through offsetting transactions (same exchange, underlying security or index, and delivery months) that may result in a profit or a loss. While futures contracts on securities, currency or commodities will usually be liquidated in this manner, the Fund may instead make, or take, delivery of the underlying securities, currency or commodities whenever it appears economically advantageous to do so. A clearing corporation associated with the exchange on which futures contracts are traded guarantees that, if still open, the sale or purchase will be performed on the settlement date. The Fund may suffer losses if it is unable to close out its position because of an illiquid secondary market and there is no assurance that a portfolio manager will be able to close out its position when the Subadvisor and/or the Advisor, as applicable, considers it appropriate or desirable to do so. In the event of adverse price movements, the Fund may be required to continue making daily cash payments to maintain its required margin. If the Fund has insufficient cash, it may have to sell portfolio securities to meet daily margin requirements at a time when the Subadvisor and/or the Advisor, as applicable, would not otherwise elect to do so. In addition, the Fund may be required to deliver or take delivery of instruments underlying futures contracts it holds.

Options On Futures Contracts. Except as noted above, the Fund may purchase and write options on futures for the same purposes as its transactions in futures contracts. The purchase of put and call options on futures contracts will give the Fund the right (but not the obligation) for a specified price to sell or to purchase, respectively, the underlying futures contract at any time during the option period. As the purchaser of an option on a futures contract, the Fund obtains the benefit of the futures position if prices move in a favorable direction but limits its risk of loss in the event of an unfavorable price movement to the loss of the premium and transaction costs.

Risks Associated With Options Transactions, Futures Contracts and Options on Futures Contracts. The writing and purchase of futures contracts and options on futures is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The successful use of futures contracts and options on futures depends in part on the Subadvisor and/or the Advisor, as applicable,’s ability to predict future price fluctuations and, for hedging transactions, the degree of correlation between the futures contracts or options and the relevant securities or currency or other markets.

Transactions in futures contracts and options on futures involve brokerage costs and require margin deposits.

While transactions in futures contracts and options on futures may reduce certain risks, these transactions themselves entail certain other risks. For example, unanticipated changes in interest rates, securities prices or currency exchange rates, among other things, may result in a poorer overall performance for the Fund than if it had not entered into any futures contracts or options transactions.

Perfect correlation between the Fund’s futures positions and portfolio positions may be impossible to achieve. In the event of an imperfect correlation between a futures position and the portfolio position that is intended to be protected, the desired protection may not be obtained and the Fund may be exposed to risk of loss. In addition, it is not possible to hedge fully or protect against currency fluctuations affecting the value of securities denominated in foreign currencies because the value of such securities is likely to fluctuate as a result of independent factors not related to currency fluctuations.

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There is no assurance that a liquid secondary market on a domestic or foreign options exchange will exist for any particular exchange-traded futures contract or option on a futures contract or at any particular time. If the Fund is unable to effect a closing purchase transaction with respect to covered options it has written, the Fund will not be able to sell the underlying securities or currencies until the options expire or are exercised. Similarly, if the Fund is unable to effect a closing sale transaction with respect to options it has purchased, it would have to exercise the options in order to realize any profit and will incur transaction costs upon the purchase or sale of underlying securities or currencies. The Fund’s ability to terminate over-the-counter options is more limited than with exchange-traded options and may involve the risk that broker-dealers participating in such transactions will not fulfill their obligations. Some futures contracts or options on futures may become illiquid under adverse market conditions. In addition, during periods of market volatility, a commodity exchange may suspend or limit trading in a futures contract or related option, which may make the instrument temporarily illiquid and difficult to price.

The CFTC and various exchanges have rules limiting the maximum net long or short positions which any person or group may own, hold or control in any given futures contract or option on such futures contract. The Advisor and/or Subadvisor, as applicable, will need to consider whether the exposure created under these contracts might exceed the applicable limits in managing the Funds, and the limits may constrain the ability of the Fund to use such contracts.

SWAPS, CAPS, FLOORS AND COLLARS

Harbor Convertible Securities Fund, Harbor Core Bond Fund and Harbor Core Plus Fund may enter into swaps, caps, floors, and collars for hedging purposes or to seek to increase total return. For purposes of other investment policies and restrictions, the Fund may value derivative instruments at market value, notional value or full exposure value (i.e., the sum of the notional amount for the contract plus the market value). For example, the Fund may value credit default swaps at full exposure value for purposes of the Fund’s credit quality guidelines because such value reflects the Fund’s actual economic exposure during the term of the credit default swap agreement. In this context, both the notional amount and the market value may be positive or negative depending on whether the Fund is selling or buying protection through the credit default swap. The manner in which certain securities or other instruments are valued by the Funds for purposes of applying investment policies and restrictions may differ from the manner in which those investments are valued by other types of investors.

Most types of over-the-counter swap agreements entered into by the Funds will calculate the obligations of the parties to the agreement on a “net basis.” Consequently, the Fund’s current obligations (or rights) under an over-the-counter swap agreement will generally be equal only to the net amount to be paid or received under the agreement based on the relative values of the positions held by each party to the agreement (the “net amount”). Certain types of swaps are exchange-traded and subject to clearing. Additionally, applicable regulators have adopted rules imposing certain margin requirements, including minimums, on OTC swaps, which may result in the Fund and its counterparties posting higher margin amounts for OTC swaps.

The Fund may from time to time combine swaps with options. Interest rate swaps involve the exchange of respective commitments to pay or receive interest, such as an exchange of fixed rate payments for floating rate payments. Mortgage swaps are similar to interest rate swaps in that they represent commitments to pay and receive interest. The notional principal amount, however, is tied to a reference pool or pools of mortgages. Currency swaps involve the exchange of their respective rights to make or receive payments in specified currencies. The purchase of an interest rate cap entitles the purchaser, to the extent that a specified index exceeds a predetermined interest rate, to receive payment of interest on a notional principal amount from the party selling such interest rate cap. The purchase of an interest rate floor entitles the purchaser, to the extent that a specified index falls below a predetermined interest rate, to receive payments of interest on a notional principal amount from the party selling the interest rate floor.

Interest rate and mortgage swaps do not involve the delivery of securities, other underlying assets or principal. Accordingly, the risk of loss with respect to interest rate and mortgage swaps is limited to the net amount of interest payments that the Fund is contractually obligated to make. In contrast, currency swaps usually involve the delivery of a gross payment stream in one designated currency in exchange for the gross payment stream in another designated currency. Therefore, the entire payment stream under a currency swap is subject to the risk that the other party to the swap will default on its contractual delivery obligations.

Each Fund may enter into swap transactions for the purpose of achieving the approximate economic equivalent of a purchase or sale of foreign equity securities (to the extent the investment policies for such fund otherwise permits it to purchase foreign equity securities) when the Fund is not able to purchase or sell foreign equity securities directly because of administrative or other similar restrictions, such as the need to establish an account with a local sub-custodian prior to purchase or sale, applicable to U.S. mutual funds in that local market.

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Each Fund may invest in loan originations, participations or assignments; mortgage- and asset-backed securities; options, futures contracts and options on futures contracts; foreign currency transactions; or other derivative instruments, to the extent permitted in the Fund’s prospectus or this Statement of Additional Information, notwithstanding that such securities and/or instruments may be considered swaps under the Dodd-Frank Wall Street Reform and Consumer Protection Act.

Credit Default Swaps. Harbor Convertible Securities Fund, Harbor Core Bond Fund and Harbor Core Plus Fund may enter into credit default swap agreements. The “buyer” in a credit default contract is obligated to pay the “seller” a periodic stream of payments over the term of the contract provided that no event of default on an underlying reference obligation has occurred. If an event of default occurs, the seller must pay the buyer the full notional value, or “par value,” of the reference obligation in exchange for the reference obligation or the net cash-settlement amount. The Fund may be either the buyer or seller in a credit default swap transaction. If the Fund is a buyer and no event of default occurs, the Fund will lose its investment and recover nothing. However, if an event of default occurs, the Fund (if the buyer) will receive the full notional value of the reference obligation that may have little or no value.

OTHER RISKS ASSOCIATED WITH DERIVATIVES

Risks Associated with Commodity Derivatives. There are several additional risks associated with transactions in commodity futures contracts and other commodity derivatives.

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Storage Risk. Unlike the financial derivatives markets, in certain commodity derivatives markets there are costs of physical storage associated with purchasing the underlying commodity. The price of the commodity derivative will reflect the storage costs of purchasing the physical commodity, including the time value of money invested in the physical commodity. To the extent that the storage costs for an underlying commodity change while the Fund is invested in a derivative on that commodity, the value of the derivative may change proportionately.

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Reinvestment Risk. In the commodity futures markets, producers of the underlying commodity may decide to hedge the price risk of selling the commodity by selling futures contracts today to lock in the price of the commodity at delivery tomorrow. In order to induce speculators to purchase the other side of the same futures contract, the commodity producer generally must sell the futures contract at a lower price than the expected future spot price. Conversely, if most hedgers in the futures market are purchasing futures contracts to hedge against a rise in prices, then speculators will only sell the other side of the futures contract at a higher futures price than the expected future spot price of the commodity. The changing nature of the hedgers and speculators in the commodity markets will influence whether futures prices are above or below the expected future spot price, which can have significant implications for the Fund. If the nature of hedgers and speculators in futures markets has shifted when it is time for the Fund to reinvest the proceeds of a maturing contract in a new futures contract, the Fund might reinvest at higher or lower futures prices, or choose to pursue other investments.

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Other Economic Factors. The commodities that underlie commodity derivatives may be subject to additional economic and non-economic variables, such as drought, floods, weather, livestock disease, embargoes, tariffs, and international economic, political and regulatory developments. These factors may have a larger impact on commodity prices and commodity-linked instruments than on traditional securities. Certain commodities are also subject to limited pricing flexibility because of supply and demand factors. Others are subject to broad price fluctuations as a result of the volatility of the prices for certain raw materials and the instability of supplies of other materials. These additional variables may create additional investment risks which subject the Fund’s investments to greater volatility than investments in traditional securities.

Hedging And Other Strategies. The Fund will engage in futures and related options and other derivatives transactions either for bona fide hedging purposes or to seek to increase total return. Hedging is an attempt to establish with more certainty than would otherwise be possible the effective price or rate of return on portfolio securities or securities that the Fund proposes to acquire or the exchange rate of currencies in which portfolio securities are quoted or denominated. When interest rates are rising or securities prices are falling, the Fund can seek to offset a decline in the value of its current portfolio securities through the sale of futures contracts or other derivatives. When interest rates are falling or securities prices are rising, the Fund, through the purchase of futures contracts or other derivatives, can attempt to secure better rates or prices than might later be available in the market when it effects anticipated purchases. The Fund may seek to offset anticipated changes in the value of a currency in which its portfolio securities, or securities that it intends to purchase, are quoted or denominated by purchasing and selling futures contracts on such currencies or other currency derivatives.

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The Fund may, for example, take a “short” position in the futures market by selling futures contracts in an attempt to hedge against an anticipated rise in interest rates or a decline in market prices or foreign currency rates that would adversely affect the dollar value of the Fund’s portfolio securities. Such futures contracts may include contracts for the future delivery of securities held by the Fund or securities with characteristics similar to those of the Fund’s portfolio securities. Similarly, the Fund may sell futures contracts on any currencies in which its portfolio securities are quoted or denominated or in one currency to hedge against fluctuations in the value of securities denominated in a different currency if, among other reasons, there is an established historical pattern of correlation between the two currencies.

When a short hedging position is successful, any depreciation in the value of portfolio securities will be substantially offset by appreciation in the value of the derivatives position. On the other hand, any unanticipated appreciation in the value of the Fund’s portfolio securities would be substantially offset by a decline in the value of the derivatives position.

On other occasions, the Fund may take a “long” position by purchasing derivatives. This would be done, for example, when the Fund anticipates the subsequent purchase of particular securities when it has the necessary cash, but expects the prices or currency exchange rates then available in the applicable market to be less favorable than prices that are currently available. The Fund may also purchase derivatives as a substitute for transactions in securities, commodities or foreign currency, to alter the investment characteristics of or currency exposure associated with portfolio securities or to gain or increase its exposure to a particular securities or commodities market or currency.

Commodity Pool Operator Status. The Advisor is registered as a “commodity pool operator” under the Commodity Exchange Act, as amended (“CEA”) and is a member of the National Futures Association. However, the Advisor with respect to the Funds, has filed a notice of eligibility with the National Futures Association to claim an exclusion from the definition of the term CPO under the CEA, and, therefore, the Advisor is not subject to registration or regulation as a CPO under the CEA and the rules thereunder with respect to the Funds. Because the Advisor intends to operate the Funds in a manner that would permit each to continue to remain eligible for the exclusion, each of the Funds will be limited in its ability to use certain financial instruments regulated under the CEA, including futures contracts and options on futures contracts, which may adversely impact a Fund’s return. In the event the Advisor becomes unable to rely on the exclusion and operates the Fund subject to CFTC regulation, the Fund may incur additional expenses.

Duration

Duration is a measure of average maturity that was developed to incorporate a bond’s yield, coupons, final maturity and call features into one measure. Duration can be one of the characteristics used in security selection for a fixed income fund, except that the fixed income Funds do not focus on securities with a particular duration.

Most debt obligations provide interest (“coupon”) payments in addition to a final (“par”) payment at maturity. Some obligations also feature call provisions. Depending on the relative magnitude of these payments, debt obligations may respond differently to changes in the level and structure of interest rates. Traditionally, a debt security’s “term-to-maturity” has been used as a proxy for the sensitivity of the security’s price to changes in interest rates (which is the “interest rate risk” or “volatility” of the security). However, “term-to-maturity” measures only the time until a debt security provides its final payment and doesn’t take into account the pattern of the security’s payments prior to maturity. Duration is a measure of the average life of a fixed income security on a present value basis. Duration is computed by calculating the length of the time intervals between the present time and the time that the interest and principal payments are scheduled (or in the case of a callable bond, expected to be received), and weighing them by the present values of the cash to be received at each future point in time. For any fixed income security with interest payments occurring prior to the payment of principal, duration is always less than maturity. In general, the lower the stated or coupon rate of interest of a fixed income security, the longer the duration of the security. Conversely, the higher the stated or coupon rate of interest of a fixed income security, the shorter the duration of the security.

Generally speaking, if interest rates move up by 100 basis points, the value of a fixed income security with a five-year duration will decline by five points. If the fixed income security’s duration was three years, it would decline by three points; two years — two points; and so on. To the extent a Fund is invested in fixed income securities, the value of the Fund’s portfolio will decrease in a similar manner given the conditions illustrated above.

Investment Policies

Duration — Continued

Futures, options and options on futures have durations that, in general, are closely related to the duration of the securities that underlie them. Holding long futures or call option positions will lengthen the portfolio duration by approximately the same amount that holding an equivalent amount of the underlying securities would. Short futures or put option positions have durations roughly equal to the negative duration of the securities that underlie those positions, and have the effect of reducing portfolio duration by approximately the same amount that selling an equivalent amount of the underlying securities would.

Event-Linked Exposure

Event-linked exposure may be obtained by investing in “event-linked bonds” or “event-linked swaps,” or implement “event-linked strategies.” Event-linked exposure results in gains that typically are contingent on the nonoccurrence of a specific “trigger” event, such as a hurricane, earthquake, or other physical or weather-related phenomena. Some event-linked bonds are commonly referred to as “catastrophe bonds.” They may be issued by government agencies, insurance companies, reinsurers, special purpose corporations or other on-shore or off-shore entities (such special purpose entities are created to accomplish a narrow and well-defined objective, such as the issuance of a note in connection with a reinsurance transaction). If a trigger event causes losses exceeding a specific amount in the geographic region and time period specified in a bond, a Fund investing in the bond may lose all or a portion of its entire principal invested in the bond. If no trigger event occurs, the Fund will recover its principal plus interest. For some event-linked bonds, the trigger event or losses may be based on company-wide losses, index-portfolio losses, industry indices, or readings of scientific instruments rather than specified actual losses. Often the event-linked bonds provide for extensions of maturity that are mandatory or optional at the discretion of the issuer in order to process and audit loss claims in those cases where a trigger event has, or possibly has, occurred. An extension of maturity may increase volatility. In addition to the specified trigger events, event-linked bonds may also expose the Fund to certain unanticipated risks including, but not limited to, issuer risk, credit risk, counterparty risk, adverse regulatory or jurisdictional interpretations, and adverse tax consequences.

Event-linked bonds are a relatively new type of financial instrument. As such, there is no significant trading history of these securities, and there can be no assurance that a liquid market in these instruments will develop. Lack of a liquid market may impose the risk of higher transaction costs and the possibility that a Fund may be forced to liquidate positions when it would not be advantageous to do so. Event-linked bonds are typically rated, and a Fund will only invest in catastrophe bonds that meet the credit quality requirements for the Fund.

Fixed Income Securities

Corporate and foreign governmental debt securities are subject to the risk of the issuer’s inability to meet principal and interest payments on the obligations (credit risk) and may also be subject to price volatility due to such factors as interest rate sensitivity, market perception of the creditworthiness of the issuer and general market liquidity (market risk). Except to the extent that values are independently affected by currency exchange rate fluctuations, when interest rates decline, the value of fixed income securities can generally be expected to rise. Conversely, when interest rates rise, the value of fixed income securities can be expected to decline. The Fund’s Subadvisor and/or the Advisor, as applicable, will consider both credit risk and market risk in making investment decisions for the Fund.

Foreign Currency Transactions

The value of investments in securities denominated in foreign currencies and the value of dividends and interest earned may be significantly affected by changes in currency exchange rates. Some foreign currency values may be volatile, and there is the possibility of governmental controls on currency exchange or governmental intervention in currency markets, which could adversely affect the Fund. Foreign currency exchange transactions will be conducted either on a spot (i.e., cash) basis at the spot rate prevailing in the foreign currency exchange market or through entering into forward contracts to purchase or sell foreign currencies. Currency positions are not considered to be an investment in a foreign government for industry concentration purposes.

Forward foreign currency exchange contracts may be used to protect against uncertainty in the level of future foreign currency exchange rates. A forward foreign currency exchange contract involves an obligation to purchase or sell a specific currency at a future date, which may be any fixed number of days (usually less than one year) from the date of the contract agreed upon by the parties, at a price set at the time of the contract. These contracts are traded in the interbank market conducted directly between traders (usually large commercial banks) and their customers. A forward contract generally has no deposit requirement, and commissions are not typically charged for trades. Although foreign exchange dealers do not generally charge a fee for conversion, they do realize a profit based on the difference (the spread) between the price at which they are buying and selling various currencies.

Harbor International Small Cap Fund, Harbor Core Plus Fund and Harbor Convertible Securities Fund may enter into forward foreign currency exchange contracts for non-hedging purposes, such as to increase exposure to a foreign currency or to shift exposure to foreign currency fluctuations from one country to another.

Investment Policies

Foreign Currency
Transactions — Continued

A contract for the purchase or sale of a security denominated in a foreign currency may be entered into in order to “lock in” the U.S. dollar price of the security. By entering into a forward contract for the purchase or sale, for a fixed amount of U.S. dollars, of the amount of foreign currency involved in the underlying security transactions, the Fund will be able to protect itself against a possible loss. Such loss would result from an adverse change in the relationship between the U.S. dollar and the foreign currency during the period between the date on which the security is purchased or sold and the date on which payment is made or received.

When the Subadvisor and/or the Advisor, as applicable, believes that the currency of a particular foreign country may suffer a substantial decline against the U.S. dollar, it may also enter into a forward contract to sell the amount of foreign currency for a fixed amount of dollars that approximates the value of some or all of the relevant Fund’s portfolio securities denominated in such foreign currency. The precise matching of the forward contract amounts and the value of the securities involved will not generally be possible, since the future value of such securities in foreign currencies will change as a consequence of market movements in the value of those securities between the date the forward contract is entered into and the date it matures.

Harbor International Small Cap Fund, Harbor Core Plus Fund and Harbor Convertible Securities Fund may engage in cross-hedging by using foreign contracts in one currency to hedge against fluctuations in the value of securities denominated in a different currency if the Fund’s Subadvisor and/or the Advisor, as applicable, determines, for example, that there is a pattern of correlation between the two currencies. These practices may be limited by the requirements for qualification of the Fund as a regulated investment company for tax purposes. Harbor International Small Cap Fund and Harbor Core Plus Fund may also purchase and sell forward contracts for non-hedging purposes when its Subadvisor anticipates that the foreign currency will appreciate or depreciate in value but that securities in that currency do not present attractive investment opportunities and are not held in the Fund’s portfolio.

When foreign currency exchange contracts are used for hedging purposes, a Fund will not enter into forward contracts to sell currency or maintain a net exposure to such contracts if their consummation would obligate the Fund to deliver an amount of foreign currency in excess of the value of the Fund’s portfolio securities or other assets denominated in that currency. At the consummation of the forward contract, the Fund may either make delivery of the foreign currency or terminate its contractual obligation to deliver by purchasing an offsetting contract obligating it to purchase the same amount of such foreign currency at the same maturity date. If the Fund chooses to make delivery of the foreign currency, it may be required to obtain such currency through the sale of portfolio securities denominated in such currency or through conversion of other assets of the Fund into such currency. If the Fund engages in an offsetting transaction, it will incur a gain or a loss to the extent that there has been a change in forward contract prices. Closing purchase transactions with respect to forward contracts are usually made with the currency trader who is a party to the original forward contract.

Transactions in forward contracts may be entered into only when deemed appropriate by the Subadvisor and/or the Advisor, as applicable. The Fund generally will not enter into a forward contract with a term of greater than one year. The Fund may experience delays in the settlement of its foreign currency transactions.

Using forward contracts to protect the value of a Fund’s portfolio securities against a decline in the value of a currency does not eliminate fluctuations in the underlying prices of the securities. It simply establishes a rate of exchange that can be achieved at some future point in time. The precise projection of short-term currency market movements is not possible, and short-term hedging provides a means of fixing the dollar value of only a portion of a Fund’s foreign assets.

While a Fund may enter into forward foreign currency exchange contracts to reduce currency exchange rate risks, transactions in such contracts involve certain other risks. Unanticipated changes in currency prices may result in a poorer overall performance for the Fund than if it had not engaged in any such transactions. Certain strategies could minimize the risk of loss due to a decline in the value of the hedged foreign currency, but they could also limit any potential gain that might result from an increase in the value of the currency. Moreover, there may be imperfect correlation between a Fund’s portfolio holdings of securities denominated in a particular currency and forward contracts entered into by the Fund. Such imperfect correlation may cause a Fund to sustain losses that will prevent the Fund from achieving a complete hedge or expose the Fund to risk of foreign exchange loss.

An issuer of fixed income securities may be domiciled in a country other than the country in whose currency the instrument is denominated. The Fund may also invest in debt securities denominated in the European Currency Unit (“ECU”), which is a “basket” consisting of a specified amount, in the currencies of certain of the member states of the European Community. The specific amounts of currencies comprising the ECU may be adjusted by the Council of Ministers of the European Community from time to time to reflect changes in relative values of the underlying currencies. In addition, the Fund may invest in securities denominated in other currency “baskets.”

Investment Policies

Foreign Currency
Transactions — Continued

A Fund’s activities in foreign currency contracts, currency futures contracts and related options and currency options may be limited by the requirements of Subchapter M of the Code for qualification as a regulated investment company.

Foreign Securities

The Fund’s Subadvisor and/or the Advisor, as applicable, is responsible for determining, with respect to the Fund(s) managed, whether a particular issuer would be considered a foreign or emerging market issuer. Normally, foreign or emerging market governments and their agencies and instrumentalities are considered foreign or emerging market issuers, respectively. In the case of non-governmental issuers, each Fund’s Subadvisor and/or the Advisor, as applicable, may consider an issuer to be a foreign or emerging market issuer if:

◾

the company has been classified by MSCI, FTSE, or S&P indices or another major index provider as a foreign or emerging market issuer;

◾

the securities of the company principally trade on stock exchanges in one or more foreign or emerging market countries;

◾

a company derives a substantial portion of its total revenue from goods produced, sales made or services performed in one or more foreign or emerging market countries or a substantial portion of its assets are located in one or more foreign or emerging market countries;

◾

the company is organized under the laws of a foreign or emerging market country or its principal executive offices are located in a foreign or emerging market country; and/or

◾

the Subadvisor and/or the Advisor, as applicable, otherwise determines an issuer to be a foreign or emerging markets issuer in its discretion based on any other factors relevant to a particular issuer.

Each Fund’s Subadvisor and/or the Advisor, as applicable, may weigh those factors differently when making a classification decision. Because the global nature of many companies can make the classification of those companies difficult and because the Funds' Subadvisors and/or the, Advisor, as applicable, do not consult with one another with respect to the management of their respective Funds, the Subadvisors may, on occasion, classify the same issuer differently. Certain companies which are organized under the laws of a foreign or emerging market country may nevertheless be classified by a Fund’s Subadvisor and/or the Advisor, as applicable, as a domestic issuer. This may occur when the company’s economic fortunes and risks are primarily linked to the U.S. and the company’s principal operations are conducted from the U.S. or when the company’s equity securities trade principally on a U.S. stock exchange.

FOREIGN SECURITIES RISKS

Investing in securities of foreign companies and governments may involve risks which are not ordinarily associated with investing in domestic securities. These risks include changes in currency exchange rates and currency exchange control regulations or other foreign or U.S. laws or restrictions applicable to such investments. A decline in the exchange rate may also reduce the value of certain portfolio securities. Even though the securities are denominated in U.S. dollars, exchange rate changes may adversely affect the company’s operations or financial health.

Fixed commissions on foreign securities exchanges are generally higher than negotiated commissions on U.S. exchanges, although each Fund endeavors to achieve the most favorable net results on portfolio transactions. There is generally less government supervision and regulation of securities exchanges, brokers, dealers and listed companies than in the U.S. Mail service between the U.S. and foreign countries may be slower or less reliable than within the U.S., thus increasing the risk of delayed settlements of portfolio transactions or loss of certificates for portfolio securities. Individual foreign economies may also differ favorably or unfavorably from the U.S. economy in such respects as growth of gross national product, rate of inflation, capital reinvestment, resource self-sufficiency and balance of payments position.

In addition, investments in foreign countries could be affected by other factors generally not thought to be present in the U.S. Such factors include the unavailability of financial information or the difficulty of interpreting financial information prepared under foreign accounting standards; less liquidity and more volatility in foreign securities markets; the possibility of expropriation; the imposition of foreign withholding and other taxes; the impact of political, social or diplomatic developments; limitations on the movement of funds or other assets of a Fund between different countries; difficulties in invoking legal process abroad and enforcing contractual obligations; and the difficulty of assessing economic trends in foreign countries.

Foreign markets also have different clearance and settlement procedures, and in certain markets there have been times when settlements have been unable to keep pace with the volume of securities transactions. These delays in settlement could result in temporary periods when a portion of the assets of a Fund is uninvested and no return is earned thereon. The inability of a Fund to make

Investment Policies

Foreign Securities —
Continued

intended security purchases due to settlement problems could cause a Fund to miss attractive investment opportunities. An inability to dispose of portfolio securities due to settlement problems could result either in losses to a Fund due to subsequent declines in value of the portfolio securities or, if a Fund has entered into a contract to sell the securities, could result in possible liability to the purchaser.

The Funds’ custodian has established and monitors subcustodial relationships with banks and certain other financial institutions in the foreign countries in which the Funds may invest to permit the Funds’ assets to be held in those foreign countries. These relationships have been established pursuant to Rule 17f-5 of the Investment Company Act, which governs the establishment of foreign subcustodial arrangements for mutual funds. The Funds’ subcustodial arrangements may be subject to certain risks including: (i) the inability of the Funds to recover assets in the event of the subcustodian’s bankruptcy; (ii) legal restrictions on the Funds’ ability to recover assets lost while under the care of the subcustodian; (iii) the likelihood of expropriation, confiscation or a freeze of the Funds’ assets; and (iv) difficulties in converting the Funds’ cash and cash equivalents to U.S. dollars. The Advisor and Subadvisor(s) have evaluated the political risk associated with an investment in a particular country.

Investing in securities of non-U.S. companies may entail additional risks especially in emerging countries due to the potential political and economic instability of certain countries. These risks include expropriation, nationalization, confiscation or the imposition of restrictions on foreign investment and on repatriation of capital invested and the imposition of sanctions. Should one of these events occur, a Fund could lose its entire investment in any such country. A Fund’s investments would similarly be adversely affected by exchange control regulation in any of those countries.

Even though opportunities for investment may exist in foreign countries, any changes in the leadership or policies of the governments of those countries, or in any other government that exercises a significant influence over those countries, may halt the expansion of or reverse the liberalization of foreign investment policies and thereby eliminate any investment opportunities that may currently exist. This is particularly true of emerging markets.

Certain countries in which the Funds may invest may have minority groups that advocate religious or revolutionary philosophies or support ethnic independence. Any action on the part of such individuals could carry the potential for destruction or confiscation of property owned by individuals and entities foreign to such country and could cause the loss of a Fund’s investment in those countries.

Certain countries prohibit or impose substantial restrictions on investments in their capital and equity markets by foreign entities like the Funds. Certain countries require governmental approval prior to foreign investments or limit the amount of foreign investment in a particular company or limit the investment to only a specific class of securities of a company that may have less advantageous terms than securities of the company available for purchase by nationals. Moreover, the national policies of certain countries may restrict investment opportunities in issuers or industries deemed sensitive to national interests. In addition, some countries require governmental approval for the repatriation of investment income, capital or the proceeds of securities sales by foreign investors. A Fund could be adversely affected by delays in, or a refusal to grant, any required governmental approval for repatriation, as well as by the application to it of other restrictions on investments. In particular, restrictions on repatriation could make it more difficult for a Fund to obtain cash necessary to satisfy the tax distribution requirements that must be satisfied in order for the Fund to avoid federal income or excise tax.

Global economies and financial markets are becoming increasingly interconnected and conditions and events in one country, region or financial market may adversely impact issuers in a different country, region or financial market. In January 2020, the United Kingdom withdrew from the EU (referred to as “Brexit”). Brexit has resulted in volatility in European and global markets and could have significant negative impacts on financial markets in the United Kingdom and throughout Europe. The longer term economic, legal, political and social framework to be put in place between the United Kingdom and the EU is unclear at this stage and is likely to lead to ongoing political and economic uncertainty and periods of exacerbated volatility in both the United Kingdom and in wider European markets for some time. This uncertainty may have an adverse effect on the economy generally and on the value of a Fund’s investments.

EMERGING MARKETS

Investments in emerging markets involve risks in addition to those generally associated with investments in foreign securities.

Political and economic structures in many emerging markets may be undergoing significant evolution and rapid development, and such countries may lack the social, political and economic stability characteristic of more developed countries. As a result, the risks described above relating to investments in foreign securities, including the risks of nationalization or expropriation of assets, would be heightened. In addition, unanticipated political or social developments may affect the values of a Fund’s investments and the availability to the Fund of additional investments in such emerging markets. The small size

Investment Policies

Foreign Securities —
Continued

and inexperience of the securities markets in certain emerging markets and the limited volume of trading in securities in those markets may make a Fund’s investments in such countries less liquid and more volatile than investments in countries with more developed securities markets (such as the U.S., Japan and most Western European countries).

Emerging market countries may have more or less government regulation and generally do not impose as extensive and frequent accounting, auditing, financial and other reporting requirements as the securities markets of more developed countries. The degree of cooperation between issuers in emerging and frontier market countries with foreign and U.S. financial regulators may vary significantly. Accordingly, regulators may not have sufficient access to audit and oversee issuers, and there could be less information available about issuers in certain emerging market countries. As a result, the ability of the Advisor or a Subadvisor to evaluate local companies or their potential impact on a Fund’s performance could be inhibited. The imposition of exchange controls (including repatriation restrictions), sanctions, confiscations, trade restrictions (including tariffs) and other government restrictions by the United States and other governments, or from problems in share registration, settlement or custody, may also result in losses.

In addition, the U.S. and other nations and international organizations may impose economic sanctions or take other actions that may adversely affect issuers located in certain countries. In particular, the U.S. and other countries have imposed economic sanctions on certain Russian individuals and corporate entities. The U.S. or other countries could also institute broader sanctions on Russia. Such sanctions, any future sanctions or other actions, or even the threat of further sanctions or other actions, may negatively affect the value and liquidity of a Fund’s portfolio. For example, a Fund may be prohibited from investing in securities issued by companies subject to such sanctions. In addition, the sanctions may require a Fund to freeze its existing investments in companies located in certain countries, prohibiting the Fund from buying, selling or otherwise transacting in these investments. Countries subject to sanctions may undertake countermeasures or retaliatory actions which may further impair the value and liquidity of a Fund’s portfolio and potentially disrupt its operations. Such events may have an adverse impact on the economies and debts of other emerging markets as well.

On June 3, 2021, President Biden issued Executive Order 14032 (the “Order”), entitled “Executive Order on Addressing the Threat From Securities Investments That Finance Certain Companies of the People’s Republic of China.” The Order restricts transactions in publicly traded securities, or any publicly traded securities that are derivative of, or are designed to provide investment exposure to such securities, of Chinese military industrial complex companies (“CMIC”) by any United States person. The scope and implementation of the sanctions may change as additional guidance is issued. A Fund could be adversely affected by these sanctions. In particular, a Fund may not be permitted to invest in a CMIC in which it otherwise might invest.

In addition, because of ongoing regional armed conflict in Europe, including an ongoing large-scale invasion of Ukraine by Russia that commenced in February 2022, Russia has been the subject of economic sanctions imposed by countries throughout the world, including the United States. Such sanctions have included, among other things, freezing the assets of particular entities and persons. The imposition of sanctions and other similar measures could, among other things, cause a decline in the value and/or liquidity of securities issued by Russia or companies located in or economically tied to Russia, downgrades in the credit ratings of Russian securities or those of companies located in or economically tied to Russia, devaluation of Russia’s currency, and increased market volatility and disruption in Russia and throughout the world. Sanctions could also result in Russia taking counter measures or retaliatory actions which may further impair the value and liquidity of Russian securities.

INVESTING THROUGH STOCK CONNECT

Harbor International Core Fund (formerly, Harbor Overseas Fund) and Harbor International Growth Fund may invest in eligible securities, such as China A-Shares (“Stock Connect Securities”) that are listed and traded on the Shanghai and Shenzhen Stock Exchanges through the China–Hong Kong Stock Connect program (“Stock Connect”). Stock Connect is a mutual market access program that allows Chinese investors to trade securities listed on the Hong Kong Stock Exchange via Chinese brokers and non-Chinese investors (such as the Funds) to purchase certain Shanghai- and Shenzhen-listed securities through brokers in Hong Kong without obtaining a special license. Purchases of securities through Stock Connect are subject to a number of restrictions, including market-wide trading volume and market cap quota limitations. Although individual investment quotas do not apply, participants in Stock Connect are subject to daily and aggregate investment quotas, which could restrict a Fund’s ability to invest in Stock Connect Securities.

Investment Policies

Foreign Securities —
Continued

Investments in Stock Connect Securities are generally subject to regulation by both Hong Kong and China and Shanghai Stock Exchange or Shenzhen Stock Exchange listing rules, which are subject to change by these regulators. Investors may not sell, purchase or transfer Stock Connect Securities except through Stock Connect. Regulators may suspend or terminate Stock Connect trading in certain circumstances, which may adversely affect a Fund’s ability to trade Stock Connect Securities. A Fund may also be prohibited from trading Stock Connect Securities during local holidays.

Stock Connect transactions are not subject to the investor protection programs of the Hong Kong, Shanghai or Shenzhen Stock Exchanges. Although Chinese regulators have indicated that ultimate investors hold a beneficial interest in Stock Connect Securities, the Chinese law surrounding the rights of beneficial owners of securities and the legal mechanisms available to beneficial owners for enforcing their rights are underdeveloped and untested. As the law evolves, there is a risk that a Fund’s ability to enforce its ownership rights may be uncertain, which could subject the Fund to significant losses. Trading in Stock Connect Securities may be subject to various fees, taxes and market charges imposed by Chinese market participants and regulatory authorities and may result in greater trading expenses borne by a Fund.

ADRs, EDRs, IDRs, AND GDRs

Each equity Fund, Harbor Core Plus Fund and Harbor Core Bond Fund may invest in American Depositary Receipts (“ADRs”), European Depositary Receipts (“EDRs”), International Depositary Receipts (“IDRs”), and Global Depositary Receipts (“GDRs”). ADRs (sponsored or unsponsored) are receipts typically issued by a U.S. bank or trust company evidencing ownership of the underlying foreign securities. Most ADRs are traded on a U.S. stock exchange. Issuers of unsponsored ADRs are not contractually obligated to disclose material information in the U.S., so there may not be a correlation between such information and the market value of the unsponsored ADR. EDRs and IDRs are receipts typically issued by a European bank or trust company evidencing ownership of the underlying foreign securities. GDRs are receipts issued by either a U.S. or non-U.S. banking institution evidencing ownership of the underlying foreign securities.

PARTICIPATORY NOTES (“P-NOTES”)

Harbor Diversified International All Cap Fund, Harbor Global Leaders Fund, Harbor International Fund, Harbor International Core Fund (formerly, Harbor Overseas Fund) and Harbor International Small Cap Fund may invest in P-Notes, to seek to gain economic exposure to markets where holding an underlying security is not feasible. Harbor Global Leaders Fund may invest up to 20% of its net assets in P-Notes. P-Notes are participation interest notes that are issued by banks or broker-dealers and are designed to offer a return linked to a particular underlying equity, debt, currency or market. When purchasing a P-Note, the posting of margin is not required because the full cost of the P-Note (plus commission) is paid at the time of purchase. When the P-Note matures, the issuer will pay to, or receive from, the purchaser the difference between the minimal value of the underlying instrument at the time of purchase and that instrument’s value at maturity. Investments in P-Notes involve the same risks associated with a direct investment in the underlying foreign companies or foreign securities markets that they seek to replicate.

In addition, there can be no assurance that the trading price of P-Notes will equal the underlying value of the foreign companies or foreign securities markets that they seek to replicate. The holder of a P-Note that is linked to a particular underlying security is entitled to receive any dividends paid in connection with an underlying security or instrument. However, the holder of a P-Note does not receive the same voting rights as it would if it directly owned the underlying security or instrument. P-Notes are generally traded over-the-counter. P-Notes constitute general unsecured contractual obligations of the banks or broker-dealers that issue them. There is also counterparty risk associated with these investments because the Fund is relying on the creditworthiness of such counterparty and has no rights under a P-Note against the issuer of the underlying security. In addition, a Fund will incur transaction costs as a result of investment in P-Notes.

Forward Commitments and When-Issued Securities

Securities may be purchased on a when-issued basis and purchased or sold on a forward commitment basis including “TBA” (to be announced) purchase and sale commitments. Purchasing securities on a when-issued or forward commitment basis involves a risk of loss if the value of the security to be purchased declines prior to the settlement date. This risk is in addition to the risk of decline in value of the Fund’s other assets. Although a Fund would generally purchase securities on a when-issued or forward commitment basis with the intention of acquiring securities for its portfolio, the Fund may dispose of a when-issued security or forward commitment prior to settlement if each Fund’s Subadvisor and/or the Advisor, as applicable, deems it appropriate to do so. A Fund may enter into a forward-commitment sale to hedge its portfolio positions or to sell securities it owned under a delayed delivery arrangement. Proceeds of such a sale are not received until the contractual settlement date. A Fund may realize short-term gains or losses upon such purchases and sales. These transactions involve a commitment by the Fund to purchase or sell securities at a future date (ordinarily one or

Investment Policies

Forward Commitments and
When-Issued Securities —
Continued

two months later). The price of the underlying securities (usually expressed in terms of yield) and the date when the securities will be delivered and paid for (the settlement date) are fixed at the time the transaction is negotiated. When-issued purchases and forward commitment transactions are negotiated directly with the other party, and such commitments are not traded on exchanges.

When-issued purchases and forward commitment transactions enable a Fund to lock in what is believed to be an attractive price or yield on a particular security for a period of time, regardless of future changes in interest rates. For instance, in periods of rising interest rates and falling prices, the Fund might sell securities it owns on a forward commitment basis to limit its exposure to falling prices. In periods of falling interest rates and rising prices, the Fund might sell securities it owns and purchase the same or a similar security on a when-issued or forward commitment basis, thereby obtaining the benefit of currently higher yields.

The value of securities purchased on a when-issued or forward commitment basis and any subsequent fluctuations in their value are reflected in the computation of the Fund’s net asset value starting on the date of the agreement to purchase the securities. The Fund does not earn interest on the securities it has committed to purchase until they are paid for and delivered on the settlement date. When the Fund makes a forward commitment to sell securities it owns, the proceeds to be received upon settlement are included in the Fund’s assets. Fluctuations in the market value of the underlying securities are not reflected in the Fund’s net asset value as long as the commitment to sell remains in effect. Settlement of when-issued purchases and forward commitment transactions generally takes place within two months after the date of the transaction, but the Fund may agree to a longer settlement period.

A Fund will purchase securities on a when-issued basis or purchase or sell securities on a forward commitment basis only with the intention of completing the transaction and actually purchasing or selling the securities. If deemed advisable as a matter of investment strategy, however, the Fund may dispose of or renegotiate a commitment after it is entered into. The Fund also may sell securities it has committed to purchase before those securities are delivered to the Fund on the settlement date. The Fund may realize a capital gain or loss in connection with these transactions.

Recently finalized Financial Industry Regulatory Authority, Inc. (“FINRA”) rules include mandatory margin requirements that will require a Fund to post collateral in connection with its TBA transactions, which could increase the cost of TBA transactions to the Fund and impose added operational complexity.

Illiquid Securities

The Fund will not invest more than 15% of its net assets in illiquid investments, as defined in Rule 22e-4 under the Investment Company Act. Fund investments will be considered illiquid if the Fund reasonably expects that such investments cannot be sold or disposed of in current market conditions within seven calendar days or less without the sale or disposition significantly changing the market values of the investments. The Trust, on behalf of the Fund, has established a liquidity risk management program in accordance with Rule 22e-4 under the Investment Company Act, which provides for the assessment, management and periodic review each Fund’s liquidity risk, the classification and monthly review of the Fund’s portfolio investments, the determination and periodic review of, and procedures to address a shortfall in, the Fund’s highly liquid investment minimum, if applicable, and limiting the Fund’s illiquid investments to 15% of the Fund’s net assets.

The Board of Trustees has adopted procedures for determining the liquidity of Fund investments that apply to all Funds. The Board of Trustees has delegated to the Advisor and Subadvisors the daily function of determining and monitoring the liquidity of Fund investments in accordance with procedures adopted by the Board of Trustees. The Board of Trustees retains oversight of the liquidity determination process.

Inflation-Indexed Bonds

Inflation-indexed bonds are fixed income securities whose principal value is periodically adjusted according to the rate of inflation. Two structures are common. The U.S. Treasury and some other issuers use a structure that accrues inflation into the principal value of the bond. Most other issuers pay out the Consumer Price Index accruals as part of a semiannual coupon.

Inflation-indexed securities issued by the U.S. Treasury have maturities of five, ten or twenty years, although it is possible that securities with other maturities will be issued in the future. The U.S. Treasury securities pay interest on a semiannual basis, equal to a fixed percentage of the inflation-adjusted principal amount. For example, if a Fund purchased an inflation-indexed bond with a par value of $1,000 and a 3% real rate of return coupon (payable 1.5% semi-annually), and inflation over the first six months were 1%, the mid-year par value of the bond would be $1,010 and the first semi-annual interest payment would be $15.15 ($1,010 times 1.5%). If inflation during the second half of the year resulted in the whole years’ inflation equaling 3%, the end-of-year par value of the bond would be $1,030 and the second semi-annual interest payment would be $15.45 ($1,030 times 1.5%).

Investment Policies

Inflation-Indexed Bonds —
Continued

If the periodic adjustment rate measuring inflation falls, the principal value of inflation-indexed bonds will be adjusted downward, and consequently, the interest payable on these securities (calculated with respect to a smaller principal amount) will be reduced. Repayment of the original bond principal upon maturity (as adjusted for inflation) is guaranteed in the case of U.S. Treasury inflation-indexed bonds, even during a period of deflation. However, the current market value of the bonds is not guaranteed and will fluctuate. The Funds may also invest in other inflation-related bonds, which may or may not provide a similar guarantee. If a guarantee of principal is not provided, the adjusted principal value of the bond repaid at maturity may be less than the original principal. The value of inflation-indexed bonds is expected to change in response to changes in real interest rates. Real interest rates in turn are tied to the relationship between nominal interest rates and the rate of inflation.

Therefore, if inflation was to rise at a faster rate than nominal interest rates, real interest rates might decline, leading to an increase in value of inflation indexed bonds. In contrast, if nominal interest rates increased at a faster rate than inflation, real interest rates might rise, leading to a decrease in value of inflation-indexed bonds.

While these securities are expected to be protected from long-term inflationary trends, short-term increases in inflation may lead to a decline in value. If interest rates rise due to reasons other than inflation (for example, due to changes in currency exchange rates), investors in these securities may not be protected to the extent that the increase is not reflected in the bond’s inflation measure.

The periodic adjustment of U.S. inflation-indexed bonds is tied to the Consumer Price Index for Urban Consumers (“CPI-U”), which is calculated monthly by the U.S. Bureau of Labor Statistics. The CPI-U is a measurement of changes in the cost of living, made up of components such as housing, food, transportation and energy. Inflation-indexed bonds issued by a foreign government are generally adjusted by that government to reflect a comparable inflation index. There can be no assurance that the CPI-U or any foreign inflation index will accurately measure the real rate of inflation in the prices of goods and services. Moreover, there can be no assurance that the rate of inflation in a foreign country will be correlated to the rate of inflation in the U.S.

Any increase in the principal amount of an inflation-indexed bond will be considered taxable ordinary income, even though investors do not receive their principal until maturity.

Interfund Lending

The SEC has granted the Trust and the Advisor an exemptive order permitting the Funds to participate in an interfund lending program whereby the Funds may directly lend to and borrow money from each other for temporary or emergency purposes, such as to satisfy redemption requests or to cover unanticipated cash shortfalls, subject to the terms and conditions of the exemptive order.

Any interfund loan made would be preferable to borrowing from a bank from the perspective of the borrowing Fund and more beneficial than an alternative short-term investment from the perspective of a lending Fund. In accordance with the exemptive order, no Fund may lend its uninvested cash to another Fund if the loan would cause the lending Fund’s aggregate outstanding loans through the interfund lending program to exceed 15% of its current net assets at the time of the loan. In addition, a Fund’s loans to another Fund may not exceed 5% of the lending Fund’s net assets. The duration of each interfund loan will be limited to the time required to obtain cash sufficient to repay such loan, but the duration of the loan may not exceed seven days. Each interfund loan may be called on one business day’s notice by the lending Fund and may be repaid on any day by a borrowing Fund.

A Fund may borrow on an unsecured basis (i.e., without posting collateral) through the interfund lending program only if the borrowing Fund’s outstanding borrowings from all sources immediately after the interfund borrowing total 10% or less of its total assets, provided, that if the borrowing Fund has a secured loan outstanding from any other lender, including another Fund, the lending Fund’s interfund loan will be secured on at least an equal priority basis with at least an equivalent percentage of collateral to loan value as any outstanding loan that requires collateral. If a Fund’s aggregate borrowings from all sources immediately after the interfund borrowing would exceed 10% of the Fund’s total assets, the Fund may borrow through the interfund lending program only on a secured basis. A Fund may not borrow through the interfund lending program nor from any other source if its total outstanding borrowings immediately after the borrowing would exceed 33⅓% of its total assets or any limits provided for by the Fund’s investment policies or restrictions.

The limitations discussed above and the other conditions of the SEC exemptive order are designed to minimize the risks associated with interfund lending for both borrowing Funds and lending Funds. However, no borrowing or lending activity is without risk. When a Fund borrows money from another Fund, there is a risk that the loan could be called on one business day’s notice or not renewed, in which case the Fund may need to borrow from a bank at higher rates if an interfund loan were not available from another Fund. Furthermore, a delay in repayment to a lending Fund could result in a lost investment opportunity or additional lending costs.

Investment Policies

Investments in Other Investment Companies

The Fund may invest in the securities of other investment companies as permitted under the Investment Company Act and the rules and regulations thereunder. Securities of other investment companies, including shares of closed-end investment companies, business development companies, unit investment trusts and open-end investment companies, represent interests in professionally managed portfolios that may invest in any type of security. These investment companies often seek to perform in a similar fashion to a broad-based securities index. Investing in other investment companies involves substantially the same risks as investing directly in the underlying securities but may involve additional expenses at the investment company level, such as portfolio management fees and operating expenses. In addition, these types of investments involve the risk that they will not perform in exactly the same fashion, or in response to the same factors, as the index or underlying instruments. Certain types of investment companies, such as closed-end investment companies and exchange traded funds (commonly known as “ETFs”), issue a fixed number of shares that trade on a stock exchange or over-the-counter at a premium or a discount to their net asset value. Others are continuously offered at net asset value but may also be traded in the secondary market.

Liquidation of Funds

The Board of Trustees may determine to close and/or liquidate a Fund at any time, which may have adverse tax consequences to shareholders. In the event of the liquidation of a Fund, shareholders will receive a liquidating distribution in cash or in-kind equal to their proportionate interest in the Fund. A liquidating distribution would generally be a taxable event to shareholders, resulting in a gain or loss for tax purposes, depending upon a shareholder’s basis in his or her shares of the Fund. A shareholder of a liquidating Fund will not be entitled to any refund or reimbursement of expenses borne, directly or indirectly, by the shareholder (such as Fund operating expenses), and a shareholder may receive an amount in liquidation less than the shareholder’s original investment.

It is the intention of any Fund expecting to close or liquidate to retain its qualification as a regulated investment company under the Code during the liquidation period and, therefore, not to be taxed on any of its net capital gains realized from the sale of its assets or ordinary income earned that it timely distributes to shareholders. In the unlikely event that a Fund should lose its status as a regulated investment company during the liquidation process, the Fund would be subject to taxes which would reduce any or all of the types of liquidating distributions.

Loan Originations, Participations and Assignments

The Fund may invest in loan originations, participations and assignments of portions of such loans. Additionally, the Fund may participate directly in lending syndicates to corporate borrowers. When a Fund is one of the original lenders, it will have a direct contractual relationship with the borrower and can enforce compliance by the borrower with the terms of the relevant credit agreement. Original lenders also negotiate voting and consent rights under the credit agreement. Actions subject to lender vote or consent generally require the vote or consent of the holders of some specified percentage of the outstanding principal amount. Participations, originations and assignments involve special types of risk, including credit risk, interest rate risk, liquidity risk, and the risks of being a lender. If a Fund purchases a participation, it may be able to enforce its rights only through the lender and may assume the credit risk of the lender in addition to the borrower.

A Fund may purchase participations in commercial loans, which may be secured or unsecured. Loan participations typically represent direct participation in a loan owed by a corporate borrower, and generally are offered by banks, other financial institutions or lending syndicates. A Fund may participate in lending syndications, or can buy part of a loan, becoming a co-lender. When purchasing loan participations, a Fund assumes the credit risk associated with the corporate borrower and may assume the credit risk associated with an offering bank or other financial intermediary. The participation interests in which a Fund invests may not be rated by any nationally recognized rating service.

A loan is often administered by an agent bank acting as agent for all holders. The agent bank administers the terms of the loan, as specified in the loan agreement. In addition, the agent bank is normally responsible for the collection of principal and interest payments from the corporate borrower and the apportionment of these payments to the institutions that are parties to the loan agreement. Unless a Fund has direct recourse against the corporate borrower, under the terms of the loan or other indebtedness, the Fund may have to rely on the agent bank or other financial intermediary to apply appropriate credit remedies against a corporate borrower.

A financial institution’s employment as agent bank might be terminated in the event that it fails to observe a requisite standard of care or becomes insolvent. A successor agent bank would generally be appointed to replace the terminated agent bank, and assets held by the agent bank under the loan agreement should remain available to holders of such indebtedness. However, if assets held by the agent bank for the benefit of a Fund were determined to be subject to the claims of the agent bank’s general creditors, the Fund might incur certain costs and delays in realizing payment on a loan or loan participation and could suffer a loss of principal and/or interest. In situations involving other interposed financial institutions (i.e., an insurance company or governmental agency) similar risks may arise.

Investment Policies

Loan Originations,
Participations and
Assignments — Continued

Lenders and purchasers of loans and other forms of direct indebtedness depend primarily upon the creditworthiness of the corporate borrower for payment of principal and interest. If a Fund does not receive scheduled interest or principal payments on such indebtedness, the Fund’s share price and yield could be adversely affected. Loans that are fully secured offer a Fund more protection than an unsecured loan in the event of non-payment of scheduled interest or principal. However, the collateral may be difficult to liquidate, decline in value or be insufficient or unavailable to satisfy a borrower’s obligation. As a result, the Fund may not receive money or payment to which it is entitled under the loan.

A Fund may invest in loan participations with credit quality comparable to that of issuers of its securities investments. Indebtedness of companies whose creditworthiness is poor involves substantially greater risks and may be highly speculative. Some companies may never pay off their indebtedness or may pay only a small fraction of the amount owed. Consequently, when investing in indebtedness of companies with poor credit, a Fund bears a substantial risk of losing the entire amount invested.

Each Fund, in applying its investment restrictions, generally will treat the corporate borrower as the “issuer” of indebtedness held by the Fund. In the case of loan participations where a bank or other lending institution serves as a financial intermediary between a Fund and the corporate borrower, and where the participation does not shift the direct debtor-creditor relationship with the corporate borrower to the Fund, SEC interpretations require the Fund to treat both the lending bank or other lending institution and the corporate borrower as “issuers” for the purposes of applying diversification restrictions. Treating a financial intermediary as an issuer of indebtedness may restrict a Fund’s ability to invest in indebtedness related to a single financial intermediary, or a group of intermediaries engaged in the same industry, even if the underlying borrowers represent many different companies and industries.

Loans and other types of direct indebtedness may not be readily marketable and may be subject to restrictions on resale. In some cases, negotiations involved in disposing of indebtedness may require weeks to complete and transactions in loans are typically subject to long settlement periods (often longer than seven days). Consequently, some indebtedness may be difficult or impossible to dispose of readily at what the Fund’s Subadvisor and/or Advisor, as applicable, believes to be a fair price and, as a result, a Fund’s ability to meet redemption obligations may be impaired. Thus, a Fund may be adversely affected by selling other, more liquid, investments at an unfavorable time and/or under unfavorable conditions, by having to engage in borrowing transactions, such as borrowing against a credit facility, or by taking other actions to raise cash to meet redemption obligations or pursue other investment opportunities. In addition, valuation of illiquid indebtedness involves a greater degree of judgment in determining a Fund’s net asset value than if that value were based on available market quotations and could result in significant variations in the Fund’s daily share price. Nevertheless, some loan interests are traded among certain financial institutions and accordingly may be deemed liquid. As the market for different types of indebtedness develops, the liquidity of these instruments is expected to improve. In addition, a Fund currently intends to treat indebtedness for which there is no readily available market as illiquid for purposes of a Fund’s limitation on illiquid investments. Investments in loan participations are considered to be debt obligations for purposes of a Fund’s investment restrictions relating to the lending of funds or assets by a Fund.

Investments in loans through a direct assignment of the financial institution’s interests with respect to the loan may involve additional risks to a Fund. For example, if a loan is foreclosed, a Fund could become part owner of any collateral, and would bear the costs and liabilities associated with owning and disposing of the collateral. In addition, it is conceivable that under emerging legal theories of lender liability, a Fund could be held liable as co-lender. In certain circumstances, loans may not be deemed to be securities. As a result, as an investor in such loans, a Fund may not have the protection of the anti-fraud provisions of the federal securities laws. In such cases, the Fund generally must rely on the contractual provisions in the loan agreement and any anti-fraud protections available under applicable state law. In the absence of definitive regulatory guidance, a Fund relies on the Subadvisors research in an attempt to avoid situations where fraud or misrepresentation could adversely affect a Fund.

Mortgage “Dollar Roll” Transactions

Mortgage “dollar roll” transactions are permitted with selected banks and broker-dealers. In a dollar roll, the Fund sells mortgage-backed securities and simultaneously contracts to repurchase substantially similar (same type, coupon and maturity) securities on a specified future day. A Fund will only enter into covered rolls. A “covered roll” is a specific type of dollar roll for which there is an offsetting cash or cash equivalent security position that matures on or before the forward settlement date of the dollar roll transaction. Covered rolls are not treated as a borrowing or other senior security and will be excluded from the calculation of a Fund’s borrowings and other senior securities. For financial reporting and tax purposes, a Fund treats mortgage dollar rolls as two separate transactions: one involving the purchase of a security and a separate transaction involving a sale. A Fund does not currently intend to enter into mortgage dollar roll transactions that are accounted for as financing.

Investment Policies

Mortgage-Backed Securities

Investments in mortgage-backed securities are permitted. The Advisor/Subadvisors will monitor regularly the ratings of securities held by each Fund that they manage and the creditworthiness of their issuers.

Harbor Core Bond Fund and Harbor Core Plus Fund may invest in mortgage pass-through certificates and multiple-class pass-through securities, such as real estate mortgage investment conduits (“REMIC”) pass-through certificates, CMOs and stripped mortgage-backed securities (“SMBS”), and other types of “mortgage-backed securities” that may be available in the future. A mortgage-backed security may be an obligation of the issuer backed by a mortgage or pool of mortgages or a direct interest in an underlying pool of mortgages. Some mortgage-backed securities, such as CMOs, make payments of both principal and interest at a variety of intervals; others make semiannual interest payments at a predetermined rate and repay principal at maturity (like a typical bond). Mortgage-backed securities are based on different types of mortgages, including those on commercial real estate or residential properties. Mortgage-backed securities often have stated maturities of up to thirty years when they are issued, depending upon the length of the mortgages underlying the securities. In practice, however, unscheduled or early payments of principal and interest on the underlying mortgages may make the securities’ effective maturity shorter than this, and the prevailing interest rates may be higher or lower than the current yield of a Fund’s portfolio at the time the Fund receives the payments for reinvestment. Mortgage-backed securities may have less potential for capital appreciation than comparable fixed income securities, due to the likelihood of increased prepayments of mortgages as interest rates decline. If a Fund buys mortgage-backed securities at a premium, mortgage foreclosures and prepayments of principal by mortgagors (which may be made at any time without penalty) may result in some loss of the Fund’s principal investment to the extent of the premium paid.

The values of mortgage-backed securities may also change due to shifts in the market’s perception of issuers. In addition, regulatory or tax changes may adversely affect the mortgage securities markets as a whole. Non-governmental mortgage-backed securities may offer higher yields than those issued by government entities, but also may be subject to greater price changes than governmental issues.

Mortgage-related securities that are backed by pools of subprime mortgages are generally subject to a greater level of non-payment risk than mortgage-related securities that are not backed by pools of subprime mortgages. Subprime mortgages are loans made to borrowers with lower credit ratings and/or a shorter credit history and such borrowers are more likely to default on their obligations under the loan than more creditworthy borrowers. As a result, subprime mortgages underlying a mortgage-related security can experience a significant rate of non-payment. To the extent a Fund invests in mortgage-related securities backed by subprime mortgages, the Fund’s investment will be particularly susceptible to non-payment risk and the risks generally associated with investments in mortgage-related securities. Thus, the value of the Fund’s investment may be adversely affected by borrower non-payments, changes in interest rates, developments in the real estate market and other market and economic developments.

GUARANTEED MORTGAGE PASS-THROUGH SECURITIES

Guaranteed mortgage pass-through securities represent participation interests in pools of residential mortgage loans and are issued by U.S. governmental or private lenders and guaranteed by the U.S. government or one of its agencies or instrumentalities, including but not limited to the Government National Mortgage Association (“GNMA” or “Ginnie Mae”), the Federal National Mortgage Association (“FNMA” or “Fannie Mae”) and the Federal Home Loan Mortgage Corporation (“FHLMC” or “Freddie Mac”). Ginnie Mae certificates are guaranteed by the full faith and credit of the U.S. government for timely payment of principal and interest on the certificates. Fannie Mae certificates are guaranteed by Fannie Mae, a federally chartered and privately owned corporation, for full and timely payment of principal and interest on the certificates. Freddie Mac certificates are guaranteed by Freddie Mac, a corporate instrumentality of the U.S. government, for timely payment of interest and the ultimate collection of all principal of the related mortgage loans. Securities issued or guaranteed by entities such as Fannie Mae or Freddie Mac are not issued or guaranteed by the U.S. government.

Commercial banks, savings and loan institutions, private mortgage insurance companies, mortgage bankers and other secondary market issuers also create pass-through pools of conventional residential mortgage loans. Such issuers may, in addition, be the originators and/or servicers of the underlying mortgage loans as well as the guarantors of the mortgage-related securities. Holders of privately issued mortgage-backed securities are dependent on, yet may have limited access to information enabling them to evaluate, the competence and integrity of these private originators and institutions. Because there are no direct or indirect government or agency guarantees of payments in pools created by such non-governmental issuers, they generally offer a higher rate of interest than government and government-related pools. Timely payment of interest and principal of these pools may be supported by insurance or guarantees, including individual loan, title, pool and hazard insurance and letters

Investment Policies

Mortgage-Backed
Securities — Continued

of credit. The insurance and guarantees are issued by governmental entities, private insurers and the mortgage poolers. There can be no assurance that the private insurers or guarantors can meet their obligations under the insurance policies or guarantee arrangements, and the protection afforded by insurance or guarantees may be insufficient to cover all losses if underlying mortgage borrowers default at a greater than expected rate.

Mortgage-related securities without insurance or guarantees may be purchased if the Subadvisor and/or the Advisor, as applicable, determines that the securities meet a Fund’s quality standards. Mortgage-related securities issued by certain private organizations may not be readily marketable.

MULTIPLE-CLASS PASS-THROUGH SECURITIES AND COLLATERALIZED MORTGAGE OBLIGATIONS

CMOs and REMIC pass-through or participation certificates may be issued by, among others, U.S. government agencies and instrumentalities as well as private issuers. REMICs are CMO vehicles that qualify for special tax treatment under the Code and invest in mortgages principally secured by interests in real property and other investments permitted by the Code. CMOs and REMIC certificates are issued in multiple classes and the principal of and interest on the mortgage assets may be allocated among the several classes of CMOs or REMIC certificates in various ways. Each class of CMOs or REMIC certificates, often referred to as a “tranche,” is issued at a specific adjustable or fixed interest rate and must be fully retired no later than its final distribution date. Generally, interest is paid or accrues on all classes of CMOs or REMIC certificates on a monthly basis.

Typically, CMOs are collateralized by Ginnie Mae, Fannie Mae or Freddie Mac certificates but also may be collateralized by other mortgage assets, such as whole loans or private mortgage pass-through securities. Debt service on CMOs is provided from payments of principal and interest on collateral of mortgaged assets and any reinvestment income thereon.

STRIPPED MORTGAGE-BACKED SECURITIES

SMBS are derivative multiple-class mortgage-backed securities that are created when a U.S. government agency or a financial institution separates the interest and principal components of a mortgage-backed security and sells them as individual securities. SMBS are usually structured with two classes that receive different proportions of interest and principal distributions on a pool of mortgage assets. A typical SMBS will have one class receiving some of the interest and most of the principal, while the other class will receive most of the interest and the remaining principal. The holder of the “principal-only” security (“PO”) receives the principal payments made by the underlying mortgage-backed security, while the holder of the “interest-only” security (“IO”) receives interest payments from the same underlying security. The prices of stripped mortgage-backed securities may be particularly affected by changes in interest rates. As interest rates fall, prepayment rates tend to increase, which tends to reduce prices of IOs and increase prices of POs. Rising interest rates can have the opposite effect. Although the market for these securities is increasingly liquid, the relevant Subadvisor and/or the Advisor, as applicable, may determine that certain stripped mortgage-backed securities issued by the U.S. government, its agencies or instrumentalities are not readily marketable. If so, these securities, together with privately-issued stripped mortgage-backed securities, will be considered illiquid for purposes of a Fund’s limitation on investments in illiquid securities. The yields and market risk of interest only and principal only SMBS, respectively, may be more volatile than those of other fixed income securities. The staff of the SEC considers privately issued SMBS to be illiquid.

REVERSE MORTGAGES

Mortgage-related securities include, among other things, securities that reflect an interest in reverse mortgages. In a reverse mortgage, a lender makes a loan to a homeowner based on the homeowner’s equity in his or her home. While a homeowner must be age 62 or older to qualify for a reverse mortgage, reverse mortgages may have no income restrictions. Repayment of the interest or principal for the loan is generally not required until the homeowner dies, sells the home, or ceases to use the home as his or her primary residence.

There are three general types of reverse mortgages: (1) single-purpose reverse mortgages, which are offered by certain state and local government agencies and nonprofit organizations; (2) federally-insured reverse mortgages, which are backed by the U. S. Department of Housing and Urban Development; and (3) proprietary reverse mortgages, which are privately offered loans. A mortgage-related security may be backed by a single type of reverse mortgage. Reverse mortgage-related securities include agency and privately issued mortgage-related securities. The principal government guarantor of reverse mortgage-related securities is Ginnie Mae.

Investment Policies

Mortgage-Backed
Securities — Continued

Reverse mortgage-related securities may be subject to risks different than other types of mortgage-related securities due to the unique nature of the underlying loans. The date of repayment for such loans is uncertain and may occur sooner or later than anticipated. The timing of payments for the corresponding mortgage-related security may be uncertain. Because reverse mortgages are offered only to persons 62 and older and there may be no income restrictions, the loans may react differently than traditional home loans to market events.

RISK FACTORS ASSOCIATED WITH MORTGAGE-BACKED SECURITIES

Investing in mortgage-backed securities involves certain risks, including the failure of a counterparty to meet its commitments, adverse interest rate changes and the effects of prepayments on mortgage cash flows. In addition, investing in the lowest tranche of CMOs and REMIC certificates involves risks similar to those associated with investing in equity securities. However, due to adverse tax consequences under current tax laws, a Fund does not intend to acquire “residual” interests in REMICs. Further, the yield characteristics of mortgage-backed securities differ from those of traditional fixed income securities. The major differences typically include more frequent interest and principal payments (usually monthly), the adjustability of interest rates, and the possibility that prepayments of principal may be made substantially earlier than the final distribution date.

Prepayment rates are influenced by changes in current interest rates and a variety of economic, geographic, social and other factors and cannot be predicted with certainty. Both adjustable rate mortgage loans and fixed rate mortgage loans may be subject to a greater rate of principal prepayments in a declining interest rate environment and to a lesser rate of principal prepayments in an increasing interest rate environment. Under certain interest rate and prepayment rate scenarios, a Fund may fail to recoup fully its investment in mortgage-backed securities notwithstanding any direct or indirect governmental, agency or other guarantee. When a Fund reinvests amounts representing payments and unscheduled prepayments of principal, it may obtain a rate of interest that is lower than the rate on existing adjustable rate mortgage pass-through securities. Thus, mortgage-backed securities, and adjustable rate mortgage pass-through securities in particular, may be less effective than other types of U.S. government securities as a means of “locking in” interest rates.

Municipal Bonds

The Fund may invest in securities issued by states, municipalities and other political subdivisions, agencies, authorities and instrumentalities of states and multistate agencies or authorities. Municipal bonds share the attributes of fixed income securities in general, but are generally issued by states, municipalities and other political subdivisions, agencies, authorities and instrumentalities of states and multi-state agencies or authorities. The municipal bonds that a Fund may purchase include general obligation bonds and limited obligation bonds (or revenue bonds), including industrial development bonds issued pursuant to former federal tax law. General obligation bonds are obligations involving the credit of an issuer possessing taxing power and are payable from such issuer’s general revenues and not from any particular source. Limited obligation bonds are payable only from the revenues derived from a particular facility or class of facilities or, in some cases, from the proceeds of a special excise or other specific revenue source. Tax-exempt private activity bonds and industrial development bonds generally also are revenue bonds and thus are not payable from the issuer’s general revenues. The credit and quality of private activity bonds and industrial development bonds are usually related to the credit of the corporate user of the facilities. Payment of interest on and repayment of principal of such bonds is the responsibility of the corporate user (and/or any guarantor).

Under the Code, certain limited obligation bonds are considered “private activity bonds” and interest paid on such bonds is treated as an item of tax preference for purposes of calculating federal alternative minimum tax liability.

A Fund may invest in municipal warrants, which are essentially call options on municipal bonds. In exchange for a premium, municipal warrants give the purchaser the right, but not the obligation, to purchase a municipal bond in the future. A Fund may purchase custodial receipts representing the right to receive either the principal amount or the periodic interest payments or both with respect to specific underlying municipal bonds. A Fund may invest in municipal bonds with credit enhancements such as letters of credit, municipal bond insurance and Standby Bond Purchase Agreements (“SBPAs”). A Fund may invest in Residual Interest Bonds (“RIBs”), which brokers create by depositing a municipal bond in a trust. The trust in turn issues a variable rate security and RIBs.

Municipal bonds are subject to credit and market risk. Generally, prices of higher quality issues tend to fluctuate less with changes in market interest rates than prices of lower quality issues and prices of longer maturity issues tend to fluctuate more than prices of shorter maturity issues.

Investment Policies

Municipal Bonds —
Continued

Prices and yields on municipal bonds are dependent on a variety of factors, including general money market conditions, the financial condition of the issuer, general conditions of the municipal bond market, the size of a particular offering, the maturity of the obligation and the rating of the issue. A number of these factors, including the ratings of particular issues, are subject to change from time to time. Information about the financial condition of an issuer of municipal bonds may not be as extensive as information made available by corporations whose securities are publicly traded.

Obligations of issuers of municipal bonds are subject to the provisions of bankruptcy, insolvency and other laws affecting the rights and remedies of creditors. Congress or state legislatures may seek to extend the time for payment of principal or interest, or both, or to impose other constraints upon enforcement of such obligations. There is also the possibility that as a result of litigation or other conditions, the power or ability of issuers to meet their obligations for the payment of interest and principal on their municipal bonds may be materially affected or their obligations may be found to be invalid or unenforceable. Such litigation or conditions may from time to time have the effect of introducing uncertainties in the market for municipal bonds or certain segments thereof, or of materially affecting the credit risk with respect to particular bonds. Adverse economic, business, legal or political developments might affect all or a substantial portion of a Fund’s municipal bonds in the same manner.

The bankruptcy of a large city is rare, making its consequences difficult to predict. A Fund’s investments in securities affected by a city’s bankruptcy may decline in value and could reduce the Fund’s performance. In addition, difficulties in the municipal securities markets could result in increased illiquidity, volatility and credit risk, and a decrease in the number of municipal securities investment opportunities. The value of municipal securities may also be affected by uncertainties involving the taxation of municipal securities or the rights of municipal securities holders in the event of a bankruptcy. Proposals to restrict or eliminate the federal income tax exemption for interest on municipal securities are introduced before Congress from time to time. These legal uncertainties could affect the municipal securities market generally, certain specific segments of the market, or the relative credit quality of particular securities.

The secondary market for municipal bonds typically has been less liquid than that for taxable fixed income securities, and this may affect a Fund’s ability to sell particular municipal bonds at then-current market prices, especially in periods when other investors are attempting to sell the same securities. Additionally, municipal bonds rated below investment-grade (i.e., high-yield municipal bonds) may not be as liquid as higher-rated municipal bonds. Reduced liquidity in the secondary market may have an adverse impact on the market price of a municipal bond and on a Fund’s ability to sell a municipal bond in response to changes or anticipated changes in economic conditions or to meet the Fund’s cash needs. Reduced liquidity may also make it more difficult to obtain market quotations based on actual trades for purposes of valuing a Fund’s portfolio.

Partnership Securities

The Fund may invest in securities issued by publicly traded partnerships or master limited partnerships or limited liability companies (together referred to as “PTPs/MLPs”). These entities may be publicly traded on stock exchanges or markets such as the New York Stock Exchange (“NYSE”), the NYSE Alternext US LLC (“NYSE Alternext”) and NASDAQ. PTPs/MLPs often own businesses or properties relating to energy, natural resources or real estate, or may be involved in the film industry or research and development activities. Generally, PTPs/MLPs are operated under the supervision of one or more managing partners or members. Limited partners, unit holders, or members (such as a Fund, if it invests in a partnership) are not involved in the day-to-day management of the company. Limited partners, unit holders, or members are allocated income and capital gains associated with the partnership project in accordance with the terms of the partnership or limited liability company agreement.

At times PTPs/MLPs may potentially offer relatively high yields compared to common stocks. Because PTPs/MLPs are generally treated as partnerships or similar limited liability “pass-through” entities for tax purposes, they do not ordinarily pay income taxes, but pass their earnings on to unit holders (except in the case of some publicly-traded firms that may be taxed as corporations). For tax purposes, limited partners, unit holders, or members may be allocated taxable income with respect to only a portion of the distributions attributed to them because certain other portions may be attributed to the repayment of initial investments and may thereby lower the cost basis of the units or shares owned by unit or share holders. As a result, unit holders may effectively defer taxation on the receipt of some distributions until they sell their units. These tax consequences may differ for different types of entities.

Although the high yields potentially offered by these investments may be attractive, PTPs/MLPs have some disadvantages and present some risks. Investors in a partnership or limited liability company may have fewer protections under state law than investors in a corporation. Distribution and management fees may be substantial. Losses are generally considered passive and cannot offset income other than income or gains relating to the same entity. These tax consequences may differ for different types of entities. Many PTPs/MLPs may operate in certain limited sectors such as, without limitation, energy, natural resources, and real estate, which may be volatile or subject to periodic downturns, including

Investment Policies

Partnership Securities —
Continued

as a result of geopolitical events. Growth may be limited because most cash is paid out to limited partners, unit holders, or members rather than retained to finance growth. The performance of PTPs/MLPs may be partly tied to interest rates. Rising interest rates, a poor economy, or weak cash flows are among the factors that can pose significant risks for investments in PTPs/MLPs. Investments in PTPs/MLPs also may be illiquid at times.

The Fund may also invest in relatively illiquid securities issued by limited partnerships or limited liability companies that are not publicly traded. These securities, which may represent investments in certain areas such as real estate or private equity, may present many of the same risks of PTPs/MLPs. In addition, they may present other risks including higher management and distribution fees, uncertain cash flows, potential calls for additional capital, and very limited liquidity.

Preferred Stocks

Preferred stock generally has a preference as to dividends and upon liquidation over an issuer’s common stock but ranks junior to debt securities in an issuer’s capital structure. Preferred stock generally pays dividends in cash or in additional shares of preferred stock at a defined rate. Unlike interest payments on debt securities, preferred stock dividends are payable only if declared by the issuer’s board of directors. Dividends on preferred stock may be cumulative, meaning that, in the event the issuer fails to make one or more dividend payments on the preferred stock, no dividends may be paid on the issuer’s common stock until all unpaid preferred stock dividends have been paid. Preferred stock also may be subject to optional or mandatory redemption provisions and generally carry no voting rights. In the case of Harbor Core Plus Fund and Harbor Core Bond Fund, investments in preferred stocks are limited to 10% of each Fund’s total assets.

Real Estate Investment Trusts

The Fund may gain exposure to the real estate sector by investing in real estate investment trusts (“REITs”), and common, preferred and convertible securities of issuers in real estate-related industries. Harbor Core Plus Fund, Harbor Convertible Securities Fund and Harbor Core Bond Fund may also invest in loans or other investments secured by real estate and may, as a result of default, foreclosure or otherwise, take possession of and hold real estate as a direct owner (see “Loan Participations and Assignments”). Each of these types of investments are subject, directly or indirectly, to risks associated with ownership of real estate, including changes in the general economic climate or local conditions (such as an oversupply of space or a reduction in demand for space), loss to casualty or condemnation, increases in property taxes and operating expenses, zoning law amendments, changes in interest rates, overbuilding and increased competition, including competition based on rental rates, variations in market value, changes in the financial condition of tenants, changes in operating costs, attractiveness and location of the properties, adverse changes in the real estate markets generally or in specific sectors of the real estate industry and possible environmental liabilities. Real estate-related investments may entail leverage and may be highly volatile.

REITs are pooled investment vehicles that own, and typically operate, income-producing real estate. If a REIT meets certain requirements, including distributing to shareholders substantially all of its taxable income (other than net capital gains), then it is not generally taxed on the income distributed to shareholders. REITs are subject to management fees and other expenses, and so a Fund that invests in REITs will bear its proportionate share of the costs of the REITs’ operations.

There are three general categories of REITs: Equity REITs, Mortgage REITs and Hybrid REITs. Equity REITs invest primarily in direct fee ownership or leasehold ownership of real property; they derive most of their income from rents. Mortgage REITs invest mostly in mortgages on real estate, which may secure construction, development or long-term loans, and the main source of their income is mortgage interest payments. Hybrid REITs hold both ownership and mortgage interests in real estate.

Along with the risks common to different types of real estate-related securities, REITs, no matter the type, involve additional risk factors. These include poor performance by the REIT’s manager, changes to the tax laws, and failure by the REIT to qualify for tax-free distribution of income or exemption under the Investment Company Act of 1940. Furthermore, REITs are not diversified and are heavily dependent on cash flow.

Regulatory Risk and Other Market Events

Financial entities are generally subject to extensive government regulation and intervention. Government regulation and/or intervention may change the way a Fund is regulated, affect the expenses incurred directly by the Fund and the value of its investments, and limit and/or preclude a Fund’s ability to achieve its investment objective. Government regulation may change frequently and may have significant adverse consequences. Moreover, government regulation may have unpredictable and unintended effects. Legislative or administrative changes or court decisions relating to the Code may adversely affect a Fund and/or the issuers of securities held by a Fund.

The Funds’ investments, payment obligations and financing terms may be based on floating rates, such as London Interbank Offer Rate (“LIBOR”) and other similar types of reference rates (each, a “Reference Rate”). In 2017, the United Kingdom’s Financial Conduct Authority warned that LIBOR and certain other Reference Rates may cease to be available or appropriate for use after 2021. At

Investment Policies

Regulatory Risk and Other
Market Events —
Continued

the end of 2021, certain LIBORs were discontinued, but the most widely used LIBORs may continue to be provided on a representative basis until June 30, 2023. The unavailability or replacement of LIBOR may affect the value, liquidity or return on certain Fund investments and may result in costs incurred in connection with closing out positions and entering into new trades. Any pricing adjustments to a Fund’s investments resulting from a substitute Reference Rate may also adversely affect the Fund’s performance and/or net asset value. Until then, the Funds may continue to invest in instruments that reference such rates or otherwise use such Reference Rates due to favorable liquidity or pricing. The termination of certain Reference Rates presents risks to the Funds. At this time, it is not possible to exhaustively identify or predict the effect of any such changes, any establishment of alternative Reference Rates or any other reforms to Reference Rates that may be enacted in the United Kingdom or elsewhere. In addition, in connection with supervisory guidance from U.S. regulators, some U.S. regulated entities have ceased to enter into most new LIBOR contracts since January 1, 2022. The elimination of a Reference Rate or any other changes or reforms to the determination or supervision of Reference Rates may affect the value, liquidity or return on certain Fund investments and may result in costs incurred in connection with closing out positions and entering into new trades, adversely impacting a Fund’s overall financial condition or results of operations.

Events such as natural disasters, pandemics, epidemics, and social unrest in one country, region, or financial market may adversely impact issuers in a different country, region or financial market. Furthermore, the occurrence of, among other events, natural or man-made disasters, severe weather or geological events, fires, floods, earthquakes, outbreaks of disease (such as COVID-19, avian influenza or H1N1/09), epidemics, pandemics, malicious acts, cyber-attacks, terrorist acts or the occurrence of climate change, may also adversely impact the performance of a Fund. Such events could adversely impact issuers, markets and economies over the short- and long-term, including in ways that cannot necessarily be foreseen. A Fund could be negatively impacted if the value of a portfolio holding were harmed by such political or economic conditions or events. Moreover, such negative political and economic conditions and events could disrupt the processes necessary for a Fund’s operations. In addition, governmental and quasi-governmental organizations have taken a number of unprecedented actions designed to support the markets. Such conditions, events and actions may result in greater market risk.

Repurchase Agreements

Repurchase agreements may be entered into with domestic or foreign banks or with any member firm of FINRA, or any affiliate of a member firm that is a primary dealer in U.S. government securities. Each repurchase agreement counterparty must meet the minimum credit quality requirements applicable to the respective Fund generally and meet any other appropriate counterparty criteria as determined by the Fund’s Subadvisor and/or the Advisor, as applicable,. The minimum credit quality requirements are those applicable to a Fund’s purchase of securities generally such that if a Fund is permitted to only purchase securities which are rated investment-grade (or the equivalent if unrated), the Fund could only enter into repurchase agreements with counterparties that have debt outstanding that is rated investment-grade (or the equivalent if unrated). In a repurchase agreement, a Fund buys a security at one price and simultaneously agrees to sell it back at a higher price. Such agreements must be adequately collateralized to cover the counterparty’s obligation to the Fund to close out the repurchase agreement. The securities will be regularly monitored to ensure that the collateral is adequate. In the event of the bankruptcy of the seller or the failure of the seller to repurchase the securities as agreed, the Fund could suffer losses, including loss of interest on or principal of the securities and costs associated with delay and enforcement of the repurchase agreement.

Restricted Securities

Restricted securities are securities acquired in an unregistered, private sale from the issuing company or from an affiliate of the issuer. Restricted securities would be required to be registered under the Securities Act of 1933 (the “1933 Act”) prior to distribution to the general public, but they may be eligible for resale to “qualified institutional buyers” under Rule 144A under the 1933 Act. It may be expensive or difficult for a Fund to dispose of restricted securities in the event that registration is required or an eligible purchaser cannot be found. Although certain of these securities may be readily sold, others may be illiquid, and their sale may involve substantial delays and additional costs.

Reverse Repurchase Agreements

The Fund may enter into reverse repurchase agreements with banks for temporary or emergency purposes. The Fund may enter into reverse repurchase agreements with banks and broker-dealers to the extent permitted by the Fund’s restrictions on borrowing. A reverse repurchase agreement involves the sale of a portfolio security by the Fund, coupled with an agreement to repurchase the security at a specified time and price. During the reverse repurchase agreement, the Fund continues to receive principal and interest payments on the underlying securities. The use of repurchasing agreements involves leverage. Leveraging may exaggerate the effect on the Fund’s net asset value of any increase

Investment Policies

Reverse Repurchase
Agreements — Continued

or decrease in the market value of the Fund’s portfolio. Money borrowed for leveraging will be subject to interest costs, which may or may not be recovered by appreciation of the securities purchased; and in certain cases, interest costs may exceed the return received on the securities purchased. An increase in interest rates could reduce or eliminate the benefits of leverage and could reduce the net asset value of the Fund’s shares.

Rights and Warrants

Rights represent a privilege offered to holders of record of issued securities to subscribe (usually on a pro rata basis) for additional securities of the same class, of a different class or of a different issuer. Warrants are options to buy a stated number of shares of common stock at a specified price at any time during the life of the warrant. The holders of rights and warrants have no voting rights, receive no dividends and have no ownership rights with respect to the assets of the issuer. The value of a right or warrant may not necessarily change with the value of the underlying securities. Rights and warrants cease to have value if they are not exercised prior to their expiration date. Investments in rights and warrants are thus speculative and may result in a total loss of the money invested.

LOW EXERCISE PRICE WARRANT (“LEPW”)

Harbor Global Leaders Fund may invest in LEPWs to seek to gain economic exposure to markets where holding an underlying security is not feasible. Harbor Global Leaders Fund may invest up to 20% of its net assets in LEPWs. A LEPW is a type of warrant with an exercise price that is very low relative to the market price of the underlying instrument at the time of issue (e.g., one cent or less). The buyer of a LEPW effectively pays the full value of the underlying common stock at the outset. As in the case of any exercise of warrants, there may be a time delay between the time a holder of LEPWs gives instructions to exercise and the time the price of the common stock relating to exercise or the settlement date is determined, during which time the price of the underlying security could change significantly. In addition, the exercise or settlement date of the warrants may be affected by certain market disruption events, such as difficulties relating to the exchange of a local currency into U.S. Dollars, the imposition of capital controls by a local jurisdiction or changes in the laws relating to foreign investments. These events could lead to a change in the exercise date or settlement currency of the warrants, or postponement of the settlement date. In some cases, if the market disruption events continue for a certain period of time, the warrants may become worthless resulting in a total loss of the purchase price of the warrants.

Because of its low exercise price, a LEPW is virtually certain to be exercised and the value and performance of its intrinsic value is effectively identical to that of the underlying security. These features are designed to allow participation in the performance of a security where there are legal or financial obstacles to purchasing the underlying security directly. If the LEPW is cash-settled, the buyer profits to the same extent as with a direct holding in the underlying security, but without having to transact in it.

Securities Lending

The Fund may seek to increase its income by lending portfolio securities. Under present regulatory policies, loans may be made only to financial institutions, such as broker-dealers, and are required to be secured continuously by collateral in cash or liquid assets. Such collateral will be maintained on a current basis at an amount at least equal to the market value of the securities loaned. The Fund would have the right to call a loan and obtain the securities loaned at any time on five days’ notice. For the duration of a loan, the Fund would continue to receive the equivalent of the interest or dividends paid by the issuer on the securities loaned and would also receive compensation from the investment of the collateral. The Fund would not, however, have the right to vote any securities having voting rights during the existence of the loan. In the event of an important vote to be taken among holders of the securities or of the giving or withholding of their consent on a material matter affecting the investment, the Fund would call the loan. As with other extensions of credit, there are risks of delay in recovery or loss of rights in the collateral should the borrower of the securities fail financially. However, the loans would be made only to firms deemed by the Advisor to be of good standing, and when, in the judgment of the Advisor, the consideration that can be earned currently from securities loans of this type justifies the attendant risk. If the Advisor decides to make securities loans, it is intended that the value of the securities loaned would not exceed 33⅓% of the value of the total assets of the Fund.

Short Sales

The Fund may engage in short sales of securities to: (i) offset potential declines in long positions in similar securities, (ii) increase the flexibility of the Fund; (iii) for investment return; (iv) as part of a risk arbitrage strategy; and (v) as part of its overall portfolio management strategies involving the use of derivative instruments. A short sale is a transaction in which a Fund sells a security it does not own in anticipation that the market price of that security will decline.

When a Fund makes a short sale, it will often borrow the security sold short and deliver it to the broker-dealer through which it made the short sale as collateral for its obligation to deliver the security upon conclusion of the sale. In connection with short sales of securities, the Fund may pay a fee to borrow securities or maintain an arrangement with a broker to borrow securities and is often obligated to pay over any accrued interest and dividends on such borrowed securities.

Investment Policies

Short Sales — Continued

If the price of the security sold short increases between the time of the short sale and the time that the Fund replaces the borrowed security, the Fund will incur a loss; conversely, if the price declines, the Fund will realize a capital gain. Any gain will be decreased, and any loss increased, by the transaction costs described above. The successful use of short selling may be adversely affected by imperfect correlation between movements in the price of the security sold short and the securities being hedged.

The Funds may invest pursuant to a risk arbitrage strategy to take advantage of a perceived relationship between the value of two securities. Frequently, a risk arbitrage strategy involves the short sale of a security.

Small to Mid Companies

Smaller companies may (i) be subject to more volatile market movements than securities of larger, more established companies; (ii) have limited product lines, markets or financial resources; and (iii) depend upon a limited or less experienced management group. The securities of smaller companies may be traded only on the over-the-counter market or on a regional securities exchange and may not be traded daily or in the volume typical of trading on a national securities exchange. Disposition by the Fund of a smaller company’s securities in order to meet redemptions may require the Fund to sell these securities at a discount from market prices, over a longer period of time or during periods when disposition is not desirable. These risks are more significant in the context of smaller companies.

Sovereign Debt Obligations

Sovereign debt obligations, such as foreign government debt or foreign treasury bills, involve special risks that are not present in corporate debt obligations. The foreign issuer of the sovereign debt or the foreign governmental authorities that control the repayment of the debt may be unable or unwilling to repay principal or interest when due, and a Fund may have limited or no recourse in the event of a default. For example, there may be no bankruptcy or similar proceedings through which all or part of the sovereign debt that a governmental entity has not repaid may be collected. During periods of economic uncertainty, the market prices of sovereign debt, and the Fund’s net asset value, to the extent it invests in such securities, may be more volatile than prices of debt obligations of U.S. issuers, and may result in illiquidity. In the past, certain foreign countries have encountered difficulties in servicing their debt obligations, withheld payments of principal and interest and declared moratoria on the payment of principal and interest on their sovereign debt. As a holder of government sovereign debt, a Fund may be requested to participate in the restructuring of sovereign indebtedness, including the rescheduling of debt payments and the extension of further loans to government debtors, which may adversely affect the Fund. There can be no assurance that such restructuring will result in the repayment of all or part of the debt. Certain emerging market countries have experienced difficulty in servicing their sovereign debt on a timely basis, which has led to defaults and the restructuring of certain indebtedness. Harbor Core Bond Fund and Harbor Core Plus Fund may only invest in U.S. dollar denominated sovereign debt obligations.

A sovereign debtor’s willingness or ability to repay principal and pay interest in a timely manner may be affected by, among other factors, its cash flow situation, the extent of its foreign currency reserves, the availability of sufficient foreign exchange, the relative size of the debt service burden, the sovereign debtor’s policy toward principal international lenders and local political constraints. Sovereign debtors may also be dependent on expected disbursements from foreign governments, multilateral agencies and other entities to reduce principal and interest arrearages on their debt. The failure of a sovereign debtor to implement economic reforms, achieve specified levels of economic performance or repay principal or interest when due may result in the cancellation of third party commitments to lend funds to the sovereign debtor, which may further impair such debtor’s ability or willingness to service its debts.

The recent global economic crisis brought several European economies close to bankruptcy and many other economies into recession and weakened the banking and financial sectors of many countries. For example, in the past several years the governments of countries in the European Union experienced large public budget deficits, the effects of which remain unknown and may slow the overall recovery of European economies from the recent global economic crisis. In addition, due to large public deficits, some European countries may be dependent on assistance from other European governments and institutions or multilateral agencies and offices. Such assistance may require a country to implement reforms or reach a certain level of performance. If a country receiving assistance fails to reach certain objectives or receives an insufficient level of assistance it could cause a deep economic downturn and could significantly affect the value of a Fund’s investments in that country’s sovereign debt obligations.

Special Purpose Acquisition Companies

The Fund may invest in stock, warrants, and other securities of special purpose acquisition companies (“SPACs”) or similar special purpose entities that pool funds to seek potential acquisition opportunities. A SPAC is typically a publicly traded company that raises funds through an initial public offering (“IPO”) for the purpose of acquiring or merging with another company to be identified subsequent to the SPAC’s IPO. The securities of a SPAC are often issued in “units” that include one share of common stock and one right or warrant (or partial right or warrant) conveying the right to purchase additional shares or partial shares. Unless and until a transaction is completed, a SPAC generally

Investment Policies

Special Purpose
Acquisition Companies —
Continued

invests its assets (less a portion retained to cover expenses) in U.S. government securities, money market funds and similar investments. If an acquisition or merger that meets the requirements for the SPAC is not completed within a pre-established period of time, the invested funds are returned to the SPAC’s shareholders, less certain permitted expenses, and any rights or warrants issued by the SPAC will expire worthless.

Because SPACs and similar entities are in essence blank check companies without operating history or ongoing business other than seeking acquisitions, the value of their securities is particularly dependent on the ability of the entity’s management to identify and complete a profitable acquisition. An investment in a SPAC is subject to a variety of risks, including that (i) a portion of the monies raised by the SPAC for the purpose of effecting an acquisition or merger may be expended prior to the transaction for payment of taxes and other expenses; (ii) prior to any acquisition or merger, a SPAC’s assets are typically invested in U.S. government securities, money market funds and similar investments whose returns or yields may be significantly lower than those of the Fund’s other investments; (iii) the Fund generally will not receive significant income from its investments in SPACs (both prior to and after any acquisition or merger) and, therefore, the Fund’s investments in SPACs will not significantly contribute to the Fund’s distributions to shareholders; (iv) attractive acquisition or merger targets may become scarce if the number of SPACs seeking to acquire operating businesses increases; (v) an attractive acquisition or merger target may not be identified at all, in which case the SPAC will be required to return any remaining monies to shareholders; (vi) if an acquisition or merger target is identified, the Fund may elect not to participate in, or vote to approve, the proposed transaction or the Fund may be required to divest its interests in the SPAC, due to regulatory or other considerations, in which case the Fund may not reap any resulting benefits; (vii) the warrants or other rights with respect to the SPAC held by the Fund may expire worthless or may be redeemed by the SPAC at an unfavorable price; (viii) any proposed merger or acquisition may be unable to obtain the requisite approval, if any, of SPAC shareholders and/or antitrust and securities regulators; (ix) under any circumstances in which the Fund receives a refund of all or a portion of its original investment (which typically represents a pro rata share of the proceeds of the SPAC’s assets, less any applicable taxes), the returns on that investment may be negligible, and the Fund may be subject to opportunity costs to the extent that alternative investments would have produced higher returns; (x) to the extent an acquisition or merger is announced or completed, shareholders who redeem their shares prior to that time may not reap any resulting benefits; (xi) the Fund may be delayed in receiving any redemption or liquidation proceeds from a SPAC to which it is entitled; (xii) an acquisition or merger once effected may prove unsuccessful and an investment in the SPAC may lose value; (xiii) an investment in a SPAC may be diluted by additional later offerings of interests in the SPAC or by other investors exercising existing rights to purchase shares of the SPAC; (xiv) only a thinly traded market for shares of or interests in a SPAC may develop, or there may be no market at all, leaving the Fund unable to sell its interest in a SPAC or to sell its interest only at a price below what the Fund believes is the SPAC interest’s intrinsic value; and (xv) the values of investments in SPACs may be highly volatile and may depreciate significantly over time.

Structured Products

Structured products include instruments such as credit-linked securities, commodity-linked notes and structured notes, which are potentially high-risk derivatives. For example, a structured product may combine a traditional stock, bond, or commodity with an option or forward contract. Generally, the principal amount, amount payable upon maturity or redemption, or interest rate of a structured product is tied (positively or negatively) to the price of some commodity, currency or securities index or another interest rate or some other economic factor (each a “benchmark”). The interest rate or (unlike most fixed income securities) the principal amount payable at maturity of a structured product may be increased or decreased, depending on changes in the value of the benchmark. An example of a structured product could be a bond issued by an oil company that pays a small base level of interest with additional interest that accrues in correlation to the extent to which oil prices exceed a certain predetermined level. Such a structured product would be a combination of a bond and a call option on oil.

Structured products can be used as an efficient means of pursuing a variety of investment goals, including currency hedging, duration management, and increased total return. Structured products may not bear interest or pay dividends. The value of a structured product or its interest rate may be a multiple of a benchmark and, as a result, may be leveraged and move (up or down) more steeply and rapidly than the benchmark. These benchmarks may be sensitive to economic and political events, such as commodity shortages and currency devaluations, which cannot be readily foreseen by the purchaser of a structured product. Under certain conditions, the redemption value of a structured product could be zero. Thus, an investment in a structured product may entail significant market risks that are not associated with a similar investment in a traditional, U.S. dollar-denominated bond that has a fixed principal amount and pays a fixed rate or floating rate of interest. The purchase of

Investment Policies

Structured Products —
Continued

structured products also exposes a Fund to the credit risk of the issuer of the structured product. These risks may cause significant fluctuations in the net asset value of the Fund. Harbor Core Bond Fund and Harbor Core Plus Fund will not invest more than 5% of their respective total assets in a combination of credit-linked securities or commodity-linked notes.

CREDIT-LINKED SECURITIES

Credit-linked securities are issued by a limited purpose trust or other vehicle that, in turn, invests in a basket of derivative instruments, such as credit default swaps, interest rate swaps and other securities, in order to provide exposure to certain high yield or other fixed income markets. For example, a Fund may invest in credit-linked securities as a cash management tool in order to gain exposure to the high yield markets and/or to remain fully invested when more traditional income producing securities are not available. Like an investment in a bond, investments in credit-linked securities represent the right to receive periodic income payments (in the form of distributions) and payment of principal at the end of the term of the security. However, these payments are conditioned on the trust’s receipt of payments from, and the trust’s potential obligations to, the counterparties to the derivative instruments and other securities in which the trust invests. For instance, the trust may sell one or more credit default swaps, under which the trust would receive a stream of payments over the term of the swap agreements provided that no event of default has occurred with respect to the referenced debt obligation upon which the swap is based. If a default occurs, the stream of payments may stop and the trust would be obligated to pay the counterparty the par (or other agreed upon) value of the referenced debt obligation. This, in turn, would reduce the amount of income and principal that a Fund would receive as an investor in the trust. A Fund’s investments in these instruments are indirectly subject to the risks associated with derivative instruments, including, among others, credit risk, default or similar event risk, counterparty risk, interest rate risk, leverage risk and management risk. It is expected that the securities will be exempt from registration under the 1933 Act. Accordingly, there may be no established trading market for the securities and they may constitute illiquid investments.

STRUCTURED NOTES AND INDEXED SECURITIES

Structured notes are derivative debt instruments, the interest rate or principal of which is determined by an unrelated indicator (for example, a currency, security, commodity or index thereof). The terms of the instrument may be “structured” by the purchaser and the borrower issuing the note. Indexed securities may include structured notes as well as securities other than debt securities, the interest rate or principal of which is determined by an unrelated indicator. Indexed securities may include a multiplier that multiplies the indexed element by a specified factor and, therefore, the value of such securities may be very volatile. The terms of structured notes and indexed securities may provide that in certain circumstances no principal is due at maturity, which may result in a loss of invested capital. Structured notes and indexed securities may be positively or negatively indexed, so that appreciation of the unrelated indicator may produce an increase or a decrease in the interest rate or the value of the structured note or indexed security at maturity may be calculated as a specified multiple of the change in the value of the unrelated indicator. Therefore, the value of such notes and securities may be very volatile. Structured notes and indexed securities may entail a greater degree of market risk than other types of debt securities because the investor bears the risk of the unrelated indicator. Structured notes or indexed securities also may be more volatile, less liquid, and more difficult to accurately price than less complex securities and instruments or more traditional debt securities. To the extent a Fund invests in these notes and securities, however, each Fund’s Subadvisor and/or the Advisor, as applicable, will analyze these notes and securities in its overall assessment of the effective duration of the Fund’s holdings in an effort to monitor the Fund’s interest rate risk.

Certain issuers of structured products may be deemed to be investment companies as defined in the Investment Company Act. As a result, a Fund’s investments in these structured products may be subject to limits applicable to investments in investment companies and may be subject to restrictions contained in the Investment Company Act.

EQUITY-LINKED SECURITIES AND EQUITY-LINKED NOTES

Harbor Global Leaders Fund may invest a portion of their respective assets in equity-linked securities. Equity-linked securities are privately issued derivative securities that have a return component based on the performance of a single stock, a basket of stocks, or a stock index. Equity-linked securities are often used for many of the same purposes as, and share many of the same risks with, other derivative instruments.

An equity-linked note is a note, typically issued by a company or financial institution, whose performance is tied to a single stock, a basket of stocks, or a stock index. Generally, upon the maturity of the note, the holder receives a return of principal based on the capital appreciation of the linked securities. The terms of an equity-linked note may also provide for the periodic interest payments to holders at either a fixed or floating rate. Because the notes are equity linked, they may return a lower amount

Investment Policies

Structured Products —
Continued

at maturity due to a decline in value of the linked security or securities. To the extent a Fund invests in equity-linked notes issued by foreign issuers, it will be subject to the risks associated with the debt securities of foreign issuers and with securities denominated in foreign currencies. Equity-linked notes are also subject to default risk and counterparty risk.

Trust-Preferred Securities

Trust-preferred securities, also known as trust-issued securities, are securities that have characteristics of both debt and equity instruments. Generally, trust-preferred securities are cumulative preferred stocks issued by a trust that is created by a financial institution, such as a bank holding company. The financial institution typically creates the trust with the objective of increasing its capital by issuing subordinated debt to the trust in return for cash proceeds that are reflected on its balance sheet. The primary asset owned by the trust is the subordinated debt issued to the trust by the financial institution. The financial institution makes periodic interest payments on the debt as discussed further below. The financial institution will subsequently own the trust’s common securities, which may typically represent a small percentage of the trust’s capital structure. The remainder of the trust’s capital structure typically consists of trust-preferred securities that are sold to investors. The trust uses the sales proceeds to purchase the subordinated debt issued by the financial institution. The financial institution uses the proceeds from the subordinated debt sale to increase its capital, while the trust receives periodic interest payments from the financial institution for holding the subordinated debt. The trust uses the interest received to make dividend payments to the holders of the trust-preferred securities. The dividends are generally paid on a quarterly basis and are often higher than other dividends potentially available on the financial institution’s common stocks. The interests of the holders of the trust-preferred securities are senior to those of common stockholders in the event that the financial institution is liquidated, although their interests are typically subordinated to those of holders of other debt issued by the institution.

The primary benefit for the financial institution in using this particular structure is that the trust-preferred securities issued by the trust are treated by the financial institution as debt securities for tax purposes (as a consequence of which the expense of paying interest on the securities is tax deductible), but are treated as more desirable equity securities for purposes of the calculation of capital requirements. In certain instances, the structure involves more than one financial institution and thus, more than one trust. In such a pooled offering, an additional separate trust may be created. This trust will issue securities to investors and use the proceeds to purchase the trust-preferred securities issued by other trust subsidiaries of the participating financial institutions. In such a structure, the trust-preferred securities held by the investors are backed by other trust-preferred securities issued by the trust subsidiaries.

The risks associated with trust-preferred securities typically include the financial condition of the financial institution(s), as the trust typically has no business operations other than holding the subordinated debt issued by the financial institution(s) and issuing the trust-preferred securities and common stock backed by the subordinated debt. If a financial institution is financially unsound and defaults on interest payments to the trust, the trust will not be able to make dividend payments to holders of the trust-preferred securities such as the Funds.

U.S. Government Securities

Total U.S. public debt as a percentage of gross domestic product has grown since the beginning of the 2008 financial downturn. U.S. government agencies project that the U.S. will continue to maintain high debt levels in the near future. Although high debt levels do not necessarily indicate or cause economic problems, they may create certain systemic risks if sound debt management practices are not implemented.

A high national debt level may increase market pressures to meet government funding needs, which may drive debt cost higher and cause the U.S. Treasury to sell additional debt with shorter maturity periods, thereby increasing refinancing risk. A high national debt also raises concerns that the U.S. government will be unable to pay investors at maturity. Unsustainable debt levels could cause declines in currency valuations and prevent the U.S. government from implementing effective fiscal policy.

On August 5, 2011, S&P lowered its long-term sovereign credit rating on the U.S. In explaining the downgrade, the S&P cited, among other reasons, controversy over raising the statutory debt ceiling and growth in public spending. The market prices and yields of securities supported by the full faith and credit of the U.S. government may be adversely affected by any actual or potential downgrade in the rating of U.S. long-term sovereign debt and such a downgrade may lead to increased interest rates and volatility.

Securities issued by U.S. government agencies or government-sponsored enterprises may not be guaranteed by the U.S. Treasury. Ginnie Mae, a wholly owned U.S. government corporation, is authorized to guarantee, with the full faith and credit of the U.S. government, the timely payment of principal and interest on securities issued by institutions approved by Ginnie Mae and backed by pools of mortgages insured by the Federal Housing Administration or guaranteed by the Department of Veterans Affairs. Government-related guarantors (i.e., not backed by the full faith and credit of the U.S. government) include Fannie Mae and Freddie Mac. On September 7, 2008, the Federal Housing Finance Agency

Investment Policies

U.S. Government
Securities — Continued

(“FHFA”) placed Fannie Mae and Freddie Mac in conservatorship, while the Treasury agreed to purchase preferred stock as needed to ensure that both Fannie Mae and Freddie Mac maintain a positive net worth (guaranteeing up to $100 billion for each entity). As a consequence, certain fixed-income securities of Fannie Mae and Freddie Mac have more explicit U.S. government support. No assurance can be given as to whether the U.S. government will continue to support Fannie Mae and Freddie Mac. In addition, the future of Fannie Mae and Freddie Mac is uncertain because Congress has been considering proposals as to whether Fannie Mae and Freddie Mac should be nationalized, privatized, restructured or eliminated altogether. Fannie Mae and Freddie Mac are also the subject of continuing legal actions and investigations which may have an adverse effect on these entities.

In addition to securities issued by Ginnie Mae, Fannie Mae, Freddie Mac, and FHFA, U.S. government securities include obligations of federal home loan banks and federal land banks, Federal Farm Credit Banks Consolidated Systemwide Bonds and Notes, securities issued or guaranteed as to principal or interest by Tennessee Valley Authority and other similar securities as may be interpreted from time to time.

Variable and Floating Rate Securities

Variable and floating rate securities provide for a periodic adjustment in the interest rate paid on the obligations. The terms of such obligations must provide that interest rates are adjusted periodically based upon some appropriate interest rate adjustment index as provided in the respective obligations. The adjustment intervals may be regular, and range from daily up to annually, or may be event based, such as a change in the prime rate. Variable and floating rate securities that cannot be disposed of promptly within seven days and in the usual course of business without taking a reduced price will be treated as illiquid and subject to the limitation on investments in illiquid securities.

Variable Interest Entities

A Fund’s investments in emerging markets may also include investments in U.S.- or Hong Kong-listed issuers that have entered into contractual relationships with a China-based business and/or individuals/entities affiliated with the business structured as a variable interest entity (“VIE”). Instead of directly owning the equity interests in a Chinese company, the listed company has contractual arrangements with the Chinese company, which are expected to provide the listed company with exposure to the China-based company. These arrangements are often used because of Chinese governmental restrictions on non-Chinese ownership of companies in certain industries in China. By entering into contracts with the listed company that sells shares to U.S. investors, the China-based companies and/or related individuals/entities indirectly raise capital from U.S. investors without distributing ownership of the China-based companies to U.S. investors.

Even though the listed company does not own any equity in the China-based company, the listed company expects to exercise power over and obtain economic rights from the China-based company based on the contractual arrangements. All or most of the value of an investment in these companies depends on the enforceability of the contracts between the listed company and the China-based VIE. If the parties to the contractual arrangements do not meet their obligations as intended or there are effects on the enforceability of these arrangements from changes in Chinese law or practice, the listed company may lose control over the China-based company, and investments in the listed company’s securities may suffer significant economic losses.

The contractual arrangements permit the listed issuer to include the financial results of the China-based VIE as a consolidated subsidiary. The listed company often is organized in a jurisdiction other than the United States or China (e.g., the Cayman Islands), which likely will not have the same disclosure, reporting, and governance requirements as the United States.

Risks associated with such investments include the risk that the Chinese government could determine at any time and without notice that the underlying contractual arrangements on which control of the VIE is based violate Chinese law, which may result in a significant loss in the value of an investment in a listed company that uses a VIE structure; that a breach of the contractual agreements between the listed company and the China-based VIE (or its officers, directors, or Chinese equity owners) will likely be subject to Chinese law and jurisdiction, which raises questions about whether and how the listed company or its investors could seek recourse in the event of an adverse ruling as to its contractual rights; and that investments in the listed company may be affected by conflicts of interest and duties between the legal owners of the China-based VIE and the stockholders of the listed company, which may adversely impact the value of investments of the listed company.

Investment Restrictions

Fundamental Investment Restrictions

The following restrictions may not be changed with respect to a Fund without the approval of the majority of outstanding voting securities of the Fund (which, under the Investment Company Act and the rules thereunder and as used in the Prospectuses and this Statement of Additional Information, means the lesser of (1) 67% of the shares of that Fund present at a meeting if the holders of more than 50% of the outstanding shares of that Fund are present in person or by proxy, or (2) more than 50% of the outstanding shares of that Fund). Investment restrictions that involve a maximum percentage of securities or assets shall not be considered to be violated unless an excess over the percentage occurs immediately after, and is caused by, an acquisition or encumbrance of securities or assets of, or borrowings by or on behalf of, each Fund with the exception of borrowings permitted by Investment Restriction (2) listed below.

A Fund may not:

(1)

with respect to 75% of the total assets of the Fund, purchase the securities of any issuer if such purchase would cause more than 5% of the Fund’s total assets (taken at market value) to be invested in the securities of such issuer, or purchase securities of any issuer if such purchase would cause more than 10% of the total voting securities of such issuer to be held by the Fund, except obligations issued or guaranteed by the U.S. government, its agencies or instrumentalities and with respect to the Harbor Convertible Securities Fund, shares of other investment companies;

(2)

borrow money, except to the extent permitted by, or to the extent not prohibited by, applicable law and any applicable exemptive relief;

(3)

act as underwriter of the securities issued by others, except to the extent that the purchase of securities in accordance with each Fund’s investment objective and policies directly from the issuer thereof and the later disposition thereof may be deemed to be underwriting;

(4)

invest 25% or more of its total assets in the securities of one or more issuers conducting their principal business activities in the same industry (excluding the U.S. government or any of its agencies or instrumentalities);

(5)

issue senior securities, except as permitted under the Investment Company Act, and except that Harbor Funds may issue shares of beneficial interest in multiple series or classes;

(6)

purchase, hold or deal in real estate, although the Fund may purchase and sell securities that are secured by real estate or interests therein, securities of real estate investment trusts and mortgage-related securities and may hold and sell real estate acquired by the Fund as a result of the ownership of securities;

(7)

(except for Harbor Convertible Securities Fund), invest in commodities or commodity contracts, except that each Fund may invest in currency and financial instruments and contracts that are commodities or commodity contracts that are not deemed to be prohibited commodities or commodities contracts for the purpose of this restriction. Harbor Convertible Securities Fund may not purchase or sell physical commodities unless acquired as a result of ownership of securities or other instruments; provided that this restriction shall not prohibit the Fund from purchasing or selling options, futures contracts and related options thereon, forward contracts, swaps, caps, floors, collars and any other financial instruments or from investing in securities or other instruments backed by physical commodities or as otherwise permitted by (i) the Investment Company Act, (ii) the rules and regulations promulgated by the SEC under the Investment Company Act, or (iii) an exemption or other relief applicable to the Fund from the provisions of the Investment Company Act; or

(8)

make loans to other persons, except to the extent permitted by, or to the extent not prohibited by, applicable law and any applicable exemptive relief.

Notwithstanding the investment policies and restrictions of each Fund, a Fund may invest its assets in an open-end management investment company with substantially the same investment objective, policies and restrictions as the Fund.

For purposes of fundamental investment restriction no. 4, each Fund will consider concentration to be the investment of more than 25% of the value of its total assets in any one industry. In addition, telephone companies are considered to be in a separate industry from water, gas or electric utilities; personal credit finance companies and business credit finance companies are deemed to be in separate industries; banks and insurance companies are deemed to be in separate industries; wholly owned finance companies are considered to be in the industry of their parents if their activities are primarily related to financing the activities of their parents; and privately issued mortgage-backed securities collateralized by mortgages insured or guaranteed by the U.S. government, its agencies or instrumentalities do not represent interests in any industry.

Investment Restrictions

Fundamental Investment
Restrictions — Continued

For purposes of fundamental investment restriction no. 7, each Fund interprets its policy with respect to the investment in commodities or commodity contracts to permit the Fund, subject to the Fund’s investment objectives and general investment policies (as stated in the Fund’s Prospectus and elsewhere in this Statement of Additional Information), to invest in commodity futures contracts and options thereon, commodity-related swap agreements, hybrid instruments, and other commodity-related derivative instruments.

From time to time, each Fund may voluntarily participate in actions (for example, rights offerings, conversion privileges, exchange offers, credit event settlements, etc.) where the issuer or counterparty offers securities or instruments to holders or counterparties, such as a Fund, and the acquisition is determined to be beneficial to Fund shareholders (“Voluntary Action”). Unless otherwise indicated, all percentage limitations on Fund investments (as stated throughout this Statement of Additional Information or in the Prospectuses) that are not (i) specifically included in the above section or (ii) imposed by the Investment Company Act, rules thereunder, the Code or related regulations (the “Elective Investment Restrictions”), will apply only at the time a transaction is entered into. For purposes of this policy, certain Non-Fundamental Investment Restrictions, as noted below, are also considered Elective Investment Restrictions. The percentage limitations and absolute prohibitions with respect to Elective Investment Restrictions are not applicable to a Fund’s acquisition of securities or instruments through a Voluntary Action.

Non-Fundamental Investment Restrictions

In addition to the investment restrictions and policies mentioned above, the Trustees of Harbor Funds have voluntarily adopted the following policies and restrictions, which are observed in the conduct of the affairs of the Funds. These represent intentions of the Trustees based upon current circumstances. They differ from fundamental investment policies because they may be changed or amended by action of the Trustees without prior notice to or approval of shareholders. Accordingly, each Fund may not:

(a)

purchase securities on margin, except for use of short-term credit necessary for clearance of purchases and sales of portfolio securities, but it may make margin deposits in connection with covered transactions in options, futures, options on futures and short positions. For purposes of this restriction, the posting of margin deposits or other forms of collateral in connection with swap agreements is not considered purchasing securities on margin;

(b)

make short sales of securities, except as permitted under the Investment Company Act;

(c)

invest more than 15% of the Fund’s net assets in illiquid investments; or

(d)

invest in other companies for the purpose of exercising control or management.

Trustees and Officers

The business and affairs of the Trust shall be managed by or under the direction of the Trustees, and they shall have all powers necessary or desirable to carry out that responsibility. The Trustees shall have full power and authority to take or refrain from taking any action and to execute any contracts and instruments that they may consider necessary or desirable in the management of the Trust. Any determination made by the Trustees in good faith as to what is in the interests of the Trust shall be conclusive. The Trustees serve on the Board of Trustees of Harbor Funds and Harbor ETF Trust.

Information pertaining to the Trustees and Officers of Harbor Funds is set forth below. The address of each Trustee and Officer is: [Name of Trustee or Officer] c/o Harbor Funds, 111 South Wacker Drive, 34th Floor, Chicago, IL 60606-4302.

Name (Age) Position(s) with Fund	Term of Office and Length of Time Served1	Principal Occupation(s) During Past Five Years	Number of Portfolios In Fund Complex Overseen By Trustee	Other Directorships Of Public Companies and Other Registered Investment Companies Held by Trustee During Past Five Years
INDEPENDENT TRUSTEES
Scott M. Amero (59) Trustee	Since 2014	Chairman (2015-2020) and Trustee (2011-Present), Rare (conservation nonprofit); Trustee, Root Capital (2022-Present); Trustee, The Nature Conservancy, Massachusetts Chapter (2018-Present); Trustee, Adventure Scientists (conservation nonprofit) (2020-Present); Vice Chairman and Global Chief Investment Officer, Fixed Income (2010), Vice Chairman and Global Chief Investment Officer, Fixed Income, and Co-Head, Fixed Income Portfolio Management (2007-2010), BlackRock, Inc. (publicly traded investment management firm).	27	None
Donna J. Dean (71) Trustee	Since 2010	Chief Investment Officer of the Rockefeller Foundation (a private foundation) (2001-2019).	27	None
Robert Kasdin (64) Trustee	Since 2014	Senior Vice President and Chief Operating Officer (2015-2022) and Chief Financial Officer (2018-2022), Johns Hopkins Medicine; Trustee and Member of the Finance Committee, National September 11 Memorial & Museum at the World Trade Center (2005-2019); Director, Apollo Commercial Real Estate Finance, Inc. (2014-Present); and Director, The Y in Central Maryland (2018-2022).	27	Director of Apollo Commercial Real Estate Finance, Inc. (2014- Present).
Kathryn L. Quirk (70) Trustee	Since 2017	Member, Board of Directors and Co-Chair, Governance Committee, Just World International Inc. (nonprofit) (2020 – Present); Vice President, Senior Compliance Officer and Head, U.S. Regulatory Compliance, Goldman Sachs Asset Management (2013-2017); Deputy Chief Legal Officer, Asset Management, and Vice President and Corporate Counsel, Prudential Insurance Company of America (2010-2012); Co-Chief Legal Officer, Prudential Investment Management, Inc., and Chief Legal Officer, Prudential Investments and Prudential Mutual Funds (2008-2012); Vice President and Corporate Counsel and Chief Legal Officer, Mutual Funds, Prudential Insurance Company of America, and Chief Legal Officer, Prudential Investments (2005-2008); Vice President and Corporate Counsel and Chief Legal Officer, Mutual Funds, Prudential Insurance Company of America (2004-2005); Member, Management Committee (2000-2002), General Counsel and Chief Compliance Officer, Zurich Scudder Investments, Inc. (1997-2002).	27	None
Douglas J. Skinner (61) Trustee	Since 2020	Professor of Accounting (2005-Present), Deputy Dean for Faculty (2015-2016, 2017-Present), Interim Dean (2016-2017), University of Chicago Booth School of Business.	27	None
Ann M. Spruill (69) Trustee	Since 2014	Partner (1993-2008), member of Executive Committee (1996-2008), Member Board of Directors (2002-2008), Grantham, Mayo, Van Otterloo & Co, LLC (private investment management firm) (with the firm since 1990); Member Investment Committee and Chair of Global Public Equities, Museum of Fine Arts, Boston (2000-2020); and Trustee, Financial Accounting Foundation (2014-2020).	27	None
Landis Zimmerman (64) Trustee	Since 2022	Independent, non-fiduciary advisor, Gore Creek Asset Management (2006- Present); Member, Japan Science and Technology Agency Investment Advisory Committee (2021-Present); Chief Investment Officer of the Howard Hughes Medical Institute (2004-2021).	27	None

Trustees and Officers

Name (Age) Position(s) with Fund	Term of Office and Length of Time Served1	Principal Occupation(s) During Past Five Years	Number of Portfolios In Fund Complex Overseen By Trustee	Other Directorships Of Public Companies and Other Registered Investment Companies Held by Trustee During Past Five Years
INTERESTED TRUSTEE
Charles F. McCain (53)* Chairman, Trustee and President	Since 2017	Chief Executive Officer (2017-Present), Director (2007-Present), President and Chief Operating Officer (2017), Executive Vice President and General Counsel (2004-2017), and Chief Compliance Officer (2004-2014), Harbor Capital Advisors, Inc.; Director and Chairperson (2019-Present), Harbor Trust Company, Inc.; Director (2007-Present) and Chief Compliance Officer (2004-2017), Harbor Services Group, Inc.; Chief Executive Officer (2017- Present), Director (2007-Present), Chief Compliance Officer and Executive Vice President (2007-2017), Harbor Funds Distributors, Inc.; Chief Compliance Officer, Harbor Funds (2004-2017); and Chairman, President and Trustee, Harbor ETF Trust (2021-Present).	27	None

Name (Age) Position(s) with Fund	Term of Office and Length of Time Served1	Principal Occupation(s) During Past Five Years
FUND OFFICERS NOT LISTED ABOVE**
Erik D. Ojala (48) Chief Compliance Officer	Since 2017	Executive Vice President and General Counsel (2017-Present), Secretary (2010-Present) and Chief Compliance Officer (2022-2023); Senior Vice President and Associate General Counsel (2007-2017), Harbor Capital Advisors, Inc.; Director and Secretary (2019-Present) and Chief Compliance Officer (2022-2023), Harbor Trust Company, Inc.; Director, Executive Vice President (2017-Present) and Chief Compliance Officer (2017-2021, 2022-Present), Harbor Funds Distributors, Inc.; Director (2017-Present), Assistant Secretary (2014-Present) and Chief Compliance Officer (2022-2023), Harbor Services Group, Inc.; AML Compliance Officer (2010-2017) and Vice President and Secretary (2007-2017), Harbor Funds; and Chief Compliance Officer, Harbor ETF Trust (2021-Present).
Richard C. Sarhaddi (49) Vice President	Since 2023	Senior Vice President and Chief Compliance Officer (2023 – Present), Harbor Capital Advisors, Inc., Harbor Services Group, Inc. and Harbor Trust Company, Inc.; Vice President, Harbor Funds (2023-Present); Vice President, Harbor ETF Trust (2023-Present); Chief Compliance Officer (2022-2023), Vanguard Personalized Indexing Management, LLC; Head of U.S. Direct Investor Advice Compliance, (2018 – 2023), The Vanguard Group, Inc.; Director & Lead Counsel, Digital Services / Intelligent Portfolios (2015 – 2018), Charles Schwab & Co., Inc.
Kristof M. Gleich (43) Vice President	Since 2019	President (2018-Present) and Chief Investment Officer (2020), Harbor Capital Advisors, Inc.; Director, Vice Chairperson, President (2019-Present) and Chief Investment Officer (2020-Present), Harbor Trust Company, Inc.; Vice President, Harbor Funds (2019-Present); Vice President, Harbor ETF Trust (2021-Present); and Managing Director, Global Head of Manager Selection (2010-2018), JP Morgan Chase & Co.
Gregg M. Boland (59) Vice President and AML Compliance Officer	Since 2022	Executive Vice President (2020-Present), Vice President (2019-2020), Harbor Capital Advisors, Inc.; President (2019-Present), Senior Vice President – Operations (2016-2019), and Vice President – Operations (2007-2015), Harbor Services Group, Inc.; Senior Vice President, AML Compliance Officer, and OFAC Officer (2019-Present), Harbor Funds Distributors, Inc.; Vice President, Harbor Funds (2019-Present) and Vice President, Harbor ETF Trust (2021-Present).
Diana R. Podgorny (43) Secretary	Since 2018	Senior Vice President and Deputy General Counsel (2022-Present), Senior Vice President and Assistant General Counsel (2020-2022), and Vice President and Assistant General Counsel (2017-2020), Harbor Capital Advisors, Inc.; Director and Vice President (2020-Present), Harbor Trust Company, Inc.; Secretary, Harbor Funds (2018-Present); and Secretary, Harbor ETF Trust (2021-Present).
Lana M. Lewandowski (43) Assistant Secretary	Since 2017	Vice President and Compliance Director (2022-Present), Legal & Compliance Manager (2016-2022) and Legal Specialist (2012-2015), Harbor Capital Advisors, Inc.; AML Compliance Officer (2017-2022) and Assistant Secretary (2017-Present), Harbor Funds; and AML Compliance Officer (2021-2022) and Assistant Secretary (2021-Present), Harbor ETF Trust.
John M. Paral (54) Treasurer	Since 2022	Senior Vice President – Fund Administration and Analysis (2022-Present), Director of Fund Administration and Analysis (2017-2022), Vice President (2012-2022) and Financial Reporting Manager (2007-2017), Harbor Capital Advisors, Inc.; Treasurer (2022-Present) and Assistant Treasurer (2013-2022), Harbor Funds; and Treasurer (2022-Present) and Assistant Treasurer (2021-2022), Harbor ETF Trust.
Lora A. Kmieciak (58) Vice President	Since 2022	Executive Vice President and Chief Financial Officer (2022-Present), Senior Vice President – Fund Administration and Analysis (2017-2022) and Senior Vice President - Business Analysis (2015-2017), Harbor Capital Advisors, Inc.; Vice President (2020 – 2022) and Director (2022-Present), Harbor Trust Company, Inc.; Assistant Treasurer (2017-2022) and Vice President (2022-Present), Harbor Funds; and Assistant Treasurer (2021-2022) and Vice President (2022-Present), Harbor ETF Trust.
Diane J. Johnson (57) Vice President	Since 2022	Vice President (2022-Present) and Tax Director (2009-Present), Harbor Capital Advisors, Inc.; Vice President (2022-Present), Harbor Funds; and Vice President (2022-Present), Harbor ETF Trust.

1	Each Trustee serves for an indefinite term, until his or her successor is elected. Each Officer is elected annually.
*	Mr. McCain is deemed an “Interested Trustee” due to his affiliation with the Advisor and Distributor of Harbor Funds.
**	Officers of the Funds are “interested persons” as defined in the Investment Company Act.

Trustees and Officers

Additional Information About the Trustees

The following sets forth information about each Trustee’s specific experience, qualifications, attributes and/or skills that serve as the basis for the person’s continued service in that capacity. These encompass a variety of factors, including, but not limited to, their financial and investment experience, academic background, willingness to devote the time and attention needed to serve, and past experience as Trustees of the Trust, other investment companies, operating companies or other types of entities. No one factor is controlling, either with respect to the group or any individual. As discussed further below, the evaluation of the qualities and ultimate selection of persons to serve as Independent Trustees is the responsibility of the Trust’s Nominating Committee, consisting solely of Independent Trustees. The inclusion of a particular factor below does not constitute an assertion by the Board of Trustees or any individual Trustee that a Trustee has any special expertise that would impose any greater responsibility or liability on such Trustee than would exist otherwise.

Scott M. Amero. Mr. Amero retired in 2010 after a 20-year career at BlackRock, Inc., where he was then Vice Chairman and Global Chief Investment Officer, Fixed Income, and Co-Head of Fixed Income Portfolio Management. He currently is on the Board of Trustees for Rare, a conservation nonprofit, a Trustee of Root Capital, a Trustee of the Massachusetts chapter of The Nature Conservancy, a Trustee for Adventure Scientists, a conservation nonprofit, and a member of the Advisory Board of the Mossavar-Rahmani Center for Business and Government at the Harvard Kennedy School. Mr. Amero has extensive investment experience and has served as a Trustee of Harbor Funds since 2014 and of Harbor ETF Trust since 2021.

Donna J. Dean. Ms. Dean served as the Chief Investment Officer of the Rockefeller Foundation from 2001 through 2019. The Rockefeller Foundation is a philanthropic organization established by the Rockefeller family in 1913 to promote the well-being of humanity. As Chief Investment Officer, Ms. Dean was responsible for leading a team of investment professionals in managing the Rockefeller Foundation’s endowment. Ms. Dean was responsible for establishing strategy for the endowment’s investment program, including diversifying the endowment’s portfolio of investments across a range of asset classes including public and private equities, fixed income, emerging markets, real assets (such as resources and real estate), hedge funds and distressed debt. Prior to joining the Rockefeller Foundation in 1995, Ms. Dean spent seven years at Yale University, where she served as Director of Investments, with responsibility for real estate as well as oversight of the New Haven Initiative community investment program. Ms. Dean has significant investment experience and has served as a Trustee of Harbor Funds since 2010 and of Harbor ETF Trust since 2021.

Robert Kasdin. Mr. Kasdin served as the Senior Vice President and Chief Operating Officer of Johns Hopkins Medicine from 2015 to 2022 and also as Chief Financial Officer of Johns Hopkins Medicine from 2018 to 2022. Prior to joining Johns Hopkins Medicine, he served as Senior Executive Vice President of Columbia University from 2002 to 2015. Prior to joining Columbia University, he served as the Executive Vice President and Chief Financial Officer of the University of Michigan, Treasurer and Chief Investment Officer for The Metropolitan Museum of Art in New York City, and Vice President and General Counsel for Princeton University Investment Company. He started his career as a corporate attorney at Davis Polk & Wardwell. Mr. Kasdin previously served on the board of The Y in Central Maryland and on the Board of the National September 11 Memorial & Museum at the World Trade Center Foundation, Inc. He serves on the Board of Directors of Apollo Commercial Real Estate Finance, Inc. and is a member of the Council on Foreign Relations. Mr. Kasdin has significant business experience and has served as a Trustee of Harbor Funds since 2014 and of Harbor ETF Trust since 2021.

Kathryn L. Quirk. Ms. Quirk retired in March 2017 after nearly thirty-five years of serving in various legal, compliance and senior management roles in the asset management industry as well as serving as an officer of several investment companies. Prior to her retirement, she served at Goldman Sachs Asset Management as Head of U.S. Regulatory Compliance from 2013-2017. Prior to joining Goldman Sachs, she was Vice President and Corporate Counsel at Prudential Insurance Company of America, a subsidiary of Prudential Financial Inc., an insurance and financial services company. During that time, she also served as Deputy Chief Legal Officer, Asset Management at Prudential Insurance Company of America; Co-Chief Legal Officer at Prudential Investment Management, Inc.; Chief Legal Officer at Prudential Investments LLC; and Chief Legal Officer of the Prudential Mutual Funds. Prior to joining Prudential, Ms. Quirk worked at Zurich Scudder Investments, Inc., an asset management company, where she held several senior management positions, including General Counsel, Chief Compliance Officer, Chief Risk Officer, Corporate Secretary, Managing Director, and served on the board of directors and management committee. She started her career as an attorney at Debevoise & Plimpton LLP. She currently is on the Board of Directors and is Co-Chair of the Governance Committee of Just World International, Inc., a not-for-profit organization funding education and nutrition programs. Ms. Quirk has extensive investment management industry and legal experience and has served as a Trustee of Harbor Funds since 2017 and of Harbor ETF Trust since 2021.

Trustees and Officers

Additional Information
About the Trustees —
Continued

Douglas J. Skinner. Mr. Skinner is the Sidney Davidson Distinguished Service Professor of Accounting and Deputy Dean for Faculty at the University of Chicago Booth School of Business, where his prior positions include Eric J. Gleacher Distinguished Service Professor of Accounting, John P. and Lillian A. Gould Professor of Accounting, Neubauer Family Faculty Fellow, Interim Dean, and Executive Director of the Accounting Research Center. Mr. Skinner joined the University of Chicago Business School’s faculty in 2005 from the University of Michigan Business School, where he served as the KPMG Professor of Accounting. Mr. Skinner’s teaching and research has a particular emphasis on corporate disclosure practices, corporate financial reporting, and corporate finance. Mr. Skinner is a Senior Fellow at the Asian Bureau of Finance and Economic Research. Mr. Skinner is the author or co-author of numerous publications in leading accounting and finance academic journals. Mr. Skinner has served as a Trustee of Harbor Funds since 2020 and of Harbor ETF Trust since 2021.

Ann M. Spruill. Ms. Spruill retired in 2008 after an 18-year career at GMO & Co. LLC, where she was a partner, portfolio manager and the Head of International Active Equities Division. She also served as a member of the Executive Committee and the Board of Directors of that firm. GMO & Co. LLC is a privately-owned global investment management firm. Ms. Spruill served as a Trustee for the Financial Accounting Foundation. She served as a member of the Investment Committee and Chair of Global Public Equities for the Museum of Fine Arts, Boston and serves as a Trustee of the University of Rhode Island. Ms. Spruill has significant investment experience and has served as a Trustee of Harbor Funds since 2014 and of Harbor ETF Trust since 2021.

Landis Zimmerman. Mr. Zimmerman retired in 2021 after serving 17 years as Vice President and Chief Investment Officer of the Howard Hughes Medical Institute. Prior to joining Howard Hughes Medical Institute, he served as Managing Director for investments at the University of Pennsylvania from 1998-2004, Associate Director of Investments of the Rockefeller Foundation from 1996-1998, Associate Director at Bear, Stearns & Co. Inc. from 1994-1996, and Vice President at J.P. Morgan Securities Inc. from 1985-1994. He began his career as Assistant Treasurer at Chemical Bank in 1981. He is currently an independent, non-fiduciary advisor for Gore Creek Asset Management, a family investment office, and is a member of the Japan Science and Technology Agency Investment Advisory Committee. Mr. Zimmerman has served as a Trustee of Harbor Funds and Harbor ETF Trust since 2022.

Charles F. McCain. Mr. McCain has served as Chief Executive Officer of Harbor Capital Advisors since 2017 and as a Director since 2007. Mr. McCain previously served as President and Chief Operating Officer of Harbor Capital Advisors during 2017, Executive Vice President and General Counsel of Harbor Capital Advisors from 2004-2017 and as Chief Compliance Officer of Harbor Capital Advisors from 2004-2014. He served as Harbor Funds’ Chief Compliance Officer from 2004-2017. He has served as a Director and Chairperson of Harbor Trust Company, Inc. since 2019. He also has served as a Director of Harbor Services Group, Inc. since 2007, and as the Chief Compliance Officer of Harbor Services Group, Inc. from 2004-2017. He has also served as a Director of Harbor Funds Distributors, Inc. since 2007, and as the Chief Compliance Officer and Executive Vice President of Harbor Funds Distributors, Inc. from 2007-2017. Prior to joining Harbor Capital Advisors in 2004, Mr. McCain was a Junior Partner at the law firm of Wilmer Cutler Pickering Hale and Dorr LLP. Mr. McCain has extensive business, investment, legal and compliance experience and has served as a Trustee and Chairman of the Board of Harbor Funds since 2017 and as a Trustee and Chairman of the Board of Harbor ETF Trust since 2021.

Board Leadership Structure

As indicated above, the business and affairs of the Trust shall be managed by or under the direction of the Trustees. The Trustees have delegated day-to-day management of the affairs of the Trust to the Advisor, subject to the Trustees’ oversight. The Board of Trustees is currently comprised of eight Trustees, seven of whom are Independent Trustees. All Independent Trustees serve on the Audit Committee and Nominating Committee, as discussed below. The Chairman of the Board of Trustees is an Interested Trustee.

The Independent Trustees determined that it was appropriate to appoint a Lead Independent Trustee to facilitate communication among the Independent Trustees and with management. Accordingly, the Independent Trustees have appointed Ms. Quirk to serve as Lead Independent Trustee. Among other responsibilities, the Lead Independent Trustee coordinates with management and the other Independent Trustees regarding review of agendas for board meetings; serves as chair of meetings of the Independent Trustees; and, in consultation with the other Independent Trustees and as requested or appropriate, communicates with management, counsel, third party service providers and others on behalf of the Independent Trustees.

The Trustees believe that this leadership structure is appropriate given, among other things, the size and number of funds offered by the Trust; the size and committee structure of the Board of Trustees; management’s accessibility to the Independent Trustees, both individually and collectively through the Lead Independent Trustee; and the active and engaged role played by each Trustee with respect to oversight responsibilities.

Trustees and Officers

Board Committees

All Independent Trustees serve on the Audit Committee and the Nominating Committee. The functions of the Audit Committee include recommending an independent registered public accounting firm to the Trustees, monitoring the independent registered public accounting firm’s performance, reviewing the results of audits and responding to certain other matters deemed appropriate by the Trustees. The Nominating Committee is responsible for the selection and nomination of candidates to serve as Independent Trustees. The Nominating Committee will also consider nominees recommended by shareholders to serve as Trustees provided that shareholders submit such recommendations in writing to Harbor Funds Nominating Committee, c/o Harbor Funds, 111 South Wacker Drive, 34th Floor, Chicago, IL 60606-4302 within a reasonable time before any meeting.

During Harbor Funds fiscal year ended October 31, 2022, the Board of Trustees held 16 meetings, the Audit Committee held 3 meetings and the Nominating Committee held 2 meetings. The Board of Trustees does not have a compensation committee.

Risk Oversight

The Board of Trustees considers its role with respect to risk management to be one of oversight rather than active management. The Trust faces a number of types of risks, including investment risk, legal and compliance risk, operational risk (including business continuity risk), reputational and business risk. The Board of Trustees recognizes that not all risks potentially affecting the Trust can be identified in advance, and that it may not be possible or practicable to eliminate certain identifiable risks. As part of the Trustees’ oversight responsibilities, the Trustees generally oversee the Funds’ risk management policies and processes, as these are formulated and implemented by the Trust’s management. These policies and processes seek to identify relevant risks and, where practicable, lessen the possibility of their occurrence and/or mitigate the impact of such risks if they were to occur. Various parties, including management of the Trust, the Trust’s independent registered public accounting firm and other service providers provide regular reports to the Board of Trustees on various operations of the Trust and related risks and their management. In particular, the Funds’ Chief Compliance Officer regularly reports to the Trustees with respect to legal and compliance risk management, the Chief Financial Officer reports on financial operations, and a variety of other management personnel report on other risk management areas, including the operations of certain affiliated and unaffiliated service providers to the Trust. The Audit Committee maintains an open and active communication channel with both the Trust’s personnel and its independent auditor, largely, but not exclusively, through its chair.

Trustees and Officers

Trustee Compensation

For the fiscal year ended
October 31, 2022

Name of Person, Position	Aggregate Compensation From Harbor Funds	Pension or Retirement Benefits Accrued As Part of Fund Expenses	Total Compensation From Fund Complex Paid to Trustees*
Charles F. McCain, Chairman, President and Trustee	-0-	-0-	-0-
Scott M. Amero, Trustee	$270,000	-0-	$300,000
Donna J. Dean, Trustee	$270,000	-0-	$300,000
Robert Kasdin, Trustee1	$270,000	-0-	$300,000
Kathryn L. Quirk, Trustee1,2	$315,000	-0-	$350,000
Douglas J. Skinner, Trustee3	$292,500	-0-	$325,000
Ann M. Spruill, Trustee1	$270,000	-0-	$300,000
Landis Zimmerman, Trustee4	$90,000	-0-	$100,000

Includes amounts paid by Harbor Funds and Harbor ETF Trust.

During the fiscal year ended October 31, 2022, Mr. Kasdin and Mses. Quirk and Spruill elected to defer at least a portion of their compensation pursuant to the Harbor Funds Deferred Compensation Plan for Independent Trustees. As of October 31, 2022, the total value of Mr. Kasdin’s and Mses. Quirk and Spruill’s accounts under that plan was $2,095,058, $830,414 and $1,956,516, respectively.

In consideration of her services as Lead Trustee, Ms. Quirk received $45,000 from the Harbor Funds and $5,000 from the Harbor ETF Trust in addition to the compensation payable to each other Independent Trustee for the fiscal year ended October 31, 2022.

In consideration of his service as Audit Committee Chair, Mr. Skinner received $22,500 from the Harbor Funds and $2,500 from the Harbor ETF Trust in addition to the compensation payable to each other Independent Trustee for the fiscal year ended October 31, 2022.

Mr. Zimmerman was appointed as a member of the Board of Trustees of the Harbor Funds effective August 9, 2022.