485BPOS
Prospectus May 1, 2022
 
Ticker
Symbol
Listing
Exchange
Alger Mid Cap 40 ETF
FRTY
NYSE Arca, Inc.
Alger 35 ETF
ATFV
NYSE Arca, Inc.
These Exchange-Traded Funds (“ETFs”) are different from traditional ETFs.
Traditional ETFs tell the public what assets they hold each day. These ETFs will not. This may create additional risks for your investment. For example:
You may have to pay more money to trade an ETF’s shares. These ETFs will provide less information to traders, who tend to charge more for trades when they have less information.
The price you pay to buy ETF shares on an exchange may not match the value of an ETF’s portfolio. The same is true when you sell shares. These price differences may be greater for these ETFs compared to other ETFs because these ETFs provide less information to traders.
These additional risks may be even greater in bad or uncertain market conditions.
The differences between these ETFs and other ETFs may also have advantages. By keeping certain information about the ETFs secret, these ETFs may face less risk that other traders can predict or copy their investment strategies. This may improve the ETFs’ performance. If other traders are able to copy or predict the ETFs’ investment strategies, however, this may hurt the ETFs’ performance.
For additional information regarding the unique attributes and risks of these ETFs, see the Share Price and Distributions section of this Prospectus and the Non-transparent ETF Structure Risk, Trading Issues Risk, Early Close/Trading Halt Risk, Authorized Participant/AP Representative Concentration Risk, Market Trading Risk, and Premium/Discount Risk in the Principal Risks section of this Prospectus.
(Alger is a signatory to the PRI and carbon neutral.)
The Securities and Exchange Commission has not determined if the information in this Prospectus is accurate or complete, nor has it approved or disapproved these securities. It is a criminal offense to represent otherwise.


Prospectus 2/26

Summary Sections
Alger Mid Cap 40 ETF
Investment Objective
Alger Mid Cap 40 ETF seeks long-term capital appreciation.
Fund Fees and Expenses
This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
Shareholder Fees
(fees paid directly from your investment)
 
Alger
Mid Cap 40 ETF
 
None
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
Alger
Mid Cap 40 ETF
Management Fees
0.50%
Distribution and/or Service (12b-1) Fees*
None
Other Expenses
0.73%
Total Annual Fund Operating Expenses
1.23%
Fee Waiver and/or Expense Reimbursement**
(0.63)%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement
0.60%
*
The Fund has adopted a Rule 12b-1 plan that allows the Fund to pay annual fees not to exceed 0.25% to the Fund’s distributor for distribution and individual shareholder services; however, the Board of Trustees has determined not to authorize payment of a 12b-1 plan fee at this time, and for at least one year from the effective date of this prospectus.
**
Fred Alger Management, LLC (the “Manager”) has contractually agreed to reimburse expenses (excluding acquired fund fees and expenses, taxes, brokerage and extraordinary expenses, to the extent applicable) through April 30, 2023 to the extent necessary to limit the total annual fund operating expenses of the Fund to 0.60% of the Fund’s average daily net assets. This expense reimbursement may only be amended or terminated prior to its expiration date by agreement between the Manager and the Fund’s Board of Trustees, and will terminate automatically in the event of termination of the Investment Management Agreement. The Manager may, during the term of the contract, recoup any fees waived or expenses reimbursed pursuant to the contract; however, the Fund will only make repayments to the Manager if such repayment does not cause the Fund’s expense ratio after the repayment is taken into account, to exceed both (i) the expense cap in place at the time such amounts were waived or reimbursed, and (ii) the Fund’s current expense cap. Such recoupment is limited to two years from the date the amount is initially waived or reimbursed.
Example
The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. The one-year example through April 30, 2023 is based on net operating expenses, which reflect the contractual expense limitation agreed to by the Manager. Although your actual costs may be higher or lower, based on these assumptions you would pay the following expenses whether or not you redeemed your shares at the end of each period:
 
1 Year
3 Years
5 Years
10 Years
Alger Mid Cap 40 ETF
$61
$262
$551
$1,374
Portfolio Turnover
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the period since the Fund’s inception through December 31, 2021, the Fund’s portfolio turnover rate was 417.06% of the average value of its portfolio.

Prospectus 3/26

Principal Investment Strategy
The Manager believes companies undergoing Positive Dynamic Change offer the best investment opportunities. Positive Dynamic Change refers to companies realizing High Unit Volume Growth or companies undergoing Positive Lifecycle Change. High Unit Volume Growth companies are traditional growth companies experiencing, for example, rapidly growing demand or market dominance. Positive Lifecycle Change companies are, for example, companies benefitting from new regulations, a new product innovation or new management.
Under normal circumstances, the Fund invests at least 80% of its net assets in equity securities of mid-cap companies. For these purposes, “mid-cap companies” are those companies that, at the time of purchase of the securities, have total market capitalization within the range of (i) companies included in the Russell MidCap Growth Index or the S&P MidCap 400 Index, as reported by the index at the most recent quarter end, or (ii) $1 billion to $30 billion. Both indexes are designed to track the performance of medium-capitalization stocks. At December 31, 2021, the companies in the Russell MidCap Growth Index ranged from $1.2 billion to $60 billion and the companies in the S&P MidCap 400 Index ranged from $1.7 billion to $33.2 billion. Because of the Fund’s long-term approach to investing, it could have a significant portion of its assets invested in securities of issuers that have appreciated beyond the market capitalization thresholds noted. Equity securities include common or preferred stocks that are listed on U.S. exchanges.
The Fund may invest a significant portion of its assets in securities of companies conducting business within a single sector, as defined by third party sources, including the information technology, healthcare, consumer discretionary, and industrials sectors; however, the Fund will not invest more than 25% of its total assets in any one industry comprising such sector.
As a focus fund, the Fund intends to invest a substantial portion of its assets in a smaller number of issuers. Generally the Fund will own approximately 40 holdings. Fund holdings may occasionally differ from this number for a variety of reasons, including, among others, because of extreme market volatility, such as when the Fund has entered a temporary defensive position.  Additionally, the Fund may temporarily exceed the stated number of holdings when it acquires a new holding and determines that it is in the best interests of shareholders to sell an existing holding over a period of time, instead of immediately selling the entire holding.
The Fund may sell a stock when it reaches a target price, it fails to perform as expected, or other opportunities appear more attractive. As a result, the Fund may engage in active trading of portfolio securities.
The Fund is a non-diversified and non-transparent, actively managed exchange-traded fund (“ETF”) that does not seek to replicate the performance of a specified index.
The Fund operates in reliance on an exemptive order (the “Order”) from the Securities and Exchange Commission (the “SEC”), which limits the types of investments the Fund may hold to those listed in the Fund’s application for the Order. Under the terms of the Order, the Fund is permitted to invest only in exchange-traded funds, exchange-traded notes, exchange listed common stocks, exchange-traded preferred stocks, exchange-traded ADRs, exchange-traded real estate investment trusts, exchange-traded commodity pools, exchange-traded metal trusts, exchange-traded currency trusts and exchange-traded futures that trade on a U.S. exchange contemporaneously with the Fund’s shares, as well as cash and cash equivalents (which are short-term U.S. Treasury securities, government money market funds, and repurchase agreements). The Fund’s investment strategies and practices, including those listed above, are subject to these limitations.
Principal Risks
An investment in the Fund involves risks. The Fund’s share price may go down, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The following is a summary description of principal risks involved in investing in the Fund.
Non-Transparent ETF Structure Risk – Unlike traditional ETFs, the Fund does not provide daily disclosure of its portfolio holdings. Instead, the Fund provides a verified intraday indicative value (“VIIV”), calculated and disseminated every second throughout the trading day. The VIIV is intended to provide investors and other market participants with enough information to allow for an effective arbitrage mechanism that will attempt to keep the market price of the Fund at or close to the underlying net asset value (“NAV”) per share of the Fund. There is, however, a risk, which may increase during periods of market disruption or volatility, that market prices may vary significantly from the underlying NAV of the Fund. Similarly, because the Fund’s shares trade on the basis of a published VIIV, they may trade at a wider bid/ask spread than shares of ETFs that publish their portfolio holdings on a daily basis, especially during periods of market disruption or volatility, and therefore, may cost investors more to trade. Although the Fund seeks to benefit from keeping its portfolio information confidential, some market participants may attempt to use the VIIV to identify the Fund’s trading strategy, which if successful, could result in such market participants engaging in certain predatory trading practices that may have the potential to harm the Fund and its shareholders.
Trading Issues Risk – Trading in Fund shares on NYSE Arca, Inc. (the “Listing Exchange”) may be halted in certain circumstances. If at any time the securities representing 10% or more of the Fund’s portfolio become subject to a trading halt or otherwise do not have readily available market quotations, the Manager will request the Listing Exchange to halt trading of the Fund. There may be

Prospectus 4/26

other instances that require a trading halt. Specifically, if there is a discrepancy of sufficient magnitude in the Fund’s VIIV calculation, the Manager will request the Listing Exchange to halt trading. This “circuit breaker” is designed to prevent the VIIV from reflecting outlier prices.
Early Close/Trading Halt Risk – An exchange or market may close early or issue trading halts on portfolio securities. In times of market volatility, if trading is halted in some of the securities that the Fund holds, there may be a disconnect between the market price of those securities and the market price of the Fund. If at any time the securities representing 10% or more of the Fund’s portfolio become subject to a trading halt or otherwise do not have readily available market quotations, the Manager will request the Listing Exchange to halt trading on the Fund, meaning that investors would not be able to trade their shares. During any such trading halt, the VIIV would continue to be calculated and disseminated. Trading halts may have a greater impact on the Fund than traditional ETFs because of its lack of transparency. Additionally, the Manager monitors the bid and ask quotations for the securities the Fund holds, and, if it determines that such a security does not have readily available market quotations (such as during an extended trading halt), it will post that fact and the name and weighting of that security in the Fund’s VIIV calculation on the Fund’s web site. This information should permit market participants to calculate the effect of that security on the VIIV calculation, determine their own fair value of the disclosed portfolio security, and better judge the accuracy of that day’s VIIV for the Fund. An extended trading halt in a portfolio security could exacerbate discrepancies between the VIIV and the Fund’s NAV.
Authorized Participant/ AP Representative Concentration Risk – The creation and redemption process for the Fund occurs through a confidential brokerage account (“Confidential Account”) with an agent, called an “AP Representative,” on behalf of authorized participants who have entered into agreements with the Fund’s distributor (“Authorized Participants”). Each day, the AP Representative will be given the names and quantities of the securities to be deposited, in the case of a creation, or redeemed, in the case of a redemption (a “Basket”), allowing the AP Representative to buy and sell positions in the portfolio securities to permit creations or redemptions on the Authorized Participant’s behalf, without disclosing the information to the Authorized Participant. The Fund may have a limited number of institutions that act as Authorized Participants and AP Representatives, none of which are obligated to engage in creation or redemption transactions. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to process creation and/or redemption orders, Fund shares may trade at a discount to NAV and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally. The fact that the Fund is offering a novel and unique structure may result in fewer entities willing to act as Authorized Participants and AP Representatives. During times of market stress, Authorized Participants may be more likely to step away from this type of ETF than a traditional ETF.
Market Trading Risk – The Fund faces numerous market trading risks, including disruptions to creations and redemptions, the existence of extreme market volatility, or potential lack of an active trading market for shares that may result in shares trading at a significant premium or discount to NAV and/or in a reduced liquidity of the Funds’ shares. During such periods, shareholders may be unable to sell their shares, or may incur significant losses when selling shares.
Premium/Discount Risk – Shares of the Fund are listed for trading on the Listing Exchange and are bought and sold in the secondary market at market prices that may differ from their most recent NAV. The market value of the Fund’s shares will fluctuate, in some cases materially, in response to changes in the Fund’s NAV, the intraday value of the Fund’s holdings, and the relative supply and demand for the Fund’s shares on the Listing Exchange. Although the Fund is intended to provide investors with enough information to allow for an effective arbitrage mechanism that will keep the market price of the Fund at or close to the Fund’s NAV, there is a risk (which may increase during periods of market disruption or volatility) that market prices for Fund shares will vary significantly from the Fund’s NAV. This risk may be greater for the Fund than for traditional ETFs that disclose their full portfolio holdings on a daily basis because the publication of the VIIV does not provide the same level of transparency as the publication of the full portfolio by a fully transparent active ETF. This could cause the Fund’s shares to have wider bid/ask spreads and larger premiums/discounts than fully transparent ETFs using the same investment strategies. During such periods, you may be unable to sell your shares or may incur significant losses if you sell your shares. There are various methods by which investors can purchase and sell shares and various types of orders that may be placed. Investors should consult their financial intermediary before purchasing or selling shares of the Fund. If a shareholder purchases shares at a time when the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses. The Fund cannot predict whether shares will trade above (premium), below (discount) or at NAV.
Investment Risk – An investment in the Fund is subject to investment risk, including the possible loss of the entire principal amount that you invest.
Market Risk – Your investment in Fund shares represents an indirect investment in the securities owned by the Fund. The value of these securities, like other investments, may move up or down, sometimes rapidly and unpredictably. Local, regional or global events such as environmental or natural disasters, war, terrorism, pandemics, outbreaks of infectious diseases, and similar public health threats, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.

Prospectus 5/26

Mid Cap Securities Risk – There may be greater risk in investing in medium-capitalization companies rather than larger, more established companies due to such factors as inexperienced management and limited product lines or financial resources. It may also be difficult or impossible to liquidate a security position at a time and price acceptable to the Fund because of the potentially less frequent trading of stocks of smaller market capitalization.
Equity Securities Risk – As with any fund that invests in stocks, your investment will fluctuate in value, and the loss of your investment is a risk of investing. The Fund’s price per share will fluctuate due to changes in the market prices of its investments. Also, the Fund’s investments may not grow as fast as the rate of inflation and stocks tend to be more volatile than some other investments you could make, such as bonds.
Small Number of Holdings Risk – Under normal circumstances, the Fund invests in a 40-stock portfolio. Therefore, the Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a higher number of holdings.
Growth Stocks Risk – Prices of growth stocks tend to be higher in relation to their companies’ earnings and may be more sensitive to market, political and economic developments than other stocks, making their prices more volatile. An investment in the Fund may be better suited to investors who seek long-term capital growth and can tolerate fluctuations in their investment’s value.
Non-Diversification Risk – The Fund is a non-diversified investment company. Therefore, the Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a diversified portfolio.
Sector Risk – The Fund may have a significant portion of its assets invested in securities of companies conducting business within a single sector. Companies in the same sector may be similarly affected by economic, regulatory, political or market events or conditions, which may make the Fund more vulnerable to unfavorable developments in that sector than a fund that has a more diversified portfolio. Generally, the more broadly the Fund invests, the more it spreads risk and potentially reduces the risks of loss and volatility.
Information Technology Sector Risk – The Fund may have a significant portion of its assets invested in securities of technology-related companies. Therefore, the Fund may be more susceptible to particular risks that may affect companies in the information technology sector and technology-related sectors than if it were invested in a wider variety of companies in unrelated sectors. At times, the performance of such companies will lag the performance of other industries or the broader market as a whole. Certain technology related companies may face special risks that their products or services may not prove to be commercially successful. Technology related companies are also strongly affected by worldwide scientific or technological developments. As a result, their products may rapidly become obsolete. Such companies are also often subject to governmental regulation and may, therefore, be adversely affected by governmental policies. These factors may lead to limited earnings and/or failing profit margins. As a result, the value of technology related companies’ securities may fall or fail to rise. Many technology related companies’ securities have historically been more volatile than other securities, especially over the short term.
Health Care Sector Risk – The Fund may have a significant portion of its assets invested in securities of healthcare companies. At times, the performance of healthcare companies will lag the performance of other industries or the broader market as a whole, and the performance of such companies may be more volatile. Healthcare companies may also be significantly affected by intense competition, aggressive pricing, government regulation, technological innovations, product obsolescence, patent considerations, product compatibility and consumer preferences.
Consumer Discretionary Sector Risk – The consumer discretionary sector may be affected by changes in domestic and international economies, exchange and interest rates, competition, consumers’ disposable income, consumer preferences, social trends and marketing campaigns.
Industrials Sector Risk – The Fund may have a significant portion of its assets invested in securities of companies in the industrials sector. Industrial companies are affected by supply and demand both for their specific product or service and for industrials sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Aerospace and defense companies, a component of the industrials sector, can be significantly affected by government spending policies because companies involved in this industry rely, to a significant extent, on U.S. and foreign government demand for their products and services.
Portfolio Turnover (Active Trading) Risk – Because the Fund may engage in active trading of portfolio securities, it may incur increased transaction costs and brokerage commissions, both of which can lower the actual return on an investment. Active trading may also increase short-term gains and losses, which may affect the taxes a shareholder has to pay.

Prospectus 6/26

Performance
No performance information will be presented until the Fund has been in operation for a full calendar year. Annual performance information gives some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.alger.com.
Management
Investment Manager
Portfolio Manager Primarily Responsible for Day-to-Day Management of the Fund
Fred Alger Management, LLC
Amy Y. Zhang, CFA
Executive Vice President and Portfolio Manager
Since Inception (February 2021)
Shareholder Information
Purchasing and Redeeming Fund Shares
Individual Fund shares may only be bought and sold in the secondary market through a broker or dealer at a market price. Because ETF shares trade at market prices rather than NAV, shares may trade at a price greater than NAV (premium) or less than NAV (discount). An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the Fund (bid) and the lowest price a seller is willing to accept for shares of the Fund (ask) when buying or selling shares in the secondary market (the “bid-ask spread”). Once the Fund commences operations, recent information, including information on the Fund’s NAV, market price, premiums and discounts, and bid-ask spreads, will be available on the Fund’s website at www.alger.com.
Tax Information
The Fund’s distributions may be taxable as ordinary income or capital gains. The Fund is actively managed, and as a result, investors may receive capital gains distributions annually.
Payments to Broker-Dealers and Other Financial Intermediaries
If you purchase the Fund through a broker-dealer or other financial intermediary (such as if your account is held at a bank), the Manager or the Fund’s distributor may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your financial professional to recommend the Fund over another investment. Ask your financial professional or visit your financial intermediary’s website for more information.

Prospectus 7/26

Alger 35 ETF
Investment Objective
Alger 35 ETF seeks long-term capital appreciation.
Fund Fees and Expenses
This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
Shareholder Fees
(fees paid directly from your investment)
 
Alger 35 ETF
 
None
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
Alger 35 ETF
Management Fees
0.45%
Distribution and/or Service (12b-1) Fees*
None
Other Expenses
1.40%
Total Annual Fund Operating Expenses
1.85%
Fee Waiver and/or Expense Reimbursement**
(1.30)%
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement
0.55%
*
The Fund has adopted a Rule 12b-1 plan that allows the Fund to pay annual fees not to exceed 0.25% to the Fund’s distributor for distribution and individual shareholder services; however, the Board of Trustees has determined not to authorize payment of a 12b-1 plan fee at this time, and for at least one year from the effective date of this prospectus.
**
Fred Alger Management, LLC (the “Manager”) has contractually agreed to reimburse expenses (excluding acquired fund fees and expenses, taxes, brokerage and extraordinary expenses, to the extent applicable) through April 30, 2023 to the extent necessary to limit the total annual fund operating expenses of the Fund to 0.55% of the Fund’s average daily net assets. This expense reimbursement may only be amended or terminated prior to its expiration date by agreement between the Manager and the Fund’s Board of Trustees, and will terminate automatically in the event of termination of the Investment Management Agreement. The Manager may, during the term of the contract, recoup any fees waived or expenses reimbursed pursuant to the contract; however, the Fund will only make repayments to the Manager if such repayment does not cause the Fund’s expense ratio after the repayment is taken into account, to exceed both (i) the expense cap in place at the time such amounts were waived or reimbursed, and (ii) the Fund’s current expense cap. Such recoupment is limited to two years from the date the amount is initially waived or reimbursed.
Example
The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. The one-year example through April 30, 2023 is based on net operating expenses, which reflect the contractual expense limitation agreed to by the Manager. Although your actual costs may be higher or lower, based on these assumptions you would pay the following expenses whether or not you redeemed your shares at the end of each period:
 
1 Year
3 Years
5 Years
10 Years
Alger 35 ETF
$56
$320
$750
$1,948
Portfolio Turnover
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the period since the Fund’s inception through December 31, 2021, the Fund’s portfolio turnover rate was 99.20% of the average value of its portfolio.

Prospectus 8/26

Principal Investment Strategy
The Manager believes companies undergoing Positive Dynamic Change offer the best investment opportunities. Positive Dynamic Change refers to companies realizing High Unit Volume Growth or companies undergoing Positive Lifecycle Change. High Unit Volume Growth companies are traditional growth companies experiencing, for example, rapidly growing demand or market dominance. Positive Lifecycle Change companies are, for example, companies benefitting from new regulations, a new product innovation or new management.
Under normal circumstances, the Fund invests in a stock portfolio of approximately 35 equity securities of companies of any market capitalization that the Manager believes are undergoing Positive Dynamic Change. Equity securities include common or preferred stocks. The Fund focuses its investments in technology companies, including companies benefiting from technological improvements, advancements or developments. In the opinion of the Manager, these companies across industries use technology extensively to improve their business processes, applications and opportunities or seek to grow through technological developments and innovations.
As a focus fund, the Fund intends to invest a substantial portion of its assets in a smaller number of issuers. Generally the Fund will own approximately 35 holdings. Fund holdings may occasionally differ from this number for a variety of reasons, including because of extreme market volatility, such as when the Fund has entered a temporary defensive position.  Additionally, the Fund may temporarily exceed the stated number of holdings when it acquires a new holding and determines that it is in the best interests of shareholders to sell an existing holding over a period of time, instead of immediately selling the entire holding.
The Fund may sell a stock when it reaches a target price, it fails to perform as expected, or other opportunities appear more attractive.
The Fund may invest a significant portion of its assets in securities of companies conducting business within a single sector, as defined by third party sources, including the information technology, healthcare and consumer discretionary sectors.
The Fund is a non-diversified and non-transparent, actively managed exchange-traded fund (“ETF”) that does not seek to replicate the performance of a specified index.
The Fund operates in reliance on an exemptive order (the “Order”) from the Securities and Exchange Commission (the “SEC”), which limits the types of investments the Fund may hold to those listed in the Fund’s application for the Order. Under the terms of the Order, the Fund is permitted to invest only in exchange-traded funds, exchange-traded notes, exchange listed common stocks, exchange-traded preferred stocks, exchange-traded ADRs, exchange-traded real estate investment trusts, exchange-traded commodity pools, exchange-traded metal trusts, exchange-traded currency trusts and exchange-traded futures that trade on a U.S. exchange contemporaneously with the Fund’s shares, as well as cash and cash equivalents (which are short-term U.S. Treasury securities, government money market funds, and repurchase agreements). The Fund’s investment strategies and practices, including those listed above, are subject to these limitations.
Principal Risks
An investment in the Fund involves risks. The Fund’s share price may go down, which means you could lose money. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The following is a summary description of principal risks involved in investing in the Fund.
Non-Transparent ETF Structure Risk – Unlike traditional ETFs, the Fund does not provide daily disclosure of its portfolio holdings. Instead, the Fund provides a verified intraday indicative value (“VIIV”), calculated and disseminated every second throughout the trading day. The VIIV is intended to provide investors and other market participants with enough information to allow for an effective arbitrage mechanism that will attempt to keep the market price of the Fund at or close to the underlying net asset value (“NAV”) per share of the Fund. There is, however, a risk, which may increase during periods of market disruption or volatility, that market prices may vary significantly from the underlying NAV of the Fund. Similarly, because the Fund’s shares trade on the basis of a published VIIV, they may trade at a wider bid/ask spread than shares of ETFs that publish their portfolio holdings on a daily basis, especially during periods of market disruption or volatility, and therefore, may cost investors more to trade. Although the Fund seeks to benefit from keeping its portfolio information confidential, some market participants may attempt to use the VIIV to identify the Fund’s trading strategy, which if successful, could result in such market participants engaging in certain predatory trading practices that may have the potential to harm the Fund and its shareholders.
Trading Issues Risk – Trading in Fund shares on NYSE Arca, Inc. (the “Listing Exchange”) may be halted in certain circumstances. If at any time the securities representing 10% or more of the Fund’s portfolio become subject to a trading halt or otherwise do not have readily available market quotations, the Manager will request the Listing Exchange to halt trading of the Fund. There may be other instances that require a trading halt. Specifically, if there is a discrepancy of sufficient magnitude in the Fund’s VIIV calculation, the Manager will request the Listing Exchange to halt trading. This “circuit breaker” is designed to prevent the VIIV from reflecting outlier prices.

Prospectus 9/26

Early Close/Trading Halt Risk – An exchange or market may close early or issue trading halts on portfolio securities. In times of market volatility, if trading is halted in some of the securities that the Fund holds, there may be a disconnect between the market price of those securities and the market price of the Fund. If at any time the securities representing 10% or more of the Fund’s portfolio become subject to a trading halt or otherwise do not have readily available market quotations, the Manager will request the Listing Exchange to halt trading on the Fund, meaning that investors would not be able to trade their shares. During any such trading halt, the VIIV would continue to be calculated and disseminated. Trading halts may have a greater impact on the Fund than traditional ETFs because of its lack of transparency. Additionally, the Manager monitors the bid and ask quotations for the securities the Fund holds, and, if it determines that such a security does not have readily available market quotations (such as during an extended trading halt), it will post that fact and the name and weighting of that security in the Fund’s VIIV calculation on the Fund’s web site. This information should permit market participants to calculate the effect of that security on the VIIV calculation, determine their own fair value of the disclosed portfolio security, and better judge the accuracy of that day’s VIIV for the Fund. An extended trading halt in a portfolio security could exacerbate discrepancies between the VIIV and the Fund’s NAV.
Authorized Participant/ AP Representative Concentration Risk – The creation and redemption process for the Fund occurs through a confidential brokerage account (“Confidential Account”) with an agent, called an “AP Representative,” on behalf of authorized participants who have entered into agreements with the Fund’s distributor (“Authorized Participants”). Each day, the AP Representative will be given the names and quantities of the securities to be deposited, in the case of a creation, or redeemed, in the case of a redemption (a “Basket”), allowing the AP Representative to buy and sell positions in the portfolio securities to permit creations or redemptions on the Authorized Participant’s behalf, without disclosing the information to the Authorized Participant. The Fund may have a limited number of institutions that act as Authorized Participants and AP Representatives, none of which are obligated to engage in creation or redemption transactions. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to process creation and/or redemption orders, Fund shares may trade at a discount to NAV and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally. The fact that the Fund is offering a novel and unique structure may result in fewer entities willing to act as Authorized Participants and AP Representatives. During times of market stress, Authorized Participants may be more likely to step away from this type of ETF than a traditional ETF.
Market Trading Risk – The Fund faces numerous market trading risks, including disruptions to creations and redemptions, the existence of extreme market volatility, or potential lack of an active trading market for shares that may result in shares trading at a significant premium or discount to NAV and/or in a reduced liquidity of the Funds’ shares. During such periods, shareholders may be unable to sell their shares, or may incur significant losses when selling shares.
Premium/Discount Risk – Shares of the Fund are listed for trading on the Listing Exchange and are bought and sold in the secondary market at market prices that may differ from their most recent NAV. The market value of the Fund’s shares will fluctuate, in some cases materially, in response to changes in the Fund’s NAV, the intraday value of the Fund’s holdings, and the relative supply and demand for the Fund’s shares on the Listing Exchange. Although the Fund is intended to provide investors with enough information to allow for an effective arbitrage mechanism that will keep the market price of the Fund at or close to the Fund’s NAV, there is a risk (which may increase during periods of market disruption or volatility) that market prices for Fund shares will vary significantly from the Fund’s NAV. This risk may be greater for the Fund than for traditional ETFs that disclose their full portfolio holdings on a daily basis because the publication of the VIIV does not provide the same level of transparency as the publication of the full portfolio by a fully transparent active ETF. This could cause the Fund’s shares to have wider bid/ask spreads and larger premiums/discounts than fully transparent ETFs using the same investment strategies. During such periods, you may be unable to sell your shares or may incur significant losses if you sell your shares. There are various methods by which investors can purchase and sell shares and various types of orders that may be placed. Investors should consult their financial intermediary before purchasing or selling shares of the Fund. If a shareholder purchases shares at a time when the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses. The Fund cannot predict whether shares will trade above (premium), below (discount) or at NAV.
Investment Risk – An investment in the Fund is subject to investment risk, including the possible loss of the entire principal amount that you invest.
Market Risk – Your investment in Fund shares represents an indirect investment in the securities owned by the Fund. The value of these securities, like other investments, may move up or down, sometimes rapidly and unpredictably. Local, regional or global events such as environmental or natural disasters, war, terrorism, pandemics, outbreaks of infectious diseases, and similar public health threats, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
Equity Securities Risk – As with any fund that invests in stocks, your investment will fluctuate in value, and the loss of your investment is a risk of investing. The Fund’s price per share will fluctuate due to changes in the market prices of its investments. Also, the Fund’s investments may not grow as fast as the rate of inflation and stocks tend to be more volatile than some other investments you could make, such as bonds.

Prospectus 10/26

Non-Diversification Risk – The Fund is a non-diversified investment company. Therefore, the Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a diversified portfolio.
Small Number of Holdings Risk – Under normal circumstances, the Fund invests in a 35-stock portfolio. Therefore, the Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a higher number of holdings.
Growth Stocks Risk – Prices of growth stocks tend to be higher in relation to their companies’ earnings and may be more sensitive to market, political and economic developments than other stocks, making their prices more volatile. An investment in the Fund may be better suited to investors who seek long-term capital growth and can tolerate fluctuations in their investment’s value.
Small Cap and Mid Cap Securities Risk – There may be greater risk in investing in smaller, less seasoned companies rather than larger, more established companies due to such factors as inexperienced management and limited product lines or financial resources. It may also be difficult or impossible to liquidate a security position at a time and price acceptable to the Fund because of the potentially less frequent trading of stocks of smaller market capitalization.
Sector Risk – The Fund may have a significant portion of its assets invested in securities of companies conducting business within a single sector. Companies in the same sector may be similarly affected by economic, regulatory, political or market events or conditions, which may make the Fund more vulnerable to unfavorable developments in that sector than a fund that has a more diversified portfolio. Generally, the more broadly the Fund invests, the more it spreads risk and potentially reduces the risks of loss and volatility.
Information Technology Sector Risk – The Fund may have a significant portion of its assets invested in securities of technology-related companies. Therefore, the Fund may be more susceptible to particular risks that may affect companies in the information technology sector and technology-related sectors than if it were invested in a wider variety of companies in unrelated sectors. At times, the performance of such companies will lag the performance of other industries or the broader market as a whole. Certain technology related companies may face special risks that their products or services may not prove to be commercially successful. Technology related companies are also strongly affected by worldwide scientific or technological developments. As a result, their products may rapidly become obsolete. Such companies are also often subject to governmental regulation and may, therefore, be adversely affected by governmental policies. These factors may lead to limited earnings and/or failing profit margins. As a result, the value of technology related companies’ securities may fall or fail to rise. Many technology related companies’ securities have historically been more volatile than other securities, especially over the short term.
Health Care Sector Risk – The Fund may have a significant portion of its assets invested in securities of healthcare companies. At times, the performance of healthcare companies will lag the performance of other industries or the broader market as a whole, and the performance of such companies may be more volatile. Healthcare companies may also be significantly affected by intense competition, aggressive pricing, government regulation, technological innovations, product obsolescence, patent considerations, product compatibility and consumer preferences.
Consumer Discretionary Sector Risk – The consumer discretionary sector may be affected by changes in domestic and international economies, exchange and interest rates, competition, consumers’ disposable income, consumer preferences, social trends and marketing campaigns.
Performance
No performance information will be presented until the Fund has been in operation for a full calendar year. Annual performance information gives some indication of the risks of an investment in the Fund by comparing the Fund’s performance with a broad measure of market performance. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.alger.com.
Management
Investment Manager
Portfolio Manager Primarily Responsible for Day-to-Day Management of the Fund
Fred Alger Management, LLC
Dan C. Chung, CFA
Chief Executive Officer, Chief Investment Officer and Portfolio Manager
Since Inception (May 2021)

Prospectus 11/26

Shareholder Information
Purchasing and Redeeming Fund Shares
Individual Fund shares may only be bought and sold in the secondary market through a broker or dealer at a market price. Because ETF shares trade at market prices rather than NAV, shares may trade at a price greater than NAV (premium) or less than NAV (discount). An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the Fund (bid) and the lowest price a seller is willing to accept for shares of the Fund (ask) when buying or selling shares in the secondary market (the “bid-ask spread”). Once the Fund commences operations, recent information, including information on the Fund’s NAV, market price, premiums and discounts, and bid-ask spreads, will be available on the Fund’s website at www.alger.com.
Tax Information
The Fund’s distributions may be taxable as ordinary income or capital gains. The Fund is actively managed, and as a result, investors may receive capital gains distributions annually.
Payments to Broker-Dealers and Other Financial Intermediaries
If you purchase the Fund through a broker-dealer or other financial intermediary (such as if your account is held at a bank), the Manager or the Fund’s distributor may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your financial professional to recommend the Fund over another investment. Ask your financial professional or visit your financial intermediary’s website for more information.

Prospectus 12/26

Investment Objectives, Principal Investment Strategies and Related Risks
The investment objective, principal strategy and primary risks of each Fund are discussed individually in each Fund’s Summary Section in this Prospectus. Alger Mid Cap 40 ETF has adopted a policy to invest at least 80% of its assets in specified securities appropriate to its name (as described in the Fund’s Summary Section in this Prospectus) and to provide its shareholders with at least 60 days’ prior notice of any change with respect to this policy. Each Fund’s investment objective is a non-fundamental investment policy and may be changed by the Board of Trustees (the “Board”) of The Alger ETF Trust (the “Trust”) without shareholder approval. Each Fund will provide its shareholders with at least 60 days’ prior notice of any change to its investment objective. A Fund may, from time to time, take temporary defensive positions that are inconsistent with the Fund’s principal investment strategies in attempting to respond to adverse market, economic, political, or other conditions. A Fund may not achieve its investment objective while in a temporary defensive position.
Each Fund is a non-diversified and non-transparent, actively managed ETF that does not seek to replicate the performance of a specified index. A Fund’s past performance (before and after taxes) is not necessarily an indication of how it will perform in the future.
Additional Information About the Funds’ Investment Strategies and Investments
Investment Objectives
Each of the Funds seeks long-term capital appreciation.
Principal Investment Strategies
The following are each Fund’s investment process and principal investment strategies. Each Fund may invest in other securities that are not its principal strategy, and such strategies and related risks are described in more detail in the Fund’s Statement of Additional Information (“SAI”).
Each Fund invests primarily in equity securities. Each Fund’s investments in equity securities are primarily in common or preferred stocks, including convertible preferred securities, and American Depositary Receipts. Each Fund invests in companies whose securities are traded on a national securities exchange registered with the SEC, and trade contemporaneously with the Fund’s shares. As noted in each Fund's Summary Section in this Prospectus, the Funds operate in reliance on the Order from the SEC, which limits the types of investments the Funds may hold to those listed in the Funds' application for the Order.
Each Fund invests primarily in “growth” stocks. The Funds’ investment manager, Fred Alger Management, LLC (the “Manager”), believes that these companies tend to fall into one of two categories:
High Unit Volume Growth
Vital, creative companies that offer goods or services to a rapidly expanding marketplace. They include both established and emerging firms, exercising market dominance, offering new or improved products, or simply fulfilling an increased demand for an existing product line.
Positive Life Cycle Change
Companies experiencing a major change which is expected to produce advantageous results. These changes may be as varied as new management, products or technologies; restructuring or reorganization; regulatory change; or merger and acquisition.
Alger Mid Cap 40 ETF must take into account a company’s market capitalization when considering it for investment. The market capitalization of a company is its price per share multiplied by its number of outstanding shares.
ESG Integration
Although a Fund does not seek to implement a specific environmental, social and governance (“ESG”), impact or sustainability strategy unless otherwise disclosed, the Manager has sought to integrate ESG considerations into its investment process through the use of both third-party ESG specific information and its own proprietary research. Specifically, with respect to 75% of its assets under management, the Manager evaluates a company’s ESG factors and, based on such factors, may engage with the company to (i) identify drivers of poor ESG metrics; (ii) interview management with key questions about ESG issues; and (iii) evaluate the prospect of positive ESG change within a company. Upon conclusion of this engagement, a report is published to the Manager’s research database to ensure that all portfolio managers have access to the report summarizing the company’s ESG issues, the results of any meeting/interview with the company, an ESG rating of the company and any other relevant factors. The author of each report will meet with portfolio managers as necessary to discuss the ESG report and the impact the report may have on the overall investment view of the company.
The Manager may change the sources for such ESG information, including by adding or modifying the information it receives from third-party firms, selecting different third-party firms, using company-provided information, or performing different or additional

Prospectus 13/26

internal assessments. To assist with efforts to incorporate ESG considerations into the investment process, all of the Manager’s investment professionals have access to company-specific ESG reports. The Manager has established an ESG steering committee comprised of executive management and senior investment professionals to oversee this process.
ESG characteristics are not the sole considerations when making investment decisions for a Fund. Further, investors can differ in their views of what constitutes positive or negative ESG characteristics. As a result, a Fund may invest in issuers that do not reflect the beliefs and values with respect to ESG of any particular investor. ESG considerations may affect a Fund’s exposure to certain companies or industries and a Fund may forego certain investment opportunities. While the Manager views ESG considerations as having the potential to contribute to a Fund’s long-term performance, there is no guarantee that such results will be achieved.
Principal Risks
This section contains a discussion of the general risks of investing in the Funds. The “Investment Strategies and Policies” section in the SAI also includes more information about the Funds and their investments and the related risks. An investment in the Funds is not insured or guaranteed by the Federal Deposit Insurance Corporation or by any bank or governmental agency. As with any fund, an investment in the Funds involves risks. Each risk noted below is applicable to each Fund unless the specific Fund or Funds are noted in a parenthetical.
Non-Transparent ETF Structure Risk
Unlike most ETFs, the Funds do not provide daily disclosure of their portfolio holdings. Instead, the Funds provide a VIIV, calculated and disseminated every second throughout the trading day. The VIIV is intended to provide investors and other market participants with enough information to allow for an effective arbitrage mechanism that will attempt to keep the market price of the Fund at or close to the underlying NAV per share of the Fund. There is, however, a risk that shares of the Funds may trade at a wider bid/ask spread than ETFs that publish their portfolio holdings daily, especially during periods of market disruption or volatility, and therefore, may cost investors more to trade. There is also a risk that the market price may vary significantly from the VIIV and, thus, the underlying value of the Funds. There is also a risk that, despite not disclosing the portfolio holdings each day, some market participants may seek to use publicly available information, including the VIIV, to identify the Funds’ investment strategies and engage in certain predatory trading practices that may have the potential to harm the Funds.
Trading Issues Risk
Trading in Fund shares on the Listing Exchange may be halted in certain circumstances. If at any time the securities representing 10% or more of a Fund’s portfolio become subject to a trading halt or otherwise do not have readily available market quotations, the Manager will request the Listing Exchange to halt trading of the Fund. There may be other instances that require a trading halt specific to the VIIV. If there is a discrepancy of sufficient magnitude in a Fund’s VIIV calculation, the Manager will request the Listing Exchange to halt trading. This “circuit breaker” is designed to prevent the VIIV from reflecting outlier prices.
Early Close/Trading Halt Risk
An exchange or market may close early or issue trading halts on portfolio securities. In times of market volatility, if trading is halted in some of the securities that a Fund holds, there may be a disconnect between the market price of those securities and the market price of a Fund. If at any time the securities representing 10% or more of a Fund’s portfolio become subject to a trading halt or otherwise do not have readily available market quotations, the Manager will request the Listing Exchange to halt trading on a Fund, meaning that investors would not be able to trade their shares. During any such trading halt, the VIIV would continue to be calculated and disseminated. Trading halts may have a greater impact on a Fund than traditional ETFs because of its lack of transparency. Additionally, the Manager monitors the bid and ask quotations for the securities a Fund holds, and, if it determines that such a security does not have readily available market quotations (such as during an extended trading halt), it will post that fact and the name and weighting of that security in a Fund’s VIIV calculation on the Fund’s web site. This information should permit market participants to calculate the effect of that security on the VIIV calculation, determine their own fair value of the disclosed portfolio security, and better judge the accuracy of that day’s VIIV for a Fund. An extended trading halt in a portfolio security could exacerbate discrepancies between the VIIV and a Fund’s NAV.
Authorized Participant / AP Representative Concentration Risk
The creation and redemption process for a Fund occurs through a Confidential Account with an AP Representative on behalf of an Authorized Participant. Each day, the AP Representative will be given the Basket, allowing the AP Representative to buy and sell positions in the portfolio securities to permit creations or redemptions on the Authorized Participant’s behalf, without disclosing the information to the Authorized Participant. A Fund may have a limited number of institutions that act as Authorized Participants and AP Representatives, none of which are obligated to engage in creation or redemption transactions. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to a Fund and no other Authorized Participant is able to step forward to process creation and/or redemption orders, Fund shares may trade at a discount

Prospectus 14/26

to NAV and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally. The fact that a Fund is offering a novel and unique structure may result in fewer entities willing to act as Authorized Participants and AP Representatives. During times of market stress, Authorized Participants may be more likely to step away from this type of ETF than a traditional ETF.
Market Trading Risk
Although shares of the Funds are listed for trading on one or more stock exchanges, there can be no assurance that an active trading market for such shares will develop or be maintained. There are no obligations of market makers to make a market in a Fund’s shares or of an AP to submit purchase or redemption orders for shares at NAV in aggregations of a specified number of shares (a “Creation Unit”). Decisions by market makers or APs to reduce their role or step away from these activities in times of market stress could inhibit the effectiveness of the arbitrage process in maintaining the relationship between the underlying value of a Fund’s portfolio securities and a Fund’s market price. This reduced effectiveness could result in Fund shares trading at a premium or discount to its NAV. For at least the first three years after launch of each Fund, the Board will promptly meet if, for 30 or more days in any quarter or 15 days in a row, the absolute difference between either the market closing price or the bid/ask price, on one hand, and NAV, on the other, exceeds 1.00% or the bid/ask spread exceeds 1.00%. In such a circumstance, the Board will consider the continuing viability of each Fund, whether shareholders are being harmed, and what, if any, action would be appropriate to among other things, narrow the premium/discount or spread, as applicable. The Board will then decide whether to take any such action. Potential actions may include, but are not limited to, changing lead market makers, listing a Fund on a different exchange, changing the size of Creation Units, changing a Fund’s investment objective or strategy, and liquidating a Fund.
Secondary market trading in Fund shares may be halted by a stock exchange because of market conditions or other reasons and may be subject to trading halts caused by extraordinary market volatility pursuant to “circuit breaker” rules on the stock exchange or market. There can be no assurance that the requirements necessary to maintain the listing or trading of Fund shares will continue to be met or will remain unchanged. In addition, during a “flash crash,” the market prices of the Funds’ shares may decline suddenly and significantly. Such a decline may not reflect the performance of the portfolio securities held by the Funds. Flash crashes may cause APs and other market makers to limit or cease trading in the Funds’ shares for temporary or longer periods. Shareholders could suffer significant losses to the extent that they sell Fund shares at these temporarily low market prices.
When buying or selling shares of the Funds through a broker, you may incur a brokerage commission or other charges determined by your broker. In addition, you may incur the cost of the “spread,” that is, any difference between the bid price and the ask price. The spread varies over time for shares of the Funds based on the Funds’ trading volume and market liquidity and is generally lower if the Funds have a lot of trading volume and market liquidity, and higher if the Funds have little trading volume and market liquidity. During times of market stress, spreads may widen causing investors to pay more.
Premium/Discount Risk
Shares of the Funds are listed for trading on the Listing Exchange and are bought and sold in the secondary market at market prices that may differ from their most recent NAV. The market value of the Funds’ shares will fluctuate, in some cases materially, in response to changes in the Fund’s NAV, the intraday value of the Fund’s holdings, and the relative supply and demand for the Fund’s shares on the Listing Exchange. Although the Funds are intended to provide investors with enough information to allow for an effective arbitrage mechanism that will keep the market price of the Funds at or close to each Fund’s NAV, there is a risk (which may increase during periods of market disruption or volatility) that market prices for Fund shares will vary significantly from each Fund’s NAV. This risk may be greater for the Funds than for traditional ETFs that disclose their full portfolio holdings on a daily basis because the publication of the VIIV does not provide the same level of transparency as the publication of the full portfolio by a fully transparent active ETF. This could cause the Funds’ shares to have wider bid/ask spreads and larger premiums/discounts than fully transparent ETFs using the same investment strategies. During such periods, you may be unable to sell your shares or may incur significant losses if you sell your shares. There are various methods by which investors can purchase and sell shares and various types of orders that may be placed. Investors should consult their financial intermediary before purchasing or selling shares of the Funds. If a shareholder purchases shares at a time when the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses. The Funds cannot predict whether shares will trade above (premium), below (discount) or at NAV.
Investment Risk
An investment in a Fund is subject to investment risk, including the possible loss of the entire principal amount that you invest.
Market Risk
Your investment in Fund shares represents an indirect investment in the securities owned by a Fund. The value of these securities, like other investments, may move up or down, sometimes rapidly and unpredictably. Local, regional or global events such as environmental or natural disasters, war, terrorism, pandemics, outbreaks of infectious diseases, and similar public health threats,

Prospectus 15/26

recessions, or other events could have a significant impact on a Fund and its investments and could result in increased premiums or discounts to a Fund’s NAV.
Mid Cap Securities Risk
There may be greater risk in investing in medium-capitalization companies rather than larger, more established companies due to such factors as inexperienced management and limited product lines or financial resources. It may also be difficult or impossible to liquidate a security position at a time and price acceptable to the Fund because of the potentially less frequent trading of stocks of smaller market capitalization.
Small Cap Securities Risk (Alger 35 ETF)
There may be greater risk investing in small capitalization companies rather than larger, more established companies owing to such factors as more limited product lines or financial resources or lack of management depth. They may be less financially secure than larger, more established companies. They may depend on a small number of key personnel. If a product fails, there are other adverse developments, or if management changes, a Fund’s investment in a small cap company may lose substantial value. In addition, it is more difficult to get information on smaller companies, which tend to be less well known, have shorter operating histories, do not have significant ownership by large investors and are followed by relatively few securities analysts. The securities of small cap companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than larger cap securities or the market as a whole. In addition, it may be difficult or impossible to liquidate a security position at a time and price acceptable to a Fund because of the potentially less frequent trading of stocks of smaller market capitalization. Small cap securities may be particularly sensitive to changes in interest rates, borrowing costs and earnings. Investing in small cap securities requires a longer term view.
Equity Securities Risk
As with any fund that invests in stocks, your investment will fluctuate in value, and the loss of your investment is a risk of investing. Each Fund’s price per share will fluctuate due to changes in the market prices of its investments. Because stock markets tend to move in cycles, stock prices overall may decline. A particular stock’s market value may decline as a result of general market conditions that are not related to the issuing company (e.g., adverse economic conditions or investor sentiment) or due to factors that affect the particular company (e.g., management performance or factors affecting the industry). Also, a Fund’s investments may not grow as fast as the rate of inflation and stocks tend to be more volatile than some other investments you could make, such as bonds.
Small Number of Holdings Risk
A Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a higher number of holdings. At times, the performance of shares of particular companies will lag the performance of other sectors or the market as a whole. This risk is magnified when a fund has a small number of holdings. Generally, the more broadly a fund invests, the more it spreads its risks and potentially reduces the risk of loss and volatility.
Growth Stocks Risk
Prices of growth stocks tend to be higher in relation to their companies’ earnings and may be more sensitive to market, political and economic developments than other stocks, making their prices more volatile. An investment in a Fund may be better suited to investors who seek long-term capital growth and can tolerate fluctuations in their investment’s value. Expected growth may not be realized.
Non-Diversification Risk
Each Fund is a non-diversified investment company. As such, each Fund can invest in fewer individual companies than a diversified investment company. As a result, each Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a diversified portfolio. This risk is magnified compared to a fund that invests more broadly.
Sector Risk
Each Fund may have a significant portion of its assets invested in securities of companies conducting business within a single sector. Companies in the same sector may be similarly affected by economic, regulatory, political or market events or conditions, which may make a Fund more vulnerable to unfavorable developments in that sector than a fund that has a more diversified portfolio. Generally, the more broadly a Fund invests, the more it spreads risk and potentially reduces the risks of loss and volatility.

Prospectus 16/26

Consumer Discretionary Sector Risk – The success of consumer product manufacturers and retailers is tied closely to the performance of domestic and international economies, interest rates, exchange rates, competition, consumer confidence, changes in demographics and consumer preferences. Companies in the consumer discretionary sector depend heavily on disposable household income and consumer spending, and may be strongly affected by social trends and marketing campaigns. These companies may be subject to severe competition, which may have an adverse impact on their profitability.
Health Care Sector Risk – A Fund may be more susceptible to particular risks that may affect companies in the health care sector than if it were invested in a wider variety of companies in unrelated sectors. At times, the performance of such companies will lag the performance of other industries or the broader market as a whole, and the performance of such companies may be more volatile. The healthcare field is subject to substantial governmental regulation and may, therefore, be adversely affected by changes in governmental policies. These factors may lead to limited earnings and/or failing profit margins. As a result, the value of healthcare companies’ securities may fall or fail to rise. In addition, companies in the health care sector can be significantly affected by intense competition, aggressive pricing, technological innovations, product obsolescence, patent considerations, product compatibility and consumer preferences.
Industrials Sector Risk – A Fund may have a significant portion of its assets invested in securities of companies in the industrials sector. Industrial companies are affected by supply and demand both for their specific product or service and for industrials sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. Aerospace and defense companies, a component of the industrials sector, can be significantly affected by government spending policies because companies involved in this industry rely, to a significant extent, on U.S. and foreign government demand for their products and services.
Information Technology Sector Risk – A Fund may be more susceptible to particular risks that may affect companies in the information technology sector and technology-related sectors than if it were invested in a wider variety of companies in unrelated sectors. At times, the performance of such companies will lag the performance of other industries or the broader market as a whole. Certain technology related companies may face special risks that their products or services may not prove to be commercially successful. Technology related companies are also strongly affected by worldwide scientific or technological developments. As a result, their products may rapidly become obsolete. Such companies are also often subject to governmental regulation and may, therefore, be adversely affected by governmental policies. These factors may lead to limited earnings and/or failing profit margins. As a result, the value of technology related companies’ securities may fall or fail to rise. Many technology related companies’ securities have historically been more volatile than other securities, especially over the short term.
Portfolio Turnover (Active Trading) Risk (Alger Mid Cap 40 ETF)
Because the Fund may engage in active trading of portfolio securities, it may incur increased transaction costs and brokerage commissions, both of which can lower the actual return on an investment. Active trading may also increase short-term gains and losses, which may affect the taxes a shareholder has to pay.
Temporary Defensive Investments Risk
In times of adverse or unstable market, economic or political conditions, a Fund may invest up to 100% of its assets in cash and cash equivalents (i.e., short-term U.S. Treasury securities, government money market funds and repurchase agreements) for temporary defensive reasons. This is to attempt to protect a Fund’s assets from a temporary, unacceptable risk of loss, rather than directly to promote the Fund’s investment objective; however, it could reduce the benefit from any upswing in the market. A Fund may not achieve its investment objective, and a Fund’s investments may not be consistent with its principal investment strategies, while in a temporary defensive position.

Prospectus 17/26

Management and Organization
Manager
Fred Alger Management, LLC
100 Pearl Street, 27th Floor
New York, NY 10004
The Manager has been an investment adviser since 1964, and manages investments totaling (at December 31, 2021) approximately $43.8 billion. The Manager is responsible for providing a continuous investment program for each Fund, making decisions with respect to all purchases and sales of assets, and placing orders for the investment and reinvestment of Fund assets. The Manager also arranges for transfer agency, custody and all other services necessary for each Fund to operate. Additionally, the Manager provides certain administrative services to the Funds. These management responsibilities are subject to the supervision of the Board. A discussion of the Trustees’ basis for approving the management contract with respect to each Fund is available in the Funds’ semi-annual report to shareholders for its most recent June 30 fiscal period. The Funds pay the Manager management fees at the below annual rates based on a percentage of average daily net assets. The actual rate paid as a percentage of average daily net assets, for the fiscal year ended December 31, 2021, is set forth below under the heading “Actual Rate.”
Fund
Annual Fee as a Percentage of Average Daily Net Assets
Actual Rate
Alger Mid Cap 40 ETF
.50%
.50%
Alger 35 ETF
.45%
.45%
The Manager has made contractual commitments to each Fund to waive its fee and/or reimburse the Fund for expenses to the extent necessary to maintain the Fund’s total annual operating expenses at or below certain levels. The limitations do not apply to acquired fund fees and expenses, taxes, brokerage and extraordinary expenses, to the extent applicable. Each agreement runs through April 30, 2023 and may only be amended or terminated prior to its expiration date by agreement between the Manager and the Board, and will terminate automatically in the event of termination of the Investment Management Agreement. Such waiver/reimbursement arrangements are as follows: Alger Mid Cap 40 ETF – 0.60%; Alger 35 ETF – 0.55%. The Manager may, during the term of the contract, recoup any fees waived or expenses reimbursed pursuant to the contract; however, a Fund will only make repayments to the Manager if such repayment does not cause a Fund’s expense ratio after the repayment is taken into account, to exceed both (i) the expense cap in place at the time such amounts were waived or reimbursed, and (ii) a Fund’s current expense cap. Such recoupment is limited to two years from the date the amount is initially waived or reimbursed.
Portfolio Managers Responsible for Day-to-Day Management of the Funds
Fund
Portfolio Managers
Since
Alger Mid Cap 40 ETF
Amy Y. Zhang, CFA
Inception (February
2021)
Alger 35 ETF
Dan C. Chung, CFA
Inception (May 2021)
Mr. Chung has been employed by the Manager since 1994. He became a portfolio manager in 2000, Chief Investment Officer in 2001, President in 2003, and Chief Executive Officer in 2006.
Ms. Zhang has been employed by the Manager since 2015 as portfolio manager. She became an Executive Vice President in 2020 and was previously Senior Vice President. Prior to joining the Manager, she was a Managing Director and Senior Portfolio Manager at Brown Capital Management, Inc. from 2002 to 2015.
The SAI provides additional information about the portfolio managers’ compensation, other accounts that they manage, and their ownership of securities of the Fund(s) that they manage.
Investing in the Funds
Buying and Selling Shares
Shares of the Funds may be acquired or redeemed directly from the Funds only in Creation Units or multiples thereof. Only an Authorized Participant may engage in creation and redemption transactions directly with a Fund. Once created, shares of the Funds generally trade in the secondary market in amounts less than a Creation Unit. Individual Fund shares may only be bought and sold in the secondary market through a broker or dealer at market price.
Shares of the Funds are listed on the Listing Exchange, a national securities exchange, for trading during the trading day. Shares can be bought and sold throughout the trading day like shares of other publicly traded companies. The Trust does not impose any minimum investment for shares of the Funds purchased on an exchange.

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The Funds’ primary listing exchange is NYSE Arca, Inc., which is open for trading Monday through Friday and is closed on weekends and the following holidays: New Year’s Day, Martin Luther King, Jr. Day, Washington’s Birthday, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day.
Additional information regarding the purchase and redemption of Fund shares can be found in the “Creation and Redemption of Creation Units” section of the SAI.
Book Entry
Shares of the Funds are held in book-entry form, which means that no share certificates are issued. The Depository Trust Company (“DTC”) or its nominee is the record owner of all outstanding shares of the Funds.
Investors owning shares of the Funds are beneficial owners as shown on the records of DTC or its participants. DTC serves as the securities depository for shares of the Funds. DTC participants include securities brokers and dealers, banks, trust companies, clearing corporations and other institutions that directly or indirectly maintain a custodial relationship with DTC. As a beneficial owner of shares, you are not entitled to receive physical delivery of stock certificates or to have shares registered in your name, and you are not considered a registered owner of shares. Therefore, to exercise any right as an owner of shares, you must rely upon the procedures of DTC and its participants. These procedures are the same as those that apply to any other securities that you hold in book-entry or “street name” form.
Frequent Trading
The Board has not adopted a policy of monitoring for frequent purchases and redemptions of Fund shares. The Board believes that a frequent trading policy is unnecessary because Fund shares are listed for trading on a national securities exchange. Therefore, it is unlikely that a shareholder could take advantage of a potential arbitrage opportunity presented by a lag between a change in the value of the Funds’ portfolio securities after the close of the primary markets for the Funds’ portfolio securities and the reflection of that change in the Funds’ NAVs, because the Funds generally sell and redeem their shares directly through transactions that are in-kind and/or for cash, subject to the conditions described in the “Creation and Redemption of Creation Units” section of the SAI.
Investments by Other Investment Companies
Section 12(d)(1) of the Investment Company Act of 1940, as amended (the “1940 Act”) restricts investments by investment companies in the securities of other investment companies. Registered investment companies are permitted to invest in the Funds beyond the limits set forth in Section 12(d)(1), subject to certain terms and conditions set forth in SEC rules. In order for an unaffiliated registered investment company to invest in shares of the Funds beyond the limitations of Section 12(d)(1) pursuant to Rule 12d1-4 under the 1940 Act, the registered investment company must, among other items, enter into an agreement with the Trust.
Share Price and Distributions
Share Price
The secondary market price of shares trading on the Listing Exchange is based on a current bid/ask market. The secondary market price of a Fund’s shares generally differs from a Fund’s daily NAV and, like the price of all traded securities, is affected by market forces such as supply and demand, economic conditions and other factors such as the current VIIV (described below).
Because the shares are traded in the secondary market, a broker may charge a commission to execute a transaction in shares, and an investor also may incur the cost of the spread between the price at which a dealer will buy shares and the somewhat higher price at which a dealer will sell shares.
The Verified Intraday Indicative Value
Information regarding the intraday value of shares of the Funds, also known as the VIIV, is calculated and disseminated every second throughout each trading day by the Listing Exchange or by market data vendors or other information providers. It is available on alger.com and on websites that publish updated market quotations during the trading day, like Yahoo Finance (https://finance.yahoo.com), by searching for a Fund’s ticker plus the extension IV, though some websites require their own unique extensions. The VIIV is based on the current market value of the securities in a Fund’s portfolio that day. The VIIV is intended to provide investors and other market participants with a highly correlated per share value of the underlying portfolio that can be compared to the current market price. To calculate the VIIV, the Funds employ two separate calculation engines to provide two independently calculated sources of intraday indicative values (calculation engines). The Funds then use a pricing verification agent to continuously compare the data from both the calculations engines on a real time basis. If during the process of real time price verification, the indicative values from the calculation engines differ by more than 25 basis points for 60 consecutive

Prospectus 19/26

seconds, the pricing verification agent will alert the Manager, which will request that the Listing Exchange halt trading of a Fund’s shares until the two indicative values come back into line.
The Funds have adopted policies and procedures concerning the calculation of their VIIV. In accordance with these procedures, the portfolio used for calculating the VIIV will be the same portfolio used to calculate the Fund’s NAV for that business day. The VIIV will be calculated to the nearest penny by dividing the “Intraday Fund Value” as of the time of the calculation by the number of total Fund shares outstanding. Intraday Fund Value is the sum of a Fund’s assets (e.g., the amount of cash and cash equivalents held in a Fund’s portfolio, the current value of the securities positions in the Fund’s portfolio, plus any accrued interest, and declared but unpaid dividends) minus all accrued liabilities. All portfolio securities will be valued by the calculation engines throughout the trading day at the mid-point between the current national best bid and national best offer as disseminated by the Consolidated Quotation System or UTP Plan Securities Information Processor.
Although the VIIV is intended to provide investors with enough information to allow for an effective arbitrage mechanism that will keep the market price of the Funds at or close to the underlying NAV per share of the Funds, there is a risk (which may increase during periods of market disruption or volatility) that market prices will vary significantly from the underlying NAV of the Funds. ETFs trading on the basis of a published VIIV may trade at a wider bid/ask spread than ETFs that publish their portfolios on a daily basis, especially during periods of market disruption or volatility, and therefore, may cost investors more to trade. Although the Funds seek to benefit from not disclosing its portfolio information daily, market participants may attempt to use the VIIV to identify a Fund’s trading strategy, which if successful, could result in such market participants engaging in certain predatory trading practices that may have the potential to harm the Fund and its shareholders.
If at any time 10% or more of the securities in a Fund’s portfolio become subject to a trading halt or otherwise do not have readily available market quotations, the Manager will ask the Listing Exchange to halt trading of a Fund. Trading halts may have a greater impact on these Funds compared to other ETFs because it is less transparent.
Net Asset Value
The value of one share is its net asset value, or “NAV.” Each Fund values its financial instruments at fair value using independent dealers or pricing services under policies approved by the Board. Investments held by the Funds are valued on each day the New York Stock Exchange (the “NYSE”) is open, as of the close of the NYSE (normally 4:00 p.m. Eastern Time).
NAV of a Fund is computed by adding together the value allocable to a Fund’s investments plus cash and other assets, subtracting applicable liabilities and then dividing the result by the number of outstanding shares of the Fund.
Investments in money market funds and short-term securities held by a Fund with maturities of 60 days or less are valued at their amortized cost which does not take into account unrealized capital gains or losses and approximates market value.
Equity securities are valued at the last quoted sales price or official closing price on the primary market or exchange on which they are traded as reported by an independent pricing service. In the absence of quoted sales, such securities are valued at the bid price or, in the absence of a recent bid price, the equivalent as obtained from one or more of the major market makers for the securities to be valued.
Securities for which market quotations are not readily available are valued at fair value pursuant to procedures approved by the Board.
Each Fund’s valuation techniques are generally consistent with either the market or the income approach to fair value. The market approach considers prices and other relevant information generated by market transactions involving identical or comparable assets to measure fair value. The income approach converts future amounts to a current, or discounted, single amount. These fair value measurements are determined on the basis of the value indicated by current market expectations about such future events. Because of the inherent uncertainty and often limited markets for restricted securities, the valuations assigned to such securities by a Fund may significantly differ from the valuations that would have been assigned by the Fund had there been an active market for such securities.
Valuation processes are determined by a Valuation Committee (“Valuation Committee”) authorized by the Board and comprised of representatives of the Manager and officers of the Trust. The Valuation Committee reports its fair valuation determinations and related valuation information to the Board. The Board is responsible for approving the valuation policy and procedures. While the meetings are held on an as-needed basis, the Valuation Committee generally meets quarterly to review and evaluate the effectiveness of the procedures for making fair value determinations. The Valuation Committee considers, among other things, pricing comparisons between primary and secondary price sources, the outcome of price challenges put to each Fund’s pricing vendor, and variances between transactional prices and the previous day’s price.
The Funds’ website, which is publicly accessible at no charge, contains, on a per share basis, the prior business day’s NAV and market closing price or bid/ask price of the shares, a calculation of the premium or discount of the market closing price or bid/ask

Prospectus 20/26

price against such NAV, and any other required information about premiums and discounts. The website also discloses the Funds’ median bid/ask spread information for the most recent 30-day period on a rolling basis.
Taxes
The following discussion is a very general summary of the federal income tax consequences of holding shares in the Funds. This summary applies only to shareholders that are U.S. residents for tax purposes and hold their shares as capital assets. This summary does not address shareholders subject to special rules, such as those who hold shares of a Fund through an IRA, 401(k) plan, or other tax-advantaged account, or non-U.S. shareholders. The discussion is limited to federal income tax matters, and does not address state, local, foreign or non-income taxes. Further information regarding tax considerations applicable to the Funds, to their qualification and taxation as regulated investment companies for U.S. federal income tax purposes, and to the acquisition, ownership, and disposition of shares in the Funds is included in the SAI. Because each shareholder’s circumstances are different and special tax rules may apply, shareholders should consult their tax advisors about federal, state, local, foreign and non-income tax considerations that may be relevant to their particular situation.
Distributions
The Funds declare and pay dividends and distributions annually. Distributions of net capital gain reported by the Funds as capital gain dividends are taxable to shareholders as long-term capital gain regardless of how long a shareholder has owned its shares. Noncorporate shareholders ordinarily pay tax at reduced rates on long-term capital gain. Distributions of investment income that the Funds report as “qualified dividend income” may be eligible to be taxed to noncorporate shareholders at the reduced rates applicable to long-term capital gain if certain requirements are satisfied.
If a Fund’s distributions exceed current and accumulated earnings and profits, the excess will generally be considered a return of capital. A return of capital distribution generally will not be taxable but will reduce the shareholder's cost basis and will result in a higher capital gain or lower capital loss when those shares on which the distribution was received are sold. Once a shareholder's cost basis is reduced to zero, further distributions will be treated as capital gain.
A shareholder may want to avoid buying shares shortly before a Fund is about to declare a dividend or capital gain distribution because the dividend or distribution will be taxable to the shareholder even though it may economically represent a return of a portion of the shareholder’s investment.
Sale of Shares of a Fund
Capital gain or loss realized upon a sale of shares of a Fund generally is treated as long-term gain or loss if the shares have been held for more than one year. Any capital gain or loss realized upon a sale of shares of a Fund held for one year or less generally is treated as short-term gain or loss, except that any capital loss on the sale of shares held for six months or less is treated as long-term capital loss to the extent that capital gain dividends were paid with respect to those shares.
If a loss is realized on the sale of shares of a Fund, the reinvestment in additional shares of that Fund within 30 days before or after the sale generally will be subject to the “wash sale” rules, in which case the shareholder’s ability to report a loss would be deferred.
Net Investment Income Tax
A Medicare contribution tax is imposed at the rate of 3.8% on all or a portion of the net investment income of U.S. individuals with income exceeding specified thresholds, and on all or a portion of undistributed net investment income of certain estates and trusts. Net investment income for this purpose generally includes dividends and capital gain distributions paid by the Funds and gain on the redemption or sale of shares of a Fund.
Withholding
A shareholder may be subject to backup withholding at the applicable federal withholding tax rate on taxable dividends, capital gains distributions and proceeds from the sale of shares of a Fund if the shareholder fails to certify that their social security number or tax identification number is correct and that they are not subject to withholding.
Creation Units
An Authorized Participant that exchanges securities for Creation Units generally will recognize a gain or a loss, except as described in the subsequent paragraph. The gain or loss will be equal to the difference between the market value of the Creation Units at the time and the sum of the Authorized Participant’s aggregate basis in the securities surrendered plus the amount of cash paid for the Creation Units. An Authorized Participant that redeems Creation Units generally will recognize a gain or (subject to the subsequent sentence) loss equal to the difference between the Authorized Participant’s basis in the Creation Units and the sum of the aggregate market value of any securities received plus the amount of any cash received for the Creation Units. It is unclear

Prospectus 21/26

whether any loss realized upon an exchange of securities for Creation Units would be immediately deductible or would be required to be deferred under the “wash sale” rules or on the basis that there has been no significant change in economic position.
Any gain or loss realized on the creation of Creation Units will be treated as capital gain or loss if the Authorized Participant holds the securities exchanged therefor as capital assets, and generally will be treated as long-term capital gain or loss if the securities exchanged for such Creation Units have been held for more than one year. Similarly, any gain or loss realized upon a redemption of Creation Units will be treated as capital gain or loss if the Authorized Participant holds the shares of the Fund comprising the Creation Units as capital assets, and otherwise will be ordinary income or loss, and generally will be treated as long-term capital gain or loss if the Fund shares comprising the Creation Units have been held for more than one year, and otherwise generally will be short-term capital gain or loss. Any capital loss realized upon a redemption of Creation Units held for six months or less will be treated as a long-term capital loss to the extent of any amounts treated as distributions to the applicable Authorized Participant of long-term capital gain with respect to the Creation Units (including any amounts credited to the Authorized Participant as undistributed capital gains).
The Funds have the right to reject an order for Creation Units if the Authorized Participant (or group of Authorized Participants) would, upon obtaining the Fund shares so ordered, own 80% or more of the outstanding shares of the relevant Fund and if, pursuant to section 351 of the Internal Revenue Code, the Fund would have a basis in any securities different from the market value of such securities on the date of deposit. The Funds also have the right to require information necessary to determine beneficial Fund shares ownership for purposes of the 80% determination. If the Fund does issue Creation Units to an Authorized Participant (or group of Authorized Participants) that would, upon obtaining the shares so ordered, own 80% or more of the outstanding shares of the Fund, the Authorized Participant (or group of Authorized Participants) generally would not recognize gain or loss upon the exchange of securities for Creation Units.
Authorized Participants purchasing or redeeming Creation Units should consult their own tax advisors with respect to the tax treatment of any creation or redemption transaction.
Additional Information
Premium/Discount Information
Each Fund’s website includes additional quantitative information that is updated on a daily basis, including, on a per share basis for each Fund, the prior business day’s NAV and market closing price or bid/ask price and a calculation of the premium or discount of the market closing price or bid/ask price against such NAV. In addition, the Funds post a table showing the number of days the Funds’ shares traded at a premium or a discount and a line graph showing the Fund share premiums or discounts during the most recently completed calendar year and most recently completed calendar quarters since that year (or the life of the fund, if shorter). If a Fund’s premium or discount is greater than 2% for more than seven consecutive trading days, the website will contain disclosure to that effect along with a discussion of the factors that are reasonably believed to have materially contributed to the premium or discount.
Service, Distribution, and Administrative Fees
Rule 12b-1 under the 1940 Act permits investment companies that adopt a written plan to pay certain expenses associated with the distribution of their shares out of fund assets. The Board has adopted a 12b-1 plan that allows the Funds to pay annual fees not to exceed 0.25% to Fred Alger & Company, LLC (the “Distributor”), the Funds’ distributor, for distribution and individual shareholder services. However, the Board has determined not to authorize payment of a 12b-1 plan fee at this time.
Because these fees are paid out of a Fund’s assets on an ongoing basis, to the extent that a fee is authorized, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges.
The Manager or its affiliates (collectively, “Alger”) may make payments to intermediaries for various additional services, other expenses and/or the intermediaries’ distribution of the Funds out of their profits or other available sources. Such payments may be made for one or more of the following: (1) distribution, which may include expenses incurred by intermediaries for their sales activities with respect to the Funds, such as preparing, printing and distributing sales literature and advertising materials and compensating registered representatives or other employees of such financial intermediaries for their sales activities, as well as the opportunity for the Funds to be made available by such intermediaries; (2) shareholder services, such as providing individual and custom investment management services to clients of the financial intermediaries; and (3) marketing and promotional services, including business planning assistance, educating personnel about the Funds, and sponsorship of sales meetings, which may include covering costs of providing speakers, meals and other entertainment. Alger may pay partnership and/or sponsorship fees to support seminars, conferences, and other programs designed to educate intermediaries about the Funds and may cover the expenses associated with attendance at such meetings, including travel costs. Alger also may pay fees related to obtaining data regarding intermediary or financial professional activities to assist Alger with sales reporting, business intelligence, and training and education opportunities. These payments and activities are intended to provide an incentive to intermediaries to sell the Funds by educating them about the Funds and helping defray the costs associated with offering the Funds. These payments

Prospectus 22/26

may create a conflict of interest by influencing the intermediary to recommend the Funds over another investment. Ask your salesperson or visit your financial intermediary’s website for more information. The amount of any payments described by this paragraph is determined by Alger, and all such amounts are paid out of their available assets, and not paid by you or the Funds. As a result, the total expense ratio of the Funds will not be affected by any such payments.
Disclosure of Portfolio Holdings
For a discussion of each Fund’s policies and procedures regarding the selective disclosure of its portfolio holdings, please see the SAI. Alger Mid Cap 40 Fund makes publicly available its month-end top 10 holdings with a 10-day lag and its month-end full portfolio with a 60-day lag on its website www.alger.com.  Alger 35 Fund makes publicly available its month-end top 5 holdings with a 10-day lag and its month-end full portfolio with a 60-day lag on its website www.alger.com.

Prospectus 23/26

Hypothetical Investment and Expense Information
Hypothetical investment and expense information, which is not required to be included in this Prospectus by the SEC, is presented in the chart below. This information is intended to reflect the annual and cumulative effect of a Fund’s expenses, including management fees and other Fund costs, on each Fund’s total return based on NAV over a 10-year period. The example assumes the following:
You invest $10,000 in the Fund and hold it for the entire 10-year period; and
Your investment has a 5% return before expenses each year.
There is no assurance that the annual expense ratio will be the expense ratio for the Fund for any of the years shown. To the extent that the Manager and any of its affiliates alter any fee waivers and/or expense reimbursements pursuant to a voluntary or contractual arrangement, your actual expenses may be higher or lower. This is only a hypothetical presentation made to illustrate what expenses and returns would be under the above scenarios. Your actual expenses and returns are likely to differ (higher or lower) from those shown below.
Alger Mid Cap 40 ETF
 
Year 1
Year 2
Year 3
Year 4
Year 5
Year 6
Year 7
Year 8
Year 9
Year 10
Expense Ratio
0.60%
0.60%
1.23%
1.23%
1.23%
1.23%
1.23%
1.23%
1.23%
1.23%
Cumulative Gross Return
5.00%
10.25%
15.76%
21.55%
27.63%
34.01%
40.71%
47.75%
55.13%
62.89%
Cumulative Net Return
4.40%
8.99%
13.10%
17.37%
21.79%
26.38%
31.15%
36.09%
41.22%
46.55%
End Investment Balance
$10,440
$10,899
$11,310
$11,737
$12,179
$12,638
$13,115
$13,609
$14,122
$14,655
Annual Expense
$61
$64
$137
$142
$147
$153
$158
$164
$171
$177
Alger 35 ETF
 
Year 1
Year 2
Year 3
Year 4
Year 5
Year 6
Year 7
Year 8
Year 9
Year 10
Expense Ratio
0.55%
0.55%
1.85%
1.85%
1.85%
1.85%
1.85%
1.85%
1.85%
1.85%
Cumulative Gross Return
5.00%
10.25%
15.76%
21.55%
27.63%
34.01%
40.71%
47.75%
55.13%
62.89%
Cumulative Net Return
4.45%
9.10%
12.53%
16.08%
19.74%
23.51%
27.40%
31.41%
35.55%
39.82%
End Investment Balance
$10,445
$10,910
$11,253
$11,608
$11,974
$12,351
$12,740
$13,141
$13,555
$13,982
Annual Expense
$56
$59
$205
$211
$218
$225
$232
$239
$247
$255

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Financial Highlights
The financial highlights tables are intended to help you understand each Fund’s financial performance for the periods shown. Certain information reflects financial results for a single Fund share. The total returns in the tables represent the rate that an investor would have earned or lost on an investment in the Fund (assuming reinvestment of all dividends and distributions). The information in the tables for the fiscal years ended December 31 has been audited by Deloitte & Touche LLP, whose report, along with each Fund’s financial statements, is included in the Annual Report, which is available upon request.
The Alger ETF Trust Financial Highlights for a share outstanding throughout the period
Alger Mid Cap 40 ETF
From 2/26/21
(commencement
of operations)
to 12/31/21 (i)
Net asset value, beginning of period
$20.00
Income from Investment Operations:
 
Net investment loss (ii)
(0.08)
Net realized and unrealized gain on investments
1.15
Total from investment operations
1.07
Distributions from net realized gains
(1.07)
Net asset value, end of period
$20.00
Net asset value, Total return
5.62%
Ratios/Supplemental Data:
 
Net assets, end of period (000’s omitted)
$38,750
Ratio of gross expenses to average net assets
1.23%
Ratio of expense reimbursements to average net assets
(0.63)%
Ratio of net expenses to average net assets
0.60%
Ratio of net investment loss to average net assets
(0.43)%
Portfolio turnover rate (iii)
417.06%
(i)
Ratios have been annualized; total return and portfolio turnover rate have not been annualized.
(ii)
Amount was computed based on average shares outstanding during the period.
(iii)
Portfolio turnover excludes the value of portfolio securities received or delivered as a result of in-kind fund share transactions.

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The Alger ETF Trust Financial Highlights for a share outstanding throughout the period
Alger 35 ETF
From 5/3/21
(commencement
of operations)
to 12/31/21 (i)
Net asset value, beginning of period
$20.00
Income from Investment Operations:
 
Net investment loss (ii)
(0.04)
Net realized and unrealized gain on investments
0.44
Total from investment operations
0.40
Net asset value, end of period
$20.40
Net asset value, Total return
2.00%
Ratios/Supplemental Data:
 
Net assets, end of period (000’s omitted)
$13,517
Ratio of gross expenses to average net assets
1.85%
Ratio of expense reimbursements to average net assets
(1.30)%
Ratio of net expenses to average net assets
0.55%
Ratio of net investment loss to average net assets
(0.28)%
Portfolio turnover rate (iii)
99.20%
(i)
Ratios have been annualized; total return and portfolio turnover rate have not been annualized.
(ii)
Amount was computed based on average shares outstanding during the period.
(iii)
Portfolio turnover excludes the value of portfolio securities received or delivered as a result of in-kind fund share transactions.

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For Fund Information:
By Telephone:
(800) 223-3810
By Mail:
Alger Family of Funds
c/o Brown Brothers Harriman & Co.
50 Post Office Square
Boston, Massachusetts 02110
Online
Text versions of Fund documents can be downloaded from the following sources:
 
• The Funds: www.alger.com
 
• SEC (EDGAR data base): www.sec.gov
Statement of Additional Information
For more detailed information about each Fund and its policies, please read each Fund’s SAI, which is incorporated by reference into (is legally made a part of) this Prospectus. You can get a free copy of the SAI by calling the Funds’ toll-free number, at the Funds’ website at www.alger.com or by writing to the address above. The SAI is on file with the SEC.
Annual and Semi-Annual Reports
Additional information about a Fund’s investments is available in the Fund’s annual and semi-annual reports to shareholders. In each Fund’s annual report you will find a discussion of the market conditions and investment strategies that significantly affected the Fund’s performance during the period covered by the report. You can receive free copies of these reports by calling the Funds’ toll-free number, at the Funds’ website at www.alger.com or by writing to the address above. Copies can also be obtained for a duplicating fee by E-mail request to [email protected]. Fund documents are also available on the EDGAR database on the SEC’s Internet site at www.sec.gov.
Quarterly Fund Holdings
Each Fund’s most recent month end portfolio holdings are available approximately sixty days after month-end on the Fund’s website at www.alger.com. Each Fund also files its complete schedule of portfolio holdings with the SEC for the first and third quarter of each fiscal year as an exhibit to Form N-PORT and semi-annually on Form N-CSR. Forms N-PORT and N-CSR are available online on the SEC’s website at www.sec.gov. A copy of the most recent quarterly holdings may also be obtained from the Funds by calling (800) 223-3810.
Alger Electronic Delivery Service
The Funds provide you with an enhancement of your ability to access Fund documents online. When Fund documents such as prospectuses and annual and semi-annual reports are available, you will be sent an e-mail notification with a link that will take you directly to the Fund information on the Funds’ website. To sign up for this free service, enroll at www.icsdelivery.com/alger.
ActiveShares® Methodology
The Funds utilize the ActiveShares® methodology licensed from Precidian Investments, LLC (“Precidian”). Precidian’s products and services are protected by domestic and international intellectual property protections, including, without limitation, the following issued patents and pending patent applications: 7813987, 8285624, 7925562, 13011746, 14528658, 14208966, 16196560.
Distributor: Fred Alger & Company, LLC
The Alger ETF Trust    SEC File #811-23603
ETF