LOGO    FEBRUARY 28, 2023
 
 
 
 
Prospectus
 
BlackRock Liquidity Funds  |  Select Shares
 
  FedFund
Select: BFBXX
 
  T-Fund
Select: BSLXX
 
  Treasury Trust Fund
Select: TSLXX
 
This Prospectus contains information you should know before investing, including information about risks. Please read it before you invest and keep it for future reference.
The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this Prospectus. Any representation to the contrary is a criminal offense.
 
Not FDIC Insured • May Lose Value • No Bank Guarantee

Table of Contents
 
 
   Key facts and details about the Funds listed in this prospectus, including investment objectives, principal investment strategies, principal risk factors, fee and expense information, and historical performance information   
   Key Facts About FedFund      3  
   Key Facts About T-Fund      7  
   Key Facts About Treasury Trust Fund      11  
   Information about how each Fund invests, including investment objectives, investment processes, principal strategies and risk factors   
   How Each Fund Invests      15  
   Investment Risks      17  
   Information about account services, shareholder transactions, and distribution and other payments   
   Valuation of Fund Investments and Price of Fund Shares      20  
   Purchase of Shares      20  
   Redemption of Shares      22  
   Additional Purchase and Redemption Information      23  
   Distribution and Shareholder Servicing Payments      23  
   Dividends and Distributions      24  
   Federal Taxes      24  
   State and Local Taxes      25  
   Information About BlackRock   
   BlackRock      26  
   Conflicts of Interest      27  
   Master/Feeder Structure      28  
   Financial Performance of the Funds      29  
   Certain Fund Policies      32  
   Glossary of Investment Terms      33  
   Funds and Service Providers      34  
   How to Contact BlackRock Liquidity Funds      Inside Back Cover  
   Additional Information      Back Cover  

Fund Overview
 
Key Facts About FedFund
Investment Objective
 
The investment objective of FedFund (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Select Shares of FedFund. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Select Shares
Management Fee
     0.18%
Distribution (12b‑1) Fees
     0.35%
Other Expenses
     0.51%
Shareholder Servicing Fees
     0.50%              
Miscellaneous/Other Expenses
     0.01%              
    
 
Total Annual Fund Operating Expenses
     1.04%
Fee Waivers and/or Expense Reimbursements1,2
     (0.04)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1,2
     1.00%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 26, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.17% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
 
2 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 26, the Fund’s distributor and the Financial Intermediary party to the waiver agreement have contractually agreed to waive Distribution Fees and/or Shareholder Servicing Fees so that the Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements of the Select Shares do not exceed 1.00% of average daily net assets through February 29, 2024. The agreement renews automatically for successive one year periods and may be terminated by any party upon written notice 75 days prior to the commencement of a successive one year period.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year    3 Years    5 Years    10 Years
Select Shares
   $102    $327    $570    $1,267
Principal Investment Strategies of the Fund
 
FedFund invests at least 99.5% of its total assets in cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, and repurchase agreements secured by such obligations or cash. The yield of the Fund is not directly tied to the federal funds rate. The Fund invests in securities maturing in 
 
3 - FedFund

397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. The Fund may invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis. 
The Fund will invest, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, and repurchase agreements secured by such obligations. This policy is a non-fundamental policy of the Fund and the Fund will not change the policy without providing shareholders with at least 60 days’ prior notice of any change in the policy. 
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees. 
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
 
 
Repurchase Agreements Risk — If the other party to a repurchase agreement defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security and the market value of the security declines, the Fund may lose money. 
 
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
 
4 - FedFund

An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Stable Net Asset Value Risk — The Fund may not be able to maintain a stable net asset value (“NAV”) of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
Performance Information
 
The information shows you how FedFund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
FedFund
Select Shares
ANNUAL TOTAL RETURNS
As of 12/31
 
LOGO  
 
5 - FedFund 

During the ten-year period shown in the bar chart, the highest return for a quarter was 0.64% (quarter ended December 31, 2022) and the lowest return for a quarter was 0.00% (quarter ended June 30, 2020). 
For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    10 Years
FedFund—Select Shares
     0.94%    0.65%    0.34%
       7-Day Yield
As of December 31, 2022
FedFund—Select Shares
     3.20%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
FedFund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).
Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of FedFund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. Purchase orders and redemption orders must be transmitted through a brokerage account (an “Account”) with your Financial Intermediary. The Financial Intermediary may impose minimum investment requirements for your Account. The Fund’s officers reserve the right to vary or waive any minimum and subsequent investment requirements.
Tax Information
 
Dividends and distributions paid by FedFund may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of FedFund through a Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
6 - FedFund

Fund Overview
 
Key Facts About T‑Fund
Investment Objective
 
The investment objective of T‑Fund (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Select Shares of T‑Fund. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Select Shares
Management Fee
     0.18%
Distribution (12b‑1) Fees
     0.35%
Other Expenses
     0.51%
Shareholder Servicing Fees
     0.50%              
Miscellaneous/Other Expenses
     0.01%              
    
 
Total Annual Fund Operating Expenses
     1.04%
Fee Waivers and/or Expense Reimbursements1,2
     (0.04)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1,2
     1.00%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 26, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.17% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
 
2 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 26, the Fund’s distributor and the Financial Intermediary party to the waiver agreement have contractually agreed to waive Distribution Fees and/or Shareholder Servicing Fees so that the Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements of the Select Shares do not exceed 1.00% of average daily net assets through February 29, 2024. The agreement renews automatically for successive one year periods and may be terminated by any party upon written notice 75 days prior to the commencement of a successive one year period.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year    3 Years    5 Years    10 Years
Select Shares
   $102    $327    $570    $1,267
 
7 - T-Fund

Principal Investment Strategies of the Fund
 
T-Fund invests at least 99.5% of its total assets in cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Treasury, and repurchase agreements secured by such obligations or cash. The Fund invests in securities maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. The Fund may invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis.
The Fund will invest, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in U.S. Treasury bills, notes and other obligations of the U.S. Treasury, and repurchase agreements secured by such obligations. This policy is a non-fundamental policy of the Fund and the Fund will not change the policy without providing shareholders with at least 60 days’ prior notice of any change in the policy.
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees.
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
Repurchase Agreements Risk — If the other party to a repurchase agreement defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security and the market value of the security declines, the Fund may lose money 
 
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic 
 
8 - T-Fund

and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Stable Net Asset Value Risk — The Fund may not be able to maintain a stable net asset value (“NAV”) of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity. 
 
 
U.S. Government Obligations Risk — Certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
Performance Information
 
The information shows you how T-Fund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
T‑Fund
Select Shares
ANNUAL TOTAL RETURNS
As of 12/31
 
LOGO  
 
9 - T-Fund 

During the ten-year period shown in the bar chart, the highest return for a quarter was 0.65% (quarter ended December 31, 2022) and the lowest return for a quarter was 0.00% (quarter ended March 31, 2022). 
For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    10 Years
T‑Fund—Select Shares
     0.95%    0.64%    0.33%
       7-Day Yield
As of December 31, 2022
T‑Fund—Select Shares
     3.20%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
T‑Fund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).
Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of T-Fund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. Purchase orders and redemption orders must be transmitted through a brokerage account (an “Account”) with your Financial Intermediary. The Financial Intermediary may impose minimum investment requirements for your Account. The Fund’s officers reserve the right to vary or waive any minimum and subsequent investment requirements.
Tax Information
 
Dividends and distributions paid by T-Fund may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of T-Fund through a Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
10 - T-Fund

Fund Overview
 
Key Facts About Treasury Trust Fund
Investment Objective
 
The investment objective of Treasury Trust Fund (the “Fund”), a series of BlackRock Liquidity Funds (the “Trust”), is to seek current income as is consistent with liquidity and stability of principal.
Fees and Expenses of the Fund
 
This table describes the fees and expenses that you may pay if you buy, hold and sell Select Shares of Treasury Trust Fund. You may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC (“BlackRock”) and its affiliates) (each, a “Financial Intermediary”), which are not reflected in the table and example below.
Annual Fund Operating Expenses
(expenses that you pay each year as a percentage of the value of your investment)
 
       Select Shares
Management Fee
     0.18%
Distribution (12b‑1) Fees
     0.35%
Other Expenses
     0.51%
Shareholder Servicing Fees
     0.50%              
Miscellaneous/Other Expenses
     0.01%              
    
 
Total Annual Fund Operating Expenses
     1.04%
Fee Waivers and/or Expense Reimbursements1,2
     (0.04)%
    
 
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements1,2
     1.00%
    
 
1 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 26, BlackRock, the Fund’s investment manager, has contractually agreed to waive fees and/or reimburse ordinary operating expenses in order to keep combined Management Fees and Miscellaneous/Other Expenses (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) from exceeding 0.17% of average daily net assets through June 30, 2024. The agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
 
2 
As described in the “Management of the Funds” section of the Fund’s prospectus beginning on page 26, the Fund’s distributor and the Financial Intermediary party to the waiver agreement have contractually agreed to waive Distribution Fees and/or Shareholder Servicing Fees so that the Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements of the Select Shares do not exceed 1.00% of average daily net assets through February 29, 2024. The agreement renews automatically for successive one year periods and may be terminated by any party upon written notice 75 days prior to the commencement of a successive one year period.
Example:
This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
 
     1 Year    3 Years    5 Years    10 Years
Select Shares
   $102    $327    $570    $1,267
 
11 - Treasury Trust Fund

Principal Investment Strategies of the Fund
 
Treasury Trust Fund invests 100% of its total assets in cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Treasury. The Fund invests in securities maturing in 397 days or less (with certain exceptions) and the portfolio will have a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. The Fund may invest in variable and floating rate instruments, and transact in securities on a when-issued, delayed delivery or forward commitment basis.
The Fund will invest, under normal circumstances, at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in U.S. Treasury bills, notes and other obligations of the U.S. Treasury. This policy is a non-fundamental policy of the Fund and the Fund will not change the policy without providing shareholders with at least 60 days’ prior notice of any change in the policy.
The securities purchased by the Fund are subject to the quality, diversification, and other requirements of Rule 2a‑7 under the Investment Company Act of 1940, as amended (the “1940 Act”), and other rules of the Securities and Exchange Commission. The Fund will only purchase securities that present minimal credit risk as determined by BlackRock, the Fund’s investment manager, pursuant to guidelines approved by the Trust’s Board of Trustees.
Principal Risks of Investing in the Fund
 
Risk is inherent in all investing. You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund’s sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. The following is a summary description of principal risks of investing in the Fund. The relative significance of each risk factor below may change over time and you should review each risk factor carefully.
  
 
Interest Rate Risk — Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective. 
 
 
Treasury Obligations Risk — Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. 
 
 
Credit Risk — Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. 
 
 
Income Risk — Income risk is the risk that the Fund’s yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. 
 
 
Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. 
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. 
 
12 - Treasury Trust Fund

The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time. 
 
 
Risk of Investing in the United States — Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure. 
 
 
Stable Net Asset Value Risk — The Fund may not be able to maintain a stable net asset value (“NAV”) of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity. 
 
 
Trading Risk — In selling securities prior to maturity, the Fund may realize a price higher or lower than that paid to acquire such securities, depending upon whether interest rates have decreased or increased since their acquisition. In addition, shareholders in a state that imposes an income or franchise tax should determine through consultation with their own tax advisors whether the Fund’s interest income, when distributed by the Fund, will be considered by the state to have retained exempt status, and whether the Fund’s capital gain and other income, if any, when distributed, will be subject to the state’s income or franchise tax. 
 
 
Variable and Floating Rate Instrument Risk — Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time. 
 
 
When-Issued and Delayed Delivery Securities and Forward Commitments Risk — When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. 
Performance Information
 
The information shows you how Treasury Trust Fund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. As with all such investments, past performance is not an indication of future results. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. The table includes all applicable fees. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund’s returns would have been lower. The Fund is a money market fund managed pursuant to the requirements of Rule 2a-7 under the 1940 Act. Updated information on the Fund’s performance can be obtained by visiting www.blackrock.com/cash or can be obtained by phone at (800) 441‑7450.
Treasury Trust Fund
Select Shares
ANNUAL TOTAL RETURNS
As of 12/31
 
LOGO  
 
13 - Treasury Trust Fund 

During the periods shown in the bar chart, the highest return for a quarter was 0.63% (quarter ended December 31, 2022) and the lowest return for a quarter was 0.00% (quarter ended March 31, 2022). 
For the periods ended 12/31/22 
Average Annual Total Returns
 
       1 Year    5 Years    Since Inception
(September 28, 2015)
Treasury Trust Fund—Select Shares
     0.88%    0.62%    0.43%
       7-Day Yield
As of December 31, 2022
Treasury Trust Fund—Select Shares
     3.11%
Current Yield: You may obtain the Fund’s current 7‑day yield by calling (800) 441‑7450 or by visiting the Fund’s website at www.blackrock.com/cash.
Investment Manager
 
Treasury Trust Fund’s investment manager is BlackRock Advisors, LLC (previously defined as “BlackRock”).
Purchase and Sale of Fund Shares
 
You may purchase or sell shares without paying a sales charge. You may generally purchase or redeem shares of Treasury Trust Fund each day on which the New York Stock Exchange and the Federal Reserve Bank of Philadelphia are open for business. Purchase orders and redemption orders must be transmitted through a brokerage account (an “Account”) with your Financial Intermediary. The Financial Intermediary may impose minimum investment requirements for your Account. The Fund’s officers reserve the right to vary or waive any minimum and subsequent investment requirements.
Tax Information
 
Dividends and distributions paid by Treasury Trust Fund may be subject to federal income taxes and may be taxed as ordinary income or capital gains, unless you are a tax-exempt investor or are investing through a retirement plan, in which case you may be subject to federal income tax when you withdraw or receive distributions from such tax-deferred arrangements.
Payments to Broker/Dealers and Other Financial Intermediaries
 
If you purchase shares of Treasury Trust Fund through a Financial Intermediary, the Fund and BlackRock Investments, LLC, the Fund’s distributor, or its affiliates may pay the Financial Intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the Financial Intermediary and your individual financial professional to recommend the Fund over another investment.
Ask your individual financial professional or visit your Financial Intermediary’s website for more information.
 
14 - Treasury Trust Fund

Details About the Funds
 
Included in this prospectus are sections that tell you about your shareholder rights, buying and selling shares, management information, and shareholder features of FedFund, T-Fund and Treasury Trust Fund, each a government money market fund under Rule 2a-7 under the Investment Company Act of 1940, as amended (the “1940 Act”) (each a “Fund”). Each Fund is a series of BlackRock Liquidity Funds (the “Trust”).
How Each Fund Invests
 
 
 
Each Fund will maintain a dollar-weighted average maturity of 60 days or less and a dollar-weighted average life of 120 days or less. For a discussion of dollar-weighted average maturity and dollar-weighted average life, please see the Glossary on page 33.
 
 
Pursuant to Rule 2a-7, each Fund is subject to a “general liquidity requirement” that requires that each Fund hold securities that are sufficiently liquid to meet reasonably foreseeable shareholder redemptions in light of its obligations under Section 22(e) of the 1940 Act regarding share redemptions and any commitments the Fund has made to shareholders. To comply with this general liquidity requirement, BlackRock Advisors, LLC (“BlackRock”) must consider factors that could affect the Fund’s liquidity needs, including characteristics of the Fund’s investors and their likely redemptions. Depending upon the volatility of its cash flows (particularly shareholder redemptions), this may require a Fund to maintain greater liquidity than would be required by the daily and weekly minimum liquidity requirements discussed below.
 
 
No Fund will acquire any illiquid security (i.e., securities that cannot be sold or disposed of in the ordinary course of business within seven days at approximately the value ascribed to them by the Fund) if, immediately following such purchase, more than 5% of the Fund’s total assets are invested in illiquid securities.
 
 
No Fund will acquire any security other than a daily liquid asset unless, immediately following such purchase, at least 10% of its total assets would be invested in daily liquid assets, and no Fund will acquire any security other than a weekly liquid asset unless, immediately following such purchase, at least 30% of its total assets would be invested in weekly liquid assets. For a discussion of daily liquid assets and weekly liquid assets, please see the Glossary on page 33.
 
 
Each Fund seeks to maintain a net asset value (“NAV”) of $1.00 per share.
The Board has chosen not so subject the Funds to liquidity fees or redemption gates due to declines in such Fund’s weekly liquid assets. If the Board changes this policy with respect to liquidity fees or redemption gates, such change would become effective only after shareholders are provided with advance notice of the change.
Investment Objectives
 
Fund   
Investment Objective
FedFund
T-Fund
Treasury Trust Fund
   Each Fund seeks current income as is consistent with liquidity and stability of principal.
The investment objective of each Fund may be changed by the Board without shareholder approval.
Investment Process
Each Fund invests in securities maturing within 397 days or less from the date of purchase, with certain exceptions. For example, certain government securities held by a Fund may have remaining maturities exceeding 397 days if such securities provide for adjustments in their interest rates not less frequently than every 397 days.
The securities purchased by a Fund are also subject to the quality, diversification, and other requirements of Rule 2a-7 under the 1940 Act, and other rules of the Securities and Exchange Commission (the “SEC”). Each Fund will purchase securities (or issuers of such securities) that are Eligible Securities that present minimal credit risk as determined by BlackRock pursuant to guidelines approved by the Board. For a discussion of Eligible Securities, please see the Glossary.
 
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Principal Investment Strategies
Each Fund’s principal investment strategies are described under the heading “Principal Investment Strategies of the Fund” in each Fund’s “Key Facts” section included in “Fund Overview.”
Principal Investments
The section below describes the particular types of securities in which a Fund principally invests. Each Fund may, from time to time, make other types of investments and pursue other investment strategies in support of its overall investment goal. These supplemental investment strategies are described in the SAI. The SAI also describes the Funds’ policies and procedures concerning the disclosure of portfolio holdings.
Repurchase Agreements.  FedFund and T‑Fund.  Each Fund may enter into repurchase agreements. Repurchase agreements are similar in certain respects to collateralized loans, but are structured as a purchase of securities by a Fund, subject to the seller’s agreement to repurchase the securities at a mutually agreed upon date and price. Under a repurchase agreement, the seller is required to furnish collateral at least equal in value or market price to the amount of the seller’s repurchase obligation. Collateral for T-Fund repurchase agreements may include cash, U.S. Treasury bills, notes and other obligations issued or guaranteed as to principal and interest by the U.S. Treasury. Collateral for FedFund repurchase agreements may include cash and obligations issued by the U.S. Government or its agencies or instrumentalities.
The Funds may transfer uninvested cash balances into a single joint account at the Funds’ custodian bank, the daily aggregate balance of which will be invested in one or more repurchase agreements.
U.S. Government Obligations.  FedFund and T-Fund.  Each Fund may purchase obligations issued or guaranteed by the U.S. Government or its agencies, authorities, instrumentalities and sponsored enterprises, and related custodial receipts.
U.S. Treasury Obligations.  All Funds.  Each Fund may invest in direct obligations of the U.S. Treasury. Each Fund may also invest in Treasury receipts where the principal and interest components are traded separately under the Separate Trading of Registered Interest and Principal of Securities (“STRIPS”) program.
Variable and Floating Rate Instruments.  All Funds.  Each Fund may purchase variable or floating rate notes, which are instruments that provide for adjustments in the interest rate on certain reset dates or whenever a specified interest rate index changes, respectively.
When-Issued, Delayed Delivery and Forward Commitment Transactions.  All Funds.  Each Fund may transact in securities on a when-issued, delayed delivery or forward commitment basis. Each Fund expects that commitments to purchase securities on a when-issued, delayed delivery or forward commitment basis will not exceed 25% of the value of its total assets absent unusual market conditions. No Fund intends to purchase securities on a when-issued, delayed delivery or forward commitment basis for speculative purposes but only in furtherance of its investment objective. No Fund receives income from securities purchased on a when-issued, delayed delivery or forward commitment basis prior to delivery of such securities.
Other Investments
In addition to the principal investments described above, each Fund (except as noted below) may also invest or engage in the following investments/strategies:
Borrowing.  All Funds.  During periods of unusual market conditions, each Fund is authorized to borrow money from banks or other lenders on a temporary basis to the extent permitted by the 1940 Act, the rules and regulations thereunder and any applicable exemptive relief. The Funds will borrow money when BlackRock believes that the return from securities purchased with borrowed funds will be greater than the cost of the borrowing. Such borrowings may be secured or unsecured. No Fund will purchase portfolio securities while borrowings in excess of 5% of such Fund’s total assets are outstanding.
Illiquid Investments.  All Funds.  No Fund will invest more than 5% of the value of its respective total assets in illiquid securities that it cannot sell in the ordinary course within seven days at approximately current value.
Investment Company Securities.  FedFund and T-Fund.  Each Fund may invest in securities issued by other open‑end or closed‑end investment companies, including affiliated investment companies, as permitted by the 1940 Act. A pro rata portion of
 
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the other investment companies’ expenses may be borne by the Fund’s shareholders. These investments may include, as consistent with a Fund’s investment objective and policies, certain variable rate demand securities issued by closed‑end funds, which invest primarily in portfolios of taxable or tax‑exempt securities.
Reverse Repurchase Agreements.  FedFund and T‑Fund.  Each Fund may enter into reverse repurchase agreements. A Fund is permitted to invest up to one‑third of its total assets in reverse repurchase agreements. Investments in reverse repurchase agreements and securities lending transactions (described below) will be aggregated for purposes of this investment limitation.
Securities Lending.  FedFund and T‑Fund.  Each Fund may lend its securities with a value of up to one‑third of its total assets (including the value of the collateral for the loan) to qualified brokers, dealers, banks and other financial institutions for the purpose of realizing additional net investment income through the receipt of interest on the loan. Investments in reverse repurchase agreements (described above) and securities lending transactions will be aggregated for purposes of this investment limitation.
Investment Risks
 
Risk is inherent in all investing. You could lose money by investing in a Fund. Although each Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in a Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Funds’ sponsor has no legal obligation to provide financial support to a Fund, and you should not expect that the sponsor will provide financial support to a Fund at any time.
The following is a description of certain risks of investing in the Funds. The order of the below risk factors does not indicate the significance of any particular risk factor.
Principal Risks of Investing in the Funds
Credit Risk.  All Funds.  Credit risk refers to the possibility that the issuer of a debt security (i.e., the borrower) will not be able to make payments of interest and principal when due. Changes in an issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. The degree of credit risk depends on both the financial condition of the issuer and the terms of the obligation.
Income Risk.  All Funds.  The Fund’s yield will vary as the short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates.
Interest Rate Risk.  All Funds.  Interest rate risk is the risk that the value of a debt security may fall when interest rates rise. In general, the market price of debt securities with longer maturities will go up or down more in response to changes in interest rates than the market price of shorter-term securities. Due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund. Very low or negative interest rates may magnify interest rate risk. During periods of very low or negative interest rates, the Fund may be unable to maintain positive returns or pay dividends to Fund shareholders. The Fund may be subject to a greater risk of rising interest rates due to the recent period of historically low interest rates. The Federal Reserve has recently begun to raise the federal funds rate as part of its efforts to address rising inflation. There is a risk that interest rates will continue to rise, which will likely drive down the prices of bonds and other fixed-income securities. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and may detract from the Fund’s ability to achieve its investment objective.
Market Risk and Selection Risk.  All Funds.  Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a security or other asset may decline due to changes in general market conditions, economic trends or events that are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its investments. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.
An outbreak of an infectious coronavirus (COVID-19) that was first detected in December 2019 developed into a global pandemic that has resulted in numerous disruptions in the market and has had significant economic impact leaving general concern and uncertainty. Although vaccines have been developed and approved for use by various governments, the duration of
 
17

the pandemic and its effects cannot be predicted with certainty. Because the Fund invests in short-term instruments these events have caused some instruments to have declining yields, which may impair the results of the Fund if these conditions persisted. The impact of this coronavirus, and other epidemics and pandemics that may arise in the future, could affect the economies of many nations, individual companies and the market in general ways that cannot necessarily be foreseen at the present time.
Repurchase Agreements Risk.  FedFund and T‑Fund.  If the other party to a repurchase agreement defaults on its obligation under the agreement, the Fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security and the market value of the security declines, the Fund may lose money.
Risk of Investing in the United States.  All Funds.  A decrease in imports or exports, changes in trade regulations, inflation and/or an economic recession in the United States may have a material adverse effect on the U.S. economy and the securities listed on U.S. exchanges. Proposed and adopted policy and legislative changes in the United States are changing many aspects of financial, commercial, public health, environmental, and other regulation and may have a significant effect on U.S. markets generally, as well as on the value of certain securities. Governmental agencies project that the United States will continue to maintain elevated public debt levels for the foreseeable future. Although elevated debt levels do not necessarily indicate or cause economic problems, elevated public debt service costs may constrain future economic growth.
The United States has developed increasingly strained relations with a number of foreign countries. If relations with certain countries deteriorate, it could adversely affect U.S. issuers as well as non-U.S. issuers that rely on the United States for trade. The United States has also experienced increased internal unrest and discord, as well as significant challenges in managing and containing the outbreak of COVID-19. If these trends were to continue, it may have an adverse impact on the U.S. economy and the issuers in which the Fund invests.
Stable Net Asset Value Risk.  FedFund, T-Fund and Treasury Trust Fund.  The Fund may not be able to maintain a stable NAV of $1.00 per share at all times. If the Fund fails to maintain a stable NAV (or if there is a perceived threat of such a failure), the Fund, along with other money market funds, could be subject to increased redemption activity.
Trading Risk.  Treasury Trust Fund.  In selling securities prior to maturity, the Fund may realize a price higher or lower than that paid to acquire such securities, depending upon whether interest rates have decreased or increased since their acquisition. In addition, shareholders in a state that imposes an income or franchise tax should determine through consultation with their own tax advisors whether the Fund’s interest income, when distributed by the Fund, will be considered by the state to have retained exempt status, and whether the Fund’s capital gain and other income, if any, when distributed, will be subject to the state’s income or franchise tax.
Treasury Obligations Risk.  All Funds.  Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of the Fund.
U.S. Government Obligations Risk.  FedFund and T-Fund.  Not all U.S. Government securities are backed by the full faith and credit of the United States. Obligations of certain agencies, authorities, instrumentalities and sponsored enterprises of the U.S. Government are backed by the full faith and credit of the United States (e.g., the Government National Mortgage Association); other obligations are backed by the right of the issuer to borrow from the U.S. Treasury (e.g., the Federal Home Loan Banks) and others are supported by the discretionary authority of the U.S. Government to purchase an agency’s obligations. Still others are backed only by the credit of the agency, authority, instrumentality or sponsored enterprise issuing the obligation. No assurance can be given that the U.S. Government would provide financial support to any of these entities if it is not obligated to do so by law.
Variable and Floating Rate Instrument Risk.  All Funds.  Variable and floating rate securities provide for periodic adjustment in the interest rate paid on the securities. Certain of these securities may be subject to greater illiquidity risk than other fixed income securities, meaning the absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time.
When-Issued and Delayed Delivery Securities and Forward Commitments Risk.  All Funds.  When-issued and delayed delivery securities and forward commitments involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price.
 
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Other Risks of Investing in the Funds
Each Fund (except as noted below) may also be subject to certain other non-principal risks associated with its investments and investment strategies, including:
Borrowing Risk.  All Funds.  Borrowing may exaggerate changes in the NAV of Fund shares and in the return on the Fund’s portfolio. Borrowing will cost the Fund interest expense and other fees. The costs of borrowing may reduce the Fund’s return. Borrowing may cause the Fund to liquidate positions when it may not be advantageous to do so to satisfy its obligations.
Cyber Security Risk.  All Funds.  Failures or breaches of the electronic systems of the Fund, the Fund’s adviser, distributor, and other service providers, or the issuers of securities in which the Fund invests have the ability to cause disruptions and negatively impact the Fund’s business operations, potentially resulting in financial losses to the Fund and its shareholders. While the Fund has established business continuity plans and risk management systems seeking to address system breaches or failures, there are inherent limitations in such plans and systems. Furthermore, the Fund cannot control the cyber security plans and systems of the Fund’s service providers or issuers of securities in which the Fund invests.
Expense Risk.  All Funds.  Fund expenses are subject to a variety of factors, including fluctuations in the Fund’s net assets. Accordingly, actual expenses may be greater or less than those indicated. For example, to the extent that the Fund’s net assets decrease due to market declines or redemptions, the Fund’s expenses will increase as a percentage of Fund net assets. During periods of high market volatility, these increases in the Fund’s expense ratio could be significant.
Illiquid Investments Risk.  All Funds.  The Fund’s illiquid investments may reduce the returns of the Fund because it may be difficult to sell the illiquid investments at an advantageous time or price. The Fund may be unable to pay redemption proceeds within the time period stated in this prospectus because of unusual market conditions, an unusually high volume of redemption requests, or other reasons.
Investment in Other Investment Companies Risk.  FedFund and T-Fund.  As with other investments, investments in other investment companies, including exchange-traded funds (“ETFs”), are subject to market and selection risk. In addition, if the Fund acquires shares of investment companies, including ones affiliated with the Fund, shareholders bear both their proportionate share of expenses in the Fund (including management and advisory fees) and, indirectly, the expenses of the investment companies (to the extent not offset by BlackRock through waivers). To the extent the Fund is held by an affiliated fund, the ability of the Fund itself to hold other investment companies may be limited.
Large Shareholder and Large-Scale Redemption Risk.  All Funds.  Certain shareholders, including a third-party investor, the Fund’s adviser or an affiliate of the Fund’s adviser, or another entity, may from time to time own or manage a substantial amount of Fund shares or may invest in the Fund and hold its investment for a limited period of time. There can be no assurance that any large shareholder or large group of shareholders would not redeem their investment or that the size of the Fund would be maintained. Redemptions of a large number of Fund shares by these shareholders may adversely affect the Fund’s liquidity and net assets. These redemptions may force the Fund to sell portfolio securities to meet redemption requests when it might not otherwise do so, which may negatively impact the Fund. In addition, large redemptions can result in the Fund’s current expenses being allocated over a smaller asset base, which generally could result in an increase in the Fund’s expense ratio.
Reverse Repurchase Agreements Risk.  FedFund and T‑Fund.  Reverse repurchase agreements involve the sale of securities held by the Fund with an agreement to repurchase the securities at an agreed-upon price, date and interest payment. Reverse repurchase agreements involve the risk that the other party may fail to return the securities in a timely manner or at all. The Fund could lose money if it is unable to recover the securities and the value of the collateral held by the Fund, including the value of the investments made with cash collateral, is less than the value of the securities. These events could also trigger adverse tax consequences for the Fund. In addition, reverse repurchase agreements involve the risk that the interest income earned in the investment of the proceeds will be less than the interest expense.
Securities Lending Risk.  FedFund and T‑Fund.  Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, the Fund may lose money and there may be a delay in recovering the loaned securities. The Fund could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. These events could trigger adverse tax consequences for the Fund.
 
19

Account Information
 
Valuation of Fund Investments and Price of Fund Shares
 
The price you pay when you purchase or redeem a Fund’s shares is the NAV next determined after confirmation of your order. The Funds calculate the NAV as follows:
 
NAV  =   
(Value of Assets of a Share Class)
– (Liabilities of the Share Class)
 
  
Number of Outstanding Shares
of the Share Class
Each Fund’s NAV per share is calculated by JPMorgan Chase Bank, N.A. (“JPM”) on each day on which the New York Stock Exchange (“NYSE”) and the Federal Reserve Bank of Philadelphia are open for business (a “Business Day”). Generally, trading in non-U.S. securities, U.S. Government securities, money market instruments and certain fixed-income securities is substantially completed each day at various times prior to the close of business on the NYSE. The values of such securities used in computing the NAV of a Fund’s shares are determined as of such times.
In computing the NAV, each Fund uses the amortized cost method of valuation as described in the SAI under “Additional Purchase and Redemption Information.”
The NAV of Treasury Trust Fund is determined on each Business Day as of the close of regular trading on the NYSE (normally 4:00 p.m. Eastern time).
The NAV of FedFund and T-Fund normally is determined on each Business Day as of 6:00 p.m. (Eastern time).
The Funds reserve the right to advance the time for accepting purchase or redemption orders on any day when the NYSE, bond markets (as recommended by The Securities Industry and Financial Markets Association (“SIFMA”)) or the Federal Reserve Bank of Philadelphia closes early1, trading on the NYSE is restricted, an emergency arises or as otherwise permitted by the SEC. See “Purchase of Shares” and “Redemption of Shares” for further information. In addition, the Board may, for any Business Day, decide to change the time as of which a Fund’s NAV is calculated in response to new developments such as altered trading hours, or as otherwise permitted by the SEC.
In the event the NYSE does not open for business because of an emergency or other unanticipated event, the Funds may, but are not required to, open for purchase or redemption transactions if the Federal Reserve wire payment system is open. To learn whether a Fund is open for business during an emergency or an unanticipated NYSE closing, please call (800) 441‑7450.
Purchase of Shares
 
Select Shares may be purchased through an Account you maintain with your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock and its affiliates) (each, a “Financial Intermediary”). Purchase orders for shares are accepted only on Business Days.
Your purchase order must be received in proper form by the Funds or BNY Mellon Investment Servicing (US) Inc. (“BNY Mellon”), the Funds’ transfer agent, prior to the deadlines noted below to receive that NAV. However, a Fund may also honor a purchase order if the Fund can verify that the purchase order was submitted to a Financial Intermediary that is an authorized agent of the Fund before the applicable deadline.
Your Financial Intermediary may charge you a fee and may offer additional account services than those described in this prospectus. Additionally, your Financial Intermediary may have procedures for placing orders for Select Shares that differ from those of the Funds, such as different investment minimums or earlier trading deadlines. Please contact your Financial Intermediary directly for more information and details.
 
1 
SIFMA currently recommends an early close for the bond markets on the following dates: April 7, May 26, July 3, November 24, December 22 and December 29, 2023. The NYSE will close early on July 3 and November 24, 2023.
 
20

In order to invest, a completed account application form must be submitted to, and processed by, your Financial Intermediary or the Funds’ transfer agent and an account number assigned. You may be asked to provide information to verify your identity when opening an account.
Payment for Select Shares of a Fund may be made only in federal funds or other immediately available funds. You may be charged for any costs incurred by a Fund or its service providers, including any costs incurred to recompute a Fund’s NAV, in connection with a purchase order that has been placed but for which the Fund has not received full payment by the close of the federal funds wire (normally 6:45 p.m. Eastern time) on the day the purchase order was placed. This payment deadline may be extended by one Business Day where a purchase order is processed through certain electronic platforms where same-day cash settlement is impracticable. The Funds will notify a shareholder or Financial Intermediary if its purchase order or payment was not received by an applicable deadline.
Each Fund reserves the right to suspend or discontinue the offer and sale of its shares and reject or cancel any purchase order for any reason.
Each Fund will open for business and begin accepting purchase orders at 7:30 a.m. (Eastern time) on any Business Day. The chart below outlines the deadlines for receipt of purchase orders for the Funds’ Select Shares.
 
Fund      Deadline (Eastern time)
FedFund1
     5:00 p.m.
T-Fund1
     5:00 p.m.
Treasury Trust Fund2
     2:30 p.m.
1 
Purchase orders for Shares of FedFund and T-Fund placed after 4:55 p.m. Eastern time will not be transmitted by the Funds’ internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. The Funds also reserve the right to limit the amount of such orders or to reject an order for any reason.
2 
Purchase orders for Shares of Treasury Trust Fund placed after 2:25 p.m. Eastern time will not be transmitted by the Funds’ internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. The Fund also reserves the right to limit the amount of such orders or to reject an order for any reason.
Orders received after the applicable deadline for any Fund on any Business Day (or, if the Fund closes early, at such closing time) will generally be executed on the next Business Day.
Notwithstanding the foregoing, on any day that the principal bond markets close early (as recommended by SIFMA) or the Federal Reserve Bank of Philadelphia or the NYSE closes early, a Fund may advance the time on that day by which a purchase order must be placed so that it will be effected and begin to earn dividends that day. Typically, the deadline for purchases of Treasury Trust Fund is advanced to 2:00 p.m. on days before and sometimes after holiday closings.
Contact the Funds’ office at (800) 441-7450 for specific information.
Purchases of Shares of each Fund may be effected through an Account at your Financial Intermediary through procedures and requirements established by the Financial Intermediary. Beneficial ownership of Select Shares will be recorded by the Financial Intermediary and will be reflected in Account statements. The Financial Intermediary may impose minimum investment requirements for your Account. Even if the Financial Intermediary does not impose a sales charge for purchases of Shares, depending on the terms of an Account, the Financial Intermediary may charge an Account certain fees for automatic investment and other services provided to an Account. Information concerning Account requirements, services and charges should be obtained from your Financial Intermediary, and should be read in conjunction with this prospectus. The Funds’ officers reserve the right to vary or waive any minimum and subsequent investment requirements.
Certain Accounts may be eligible for an automatic investment or redemption privilege, commonly called a “sweep,” under which amounts necessary to decrease or increase an Account balance to a predetermined dollar amount at the end of each day are invested in or redeemed from a selected Fund as of the end of the day. The frequency of investments and the minimum investment requirement will be established by your Financial Intermediary and the Funds. In addition, your Financial Intermediary may require a minimum amount of cash and/or securities to be deposited in an Account to participate in the sweep program. Each investor desiring to use this privilege should consult his/her Financial Intermediary for details.
 
21

Shares of the Funds are only registered for sale in the United States and certain of its territories. Consequently, the Funds generally do not accept investments from non-U.S. residents.
Redemption of Shares
 
Select Shares may be redeemed on a Business Day through your Financial Intermediary. If the shares are owned beneficially through an Account, they may be redeemed in accordance with instructions and limitations pertaining to such Account.
Each Fund will open for business and begin accepting redemption orders at 7:30 a.m. (Eastern time) on any Business Day. Redemption orders are accepted on Business Days in accordance with the deadlines outlined in the chart below. If redemption orders are received by BNY Mellon on a Business Day by the established deadlines, payment for redeemed Fund shares will typically be wired in federal funds on that same day.
Orders received after the applicable deadline for any Fund on any Business Day (or, if the Fund closes early, at such closing time) will generally be executed on the next Business Day.
If you purchased shares through a Financial Intermediary, that entity may have its own earlier deadlines for the receipt of the redemption order.
Where a redemption order is processed through certain electronic platforms where same-day cash settlement is impracticable, payment for redeemed shares will generally be delayed by one Business Day.
A Fund may suspend the right of redemption or postpone the date of payment under the conditions described under “Additional Purchase and Redemption Information”.
 
Fund      Deadline (Eastern time)
FedFund1
     5:00 p.m.
T-Fund1
     5:00 p.m.
Treasury Trust Fund2
     2:30 p.m.
1 
Redemption orders for Shares of FedFund and T-Fund placed after 4:55 p.m. Eastern time will not be transmitted by the Funds’ internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. Shareholders placing orders through a Financial Intermediary are responsible for making certain that their Financial Intermediary communicates the order to the Funds’ office no later than the stated deadline. The Funds reserve the right to limit the amount of such orders that will be paid on the same day.
2 
Redemption orders for Shares of Treasury Trust Fund placed after 2:25 p.m. Eastern time will not be transmitted by the Fund’s internet-based order entry program. Account holders may transmit their trades during the next time window when internet-based trading resumes. Shareholders placing orders through a Financial Intermediary are responsible for making certain that their Financial Intermediary communicates the order to the Fund’s office no later than the stated deadline. The Fund reserves the right to limit the amount of such orders that will be paid on the same day.
Notwithstanding the foregoing, on any day that the principal bond markets close early (as recommended by SIFMA) or the Federal Reserve Bank of Philadelphia or the NYSE closes early, a Fund may advance the time on that day by which a redemption order must be placed so that it will be effected that day. Typically, the deadline for redemptions of Treasury Trust Fund is advanced to 2:00 p.m. on days before and sometimes after holiday closings.
Contact the Funds’ office at (800) 441-7450 for specific information.
The Funds shall have the right to redeem Select Shares held by any Account if the value of such shares is less than $500 (other than due to market fluctuations), after 60 days’ prior written notice to the shareholder. If during the 60‑day period the shareholder increases the value of its Select Shares to $500 or more, no such redemption shall take place. If the value of a shareholder’s Select Shares falls below an average of $500 in any particular calendar month, the Account may be charged a service fee with respect to that month. Any such redemption shall be effected at the NAV next determined after the redemption order is entered.
In addition, a Fund may redeem Select Shares involuntarily under certain special circumstances described in the SAI under “Additional Purchase and Redemption Information.” A Financial Intermediary redeeming shares of a Fund on behalf of its customers is responsible for transmitting orders to such Fund in accordance with its customer agreements.
 
22

Under normal and stressed market conditions, each Fund typically expects to meet redemption requests by using cash or cash equivalents in its portfolio or by selling portfolio assets to generate additional cash.
Additional Purchase and Redemption Information
 
Upon receipt of a proper redemption request submitted in a timely manner and otherwise in accordance with the redemption procedures set forth in this prospectus, the Funds will redeem the requested shares and make a payment to you in satisfaction thereof no later than the Business Day following the redemption request.
A Fund may postpone and/or suspend redemption and payment beyond one Business Day only as follows:
 
  a.
For any period during which there is a non-routine closure of the Federal Reserve wire system or applicable Federal Reserve Banks;
 
  b.
For any period (1) during which the NYSE is closed other than customary week-end and holiday closings or (2) during which trading on the NYSE is restricted;
 
  c.
For any period during which an emergency exists as a result of which (1) disposal of securities owned by the Fund is not reasonably practicable or (2) it is not reasonably practicable for the Fund to fairly determine the NAV of shares of the Fund;
 
  d.
For any period during which the SEC has, by rule or regulation, deemed that (1) trading shall be restricted or (2) an emergency exists;
 
  e.
For any period that the SEC may by order permit for your protection;
 
  f.
For any period during which the Fund, as part of a necessary liquidation of the Fund, has properly postponed and/or suspended redemption of shares and payment in accordance with federal securities laws (as discussed below); or
If the Board, including a majority of the non-interested Trustees, determines either that (1) a Fund has invested, at the end of a business day, less than 10% of its total assets in weekly liquid assets, or (2) a Fund’s calculated NAV per share has deviated from $1.00 or such deviation is likely to occur; then the Board, subject to certain conditions, may in the case of a Fund that the Board has determined to liquidate irrevocably, suspend redemptions and payment of redemption proceeds in order to facilitate the permanent liquidation of the Fund in an orderly manner. A Fund, prior to suspending redemptions, will notify the SEC of its decision to liquidate and suspend redemptions. If this were to occur, it would likely result in a delay in your receipt of your redemption proceeds.
Market timing is an investment technique involving frequent short-term trading of mutual fund shares designed to exploit market movements or inefficiencies in the way a mutual fund prices its shares. The Board has not adopted a market timing policy for FedFund, T-Fund and Treasury Trust Fund because the Funds seek to maintain a stable NAV of $1.00 per share and generally the Funds’ shares are used by investors for short-term investment or cash management purposes. There can be no assurances, however, that the Funds may not, on occasion, serve as a temporary or short-term investment vehicle for those who seek to market time funds offered by other investment companies.
Under certain circumstances, if no activity occurs in an account within a time period specified by state law, a shareholder’s shares in the Fund may be transferred to that state.
Distribution and Shareholder Servicing Payments
 
Select Shares Distribution Plan and Shareholder Services Plan
Pursuant to a Distribution Plan (12b‑1 Plan) adopted by the Board, BlackRock Investments, LLC (the “Distributor”) will enter into agreements with Financial Intermediaries that purchase Select Shares. Each agreement will require the Financial Intermediary to provide distribution and sales support to its customers who are the beneficial owners of such shares in consideration of the payment of a fee of up to 0.35% (on an annualized basis) of the average daily NAV of the Select Shares held by the Financial Intermediary. Because such fees are paid out of the Funds’ assets on an ongoing basis, over time these fees will increase the cost of an investment and may cost more than paying other types of sales charges. The distribution and sales support and shareholder services are described more fully in the SAI under “Management of the Funds—Service Organizations.”
Pursuant to a Shareholder Services Plan adopted by the Board, the Trust will enter into agreements with Financial Intermediaries that purchase Select Shares. Each agreement will require the Financial Intermediary to provide services to its customers who are the beneficial owners of such shares in consideration of the payment of up to 0.50% (on an annualized basis) of the average daily
 
23

NAV of the Select Shares held by the Financial Intermediary, of which 0.25% is for support services that are not “services” within the meaning of the applicable rule of the Financial Industry Regulatory Authority, Inc. Such services are described more fully in the SAI under “Management of the Funds—Service Organizations.” As described in the “Management of the Funds” section of this prospectus, there is a waiver agreement in place pursuant to which the Distributor and the Financial Intermediary party to the waiver agreement have contractually agreed to waive all or a portion of the fees to which they are entitled under the Distribution Plan and/or the Shareholder Services Plan.
The Funds also offer other share classes which may have higher or lower levels of expenses depending on, among other things, the services provided to shareholders.
Other Payments by BlackRock
From time to time, BlackRock, the Funds’ distributor or their affiliates also may pay a portion of the fees for administrative, networking, recordkeeping, sub-transfer agency, sub-accounting and shareholder services at its or their own expense and out of its or their profits. BlackRock, the Funds’ distributor and their affiliates may also compensate affiliated and unaffiliated Financial Intermediaries for the sale and distribution of shares of the Funds. These payments would be in addition to the Fund payments described in this prospectus and may be a fixed dollar amount, may be based on the number of customer accounts maintained by the Financial Intermediary, may be based on a percentage of the value of shares sold to, or held by, customers of the Financial Intermediary or may be calculated on another basis. The aggregate amount of these payments by BlackRock, the Funds’ distributor and their affiliates may be substantial and, in some circumstances, may create an incentive for a Financial Intermediary, its employees or associated persons to recommend or sell shares of the Funds to you.
Please contact your Financial Intermediary for details about payments it may receive from the Funds or from BlackRock, the Funds’ distributor or their affiliates. For more information, see the SAI.
Dividends and Distributions
 
Each Fund declares dividends daily and distributes substantially all of its net investment income to shareholders monthly. Shares begin accruing dividends on the day the purchase order for the shares is effected and continue to accrue dividends through the day before such shares are redeemed. Unless they are reinvested, dividends are paid monthly generally by wire transfer.
Shareholders’ dividends are automatically reinvested in additional full and fractional shares of the same class of shares with respect to which such dividends are declared. Reinvested dividends are available for redemption on the following Business Day. Reinvested dividends receive the same tax treatment as dividends paid in cash.
Federal Taxes
 
Distributions paid by FedFund, T‑Fund and Treasury Trust Fund will generally be taxable to shareholders. Each of these Funds expects that all, or virtually all, of its distributions will consist of ordinary income that is not eligible for the reduced rates applicable to qualified dividend income. You will be subject to income tax on these distributions regardless of whether they are paid in cash or reinvested in additional shares. The one major exception to these tax principles is that distributions on shares held in an individual retirement account (“IRA”) (or other tax‑qualified plan) will not be currently taxable.
Distributions derived from taxable interest income or capital gains on portfolio securities, if any, will be subject to federal income taxes and will generally be subject to state and local income taxes. If you redeem shares of a Fund, you generally will be treated as having sold your shares and any gain on the transaction may be subject to tax.
Each Fund will be required in certain cases to withhold and remit to the United States Treasury a percentage of taxable ordinary income or capital gain dividends paid to any non‑corporate shareholder who (1) has failed to provide a correct tax identification number, (2) is subject to back‑up withholding by the IRS for failure to properly include on his or her return payments of taxable interest or dividends, or (3) has failed to certify to the Funds that he or she is not subject to back‑up withholding or that he or she is an “exempt recipient.” Backup withholding is not an additional tax. Any amount withheld generally may be allowed as a refund or a credit against a shareholder’s federal income tax liability provided the required information is timely provided to the IRS.
A 3.8% Medicare tax is imposed on the net investment income (which includes, but is not limited to, interest, dividends and net gain from investments) of U.S. individuals with income exceeding $200,000, or $250,000 if married filing jointly, and of trusts and estates. Net investment income does not include exempt-interest dividends received from a Fund.
 
24

The discussion above relates solely to U.S. federal income tax law as it applies to U.S. persons. Nonresident aliens, foreign corporations and other foreign investors in a Fund whose investment is not connected to a U.S. trade or business of the investor will generally be exempt from U.S. federal income tax on Fund distributions identified by the Fund as attributable to U.S.-source interest income and capital gains of a Fund. Tax may apply to such distributions, however, if the recipient’s investment in a Fund is connected to a trade or business of the recipient in the United States or if the recipient is present in the United States for 183 days or more in a year and certain other conditions are met.
Separately, a 30% withholding tax is currently imposed on U.S.-source dividends, interest and other income items paid to (i) certain foreign financial institutions and investment funds, and (ii) certain other foreign entities. To avoid withholding, foreign financial institutions and investment funds will generally either need to (a) collect and report to the IRS detailed information identifying their U.S. accounts and U.S. account holders, comply with due diligence procedures for identifying U.S. accounts and withhold tax on certain payments made to noncomplying foreign entities and account holders or (b) if an intergovernmental agreement is entered into and implementing legislation is adopted, comply with the agreement and legislation. Other foreign entities will generally either need to provide detailed information identifying each substantial U.S. owner or certify there are no such owners.
All foreign investors should consult their own tax advisors regarding the tax consequences in their country of residence of an investment in a Fund.
State and Local Taxes
 
Shareholders may also be subject to state and local taxes on distributions. State income taxes may not apply, however, to the portions of a Fund’s distributions, if any, that are attributable to interest on certain U.S. government securities and interest on securities of that state or localities within that state.
* * *
The Funds are generally required to report to each shareholder and to the IRS the amount of Fund distributions to that shareholder, including both taxable and exempt-interest dividends. This is not required, however, for distributions paid to certain types of shareholders that are “exempt recipients,” including foreign and domestic corporations, IRAs, tax‑exempt organizations, and the U.S. federal and state governments and their agencies and instrumentalities. As a result, some shareholders may not receive Forms 1099‑DIV or 1099‑INT with respect to all distributions received from a Fund. BNY Mellon, as transfer agent, will send each Fund’s shareholders, or their authorized representatives, an annual statement reporting the amount, if any, of dividends and distributions made during each year and their federal tax treatment.
The foregoing is only a summary of certain tax considerations under current law, which may be subject to change in the future. You should consult your tax advisor for further information regarding federal, state, local and/or foreign tax consequences relevant to your specific situation. More information about taxes is included in the SAI.
 
25

Management of the Funds
 
BlackRock
 
BlackRock, each Fund’s investment manager, manages the Fund’s investments and its business operations subject to the oversight of the Board. While BlackRock is ultimately responsible for the management of the Funds, it is able to draw upon the trading, research and expertise of its asset management affiliates for portfolio decisions and management with respect to certain portfolio securities. BlackRock is an indirect, wholly-owned subsidiary of BlackRock, Inc.
BlackRock, a registered investment adviser, was organized in 1994 to perform advisory services for investment companies and has its principal offices at 100 Bellevue Parkway, Wilmington, Delaware 19809. BlackRock and its affiliates had approximately $8.594 trillion in investment company and other portfolio assets under management as of December 31, 2022.
The Trust has entered into a management agreement (the “Management Agreement”) with BlackRock under which BlackRock provides certain investment advisory, administrative and accounting services to the Funds.
The management fee for FedFund, T‑Fund and Treasury Trust Fund is equal to Calculation A plus Calculation B as follows:
 
FedFund, T‑Fund and Treasury Trust Fund
Calculation A
  
Calculation B
.175% of the first $1 billion*
   .175% of the first $1 billion**
.150% of the next $1 billion*
   .150% of the next $1 billion**
.125% of the next $1 billion*
   .125% of the next $1 billion**
.100% of the next $1 billion*
   .100% of amounts in excess of $3 billion.**
.095% of the next $1 billion*
  
.090% of the next $1 billion*
  
.085% of the next $1 billion*
  
.080% of amounts in excess of $7 billion.*
  
*
Based on the combined average net assets of FedFund, T‑Fund and Treasury Trust Fund and another portfolio of the Trust not offered by this prospectus (BlackRock Liquid Federal Trust Fund).
**
Based on the average net assets of the Fund whose management fee is being calculated.
Under the Management Agreement, BlackRock is authorized to engage sub‑contractors to provide any or all of the services provided for under the Management Agreement. BlackRock has engaged JPM to provide certain administrative services with respect to the Trust. Any fees payable to JPM do not affect the fees payable by the Funds to BlackRock.
BlackRock has agreed to cap each Fund’s combined management fees plus miscellaneous/other expenses (excluding: (i) interest, taxes, dividends tied to short sales, brokerage commissions, and other expenditures which are capitalized in accordance with generally accepted accounting principles; (ii) the Fund’s pro rata share of the fees and expenses incurred indirectly by the Fund as a result of investing in other investment companies; (iii) other expenses attributable to, and incurred as a result of, the Fund’s investments; and (iv) extraordinary expenses (including litigation expenses) not incurred in the ordinary course of the Fund’s business, if any), of each share class of the Funds at the levels shown below and in a Fund’s fees and expenses table in the “Fund Overview” section of this prospectus. Items (i), (ii), (iii) and (iv) in the preceding sentence are referred to in this prospectus as “Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses.” To achieve these expense caps, BlackRock has agreed to waive or reimburse fees or expenses for Select Shares if these expenses exceed a certain limit as indicated in the table below.
 
Fund   
Contractual Caps1 on
Combined Management
Fees and Miscellaneous/Other
Expenses2 (excluding
certain Fund expenses)
FedFund
   0.17%
T‑Fund
   0.17%
Treasury Trust Fund
   0.17%
 
26

1
The contractual caps are in effect through June 30, 2024. The contractual agreement may be terminated upon 90 days’ notice by a majority of the non‑interested trustees of the Trust or by a vote of a majority of the outstanding voting securities of the Fund.
2 
As a percentage of average daily net assets.
Through February 29, 2024, the Distributor and the Financial Intermediary party to the waiver agreement have contractually agreed to waive all or a portion of the fees to which they are entitled under the Distribution Plan and/or the Shareholder Services Plan, as applicable, so that after such waivers, the maximum net ordinary operating expenses for Select Shares do not exceed 1.00% of average daily net assets for each Fund after giving effect to the fee waivers and/or expense reimbursements made by BlackRock pursuant to the contractual agreement described above. The agreement renews automatically for successive one year periods and may be terminated by any party upon written notice 75 days prior to the commencement of a successive one year period.
BlackRock and the Distributor have voluntarily agreed to waive a portion of their respective fees and/or reimburse operating expenses to enable the Funds to maintain minimum levels of daily net investment income. BlackRock and the Distributor may discontinue this waiver and/or reimbursement at any time without notice.
For the fiscal year ended October 31, 2022, the aggregate management fee rates, net of any applicable waivers, paid by the Funds to BlackRock, as a percentage of each Fund’s average daily net assets, were as follows:
 
Fund   
Management Fee Rates
(Net of Applicable Waivers)
FedFund
   0.12%
T-Fund
   0.13%
Treasury Trust Fund
   0.13%
The services provided by BlackRock are described further in the SAI under “Management of the Funds.”
A discussion regarding the basis for the Board’s approval of the Management Agreement is available in the Trust’s annual report to shareholders for the fiscal year ended October 31, 2022.
From time to time, a manager, analyst, or other employee of BlackRock or its affiliates may express views regarding a particular asset class, company, security, industry, or market sector. The views expressed by any such person are the views of only that individual as of the time expressed and do not necessarily represent the views of BlackRock or any other person within the BlackRock organization. Any such views are subject to change at any time based upon market or other conditions and BlackRock disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for the Funds are based on numerous factors, may not be relied on as an indication of trading intent on behalf of the Funds.
BlackRock, the Distributor and/or their affiliates may make payments for subaccounting, administrative and/or shareholder processing services that are in addition to any shareholder servicing and processing fees paid by the Funds.
Conflicts of Interest
 
The investment activities of BlackRock and its affiliates (including BlackRock, Inc. and its subsidiaries (collectively, the “Affiliates”)), and their respective directors, officers or employees, in the management of, or their interest in, their own accounts and other accounts they manage, may present conflicts of interest that could disadvantage the Funds and their shareholders.
BlackRock and its Affiliates provide investment management services to other funds and discretionary managed accounts that may follow investment programs similar to that of the Funds. BlackRock and its Affiliates are involved worldwide with a broad spectrum of financial services and asset management activities and may engage in the ordinary course of business in activities in which their interests or the interests of their clients may conflict with those of the Funds. BlackRock or one or more Affiliates act or may act as an investor, research provider, investment manager, commodity pool operator, commodity trading advisor, financier, underwriter, adviser, trader, lender, index provider, agent and/or principal, and have other direct and indirect interests in securities, currencies, commodities, derivatives and other instruments in which the Funds may directly or indirectly invest. The Funds may invest in securities of, or engage in other transactions with, companies with which an Affiliate has significant debt or equity investments or other interests. The Funds may also invest in issuances (such as structured notes) by entities for which an Affiliate provides and is compensated for cash management services relating to the proceeds from the sale of such issuances. The Funds also may invest in securities of, or engage in other transactions with, companies for which an Affiliate provides or may in the future provide research coverage. An Affiliate may have business relationships with, and purchase, or distribute or sell services or products from or to, distributors, consultants or others who recommend the Funds or who engage in transactions with or for the Funds, and may receive compensation for such services.
 
27

BlackRock or one or more Affiliates may engage in proprietary trading and advise accounts and funds that have investment objectives similar to those of the Funds and/or that engage in and compete for transactions in the same types of securities, currencies and other instruments as the Funds. This may include transactions in securities issued by other open-end and closed-end investment companies (which may include investment companies that are affiliated with the Funds and BlackRock, to the extent permitted under the 1940 Act). The trading activities of BlackRock and these Affiliates are carried out without reference to positions held directly or indirectly by the Funds and may result in BlackRock or an Affiliate having positions in certain securities that are senior or junior to, or have interests different from or adverse to, the securities that are owned by the Funds.
Neither BlackRock nor any Affiliate is under any obligation to share any investment opportunity, idea or strategy with the Funds. As a result, an Affiliate may compete with the Funds for appropriate investment opportunities. The results of a Fund’s investment activities, therefore, may differ from those of an Affiliate and of other accounts managed by BlackRock or an Affiliate, and it is possible that a Fund could sustain losses during periods in which one or more Affiliates and other accounts achieve profits on their trading for proprietary or other accounts. The opposite result is also possible.
In addition, the Funds may, from time to time, enter into transactions in which BlackRock or an Affiliate or their directors, officers or employees or other clients have an adverse interest. Furthermore, transactions undertaken by clients advised or managed by BlackRock or its Affiliates may adversely impact the Funds. Transactions by one or more clients or BlackRock or its Affiliates or their directors, officers or employees, may have the effect of diluting or otherwise disadvantaging the values, prices or investment strategies of the Funds. The Funds’ activities may be limited because of regulatory restrictions applicable to BlackRock or one or more Affiliates and/or their internal policies designed to comply with such restrictions.
Under a securities lending program approved by the Board, the Trust, on behalf of each Fund, has retained BlackRock Investment Management, LLC, an Affiliate of BlackRock, to serve as the securities lending agent for the Funds to the extent that the Funds participate in the securities lending program. For these services, the securities lending agent will receive a fee from the Funds, including a fee based on the returns earned on the Funds’ investment of the cash received as collateral for the loaned securities. In addition, one or more Affiliates may be among the entities to which the Funds may lend their portfolio securities under the securities lending program.
The activities of BlackRock and its Affiliates and their respective directors, officers or employees, may give rise to other conflicts of interest that could disadvantage the Funds and their shareholders. BlackRock has adopted policies and procedures designed to address these potential conflicts of interest. See the SAI for further information.
Master/Feeder Structure
 
None of the Funds are currently organized in a master feeder structure but may in the future determine to convert to or reorganize as a feeder fund. A fund that invests all of its assets in a corresponding “master” fund may be known as a feeder fund. Investors in a feeder fund will acquire an indirect interest in the corresponding master fund. A master fund may accept investments from
multiple feeder funds, and all the feeder funds of a given master fund bear the master fund’s expenses in proportion to their assets. This structure may enable the feeder funds to reduce costs through economies of scale. A larger investment portfolio may also reduce certain transaction costs to the extent that contributions to and redemptions from a master fund from different feeders may offset each other and produce a lower net cash flow. However, each feeder fund can set its own transaction minimums, fund-specific expenses, and other conditions. This means that one feeder fund could offer access to the same master fund on more attractive terms, or could experience better performance, than another feeder fund. In addition, large purchases or redemptions by one feeder fund could negatively affect the performance of other feeder funds that invest in the same master fund. Whenever a master fund holds a vote of its feeder funds, a fund that is a feeder fund investing in that master fund will pass the vote through to its own shareholders. Smaller feeder funds may be harmed by the actions of larger feeder funds. For example, a larger feeder fund could have more voting power than a smaller feeder fund over the operations of its master fund.
 
28

Financial Highlights
 
Financial Performance of the Funds
 
The Financial Highlights tables are intended to help you understand the financial performance of the Select Shares of each Fund for the periods shown. Certain information reflects financial results for a single Fund share. The total returns in the table represent the rate that an investor would have earned or lost on an investment in the indicated Fund (assuming reinvestment of all dividends and/or distributions). The information has been audited by Deloitte & Touche LLP, whose report, along with each Fund’s financial statements, is included in the Trust’s Annual Report, which is available upon request.
FedFund
The table below sets forth selected financial data for a Select Share of FedFund outstanding throughout each period presented.
 
     Select  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0042       0.0002       0.0021       0.0133       0.0066  
Net realized and unrealized gain
     0.0005 (a)       0.0001       0.0004       0.0002       0.0004  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0047       0.0003       0.0025       0.0135       0.0070  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(b)
            
From net investment income
     (0.0047     (0.0002     (0.0024     (0.0135     (0.0070
From net realized gain
     (0.0000 )(c)      (0.0001     (0.0001            
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0047     (0.0003     (0.0025     (0.0135     (0.0070
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(d)
            
Based on net asset value
     0.47     0.03     0.26     1.36     0.71
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     1.04     1.04     1.04     1.04     1.04
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.50     0.08     0.54     1.00     1.00
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.42     0.02     0.22     1.33     0.66
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 657,779     $ 727,352     $ 301,826     $ 256,241     $ 195,297  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
The amounts reported for a share outstanding may not accord with the change in aggregate gains and losses in securities for the fiscal period due to the timing of capital share transactions in relation to the fluctuating market values of the Fund’s underlying securities.
(b) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(c) 
Amount is greater than $(0.00005) per share.
(d) 
Where applicable, assumes the reinvestment of distributions.
 
29

T‑Fund
The table below sets forth selected financial data for a Select Share of T-Fund outstanding throughout each period presented.
 
     Select  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0031       0.0001       0.0011       0.0133       0.0051  
Net realized gain
     0.0016 (a)      0.0001       0.0014       0.0000 (b)      0.0019  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0047       0.0002       0.0025       0.0133       0.0070  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(c)
            
From net investment income
     (0.0047     (0.0001     (0.0024     (0.0133     (0.0070
From net realized gain
     (0.0000 )(d)      (0.0001     (0.0001     (0.0000 )(d)      (0.0000 )(d) 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0047     (0.0002     (0.0025     (0.0133     (0.0070
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(e)
            
Based on net asset value
     0.47     0.01     0.24 %(f)       1.34     0.70
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     1.04     1.04     1.04     1.04     1.04
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.52     0.07     0.41     1.00     1.00
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.31     0.01     0.11     1.37     0.51
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 21,300     $ 37,798     $ 30,444     $ 14,769     $ 19,710  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
The amounts reported for a share outstanding may not accord with the change in aggregate gains and losses in securities for the fiscal period due to the timing of capital share transactions in relation to the fluctuating market values of the Fund’s underlying securities.
(b) 
Amount is less than $0.00005 per share.
(c) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(d) 
Amount is greater than $(0.00005) per share.
(e) 
Where applicable, assumes the reinvestment of distributions.
(f) 
Includes payment from an affiliate, which had no impact on the Fund’s total return.
 
30

Treasury Trust Fund
The table sets forth selected financial data for a Select Share of Treasury Trust Fund outstanding throughout each period presented.
 
     Select  
     Year Ended October 31,  
(For a share outstanding throughout each period)    2022     2021     2020     2019     2018  
Net asset value, beginning of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.0032       0.0001       0.0016       0.0129       0.0067  
Net realized gain
     0.0010       0.0001       0.0008       0.0001       0.0001  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net increase from investment operations
     0.0042       0.0002       0.0024       0.0130       0.0068  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Distributions(a)
            
From net investment income
     (0.0042     (0.0001     (0.0023     (0.0130     (0.0068
From net realized gain
     (0.0000 )(b)      (0.0001     (0.0001           (0.0000 )(b) 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total distributions
     (0.0042     (0.0002     (0.0024     (0.0130     (0.0068
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net asset value, end of year
   $ 1.00     $ 1.00     $ 1.00     $ 1.00     $ 1.00  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Total Return(c)
            
Based on net asset value
     0.42     0.01     0.24     1.30     0.68
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Ratios to Average Net Assets
            
Total expenses
     1.04     1.04     1.04     1.05     1.05
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses after fees waived and/or reimbursed
     0.49     0.06     0.45     1.00     1.00
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income
     0.32     0.01     0.16     1.29     0.67
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
   
Supplemental Data
            
Net assets, end of year (000)
   $ 169,696     $ 660,676     $ 103,647     $ 38,265     $ 39,675  
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
  
 
 
   
 
 
   
 
 
   
 
 
   
 
 
 
(a) 
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(b) 
Amount is greater than $(0.00005) per share.
(c) 
Where applicable, assumes the reinvestment of distributions.
 
31

General Information
 
Certain Fund Policies
 
Anti-Money Laundering Requirements
The Funds are subject to the USA PATRIOT Act (the “Patriot Act”). The Patriot Act is intended to prevent the use of the U.S. financial system in furtherance of money laundering, terrorism or other illicit activities. Pursuant to requirements under the Patriot Act, a Fund is required to obtain sufficient information from shareholders to enable it to form a reasonable belief that it knows the true identity of its shareholders. This information will be used to verify the identity of investors or, in some cases, the status of Financial Intermediaries. Such information may be verified using third-party sources. This information will be used only for compliance with the requirements of the Patriot Act or other applicable laws, regulations and rules in connection with money laundering, terrorism or economic sanctions.
The Funds reserve the right to reject purchase orders from persons who have not submitted information sufficient to allow a Fund to verify their identity. Each Fund also reserves the right to redeem any amounts in a Fund from persons whose identity it is unable to verify on a timely basis. It is the Funds’ policy to cooperate fully with appropriate regulators in any investigations conducted with respect to potential money laundering, terrorism or other illicit activities.
BlackRock Privacy Principles
BlackRock is committed to maintaining the privacy of its current and former fund investors and individual clients (collectively, “Clients”) and to safeguarding their non-public personal information. The following information is provided to help you understand what personal information BlackRock collects, how we protect that information and why in certain cases we share such information with select parties.
If you are located in a jurisdiction where specific laws, rules or regulations require BlackRock to provide you with additional or different privacy-related rights beyond what is set forth below, then BlackRock will comply with those specific laws, rules or regulations.
BlackRock obtains or verifies personal non-public information from and about you from different sources, including the following: (i) information we receive from you or, if applicable, your Financial Intermediary, on applications, forms or other documents; (ii) information about your transactions with us, our affiliates, or others; (iii) information we receive from a consumer reporting agency; and (iv) from visits to our websites.
BlackRock does not sell or disclose to non-affiliated third parties any non‑public personal information about its Clients, except as permitted by law or as is necessary to respond to regulatory requests or to service Client accounts. These non-affiliated third parties are required to protect the confidentiality and security of this information and to use it only for its intended purpose.
We may share information with our affiliates to service your account or to provide you with information about other BlackRock products or services that may be of interest to you. In addition, BlackRock restricts access to non-public personal information about its Clients to those BlackRock employees with a legitimate business need for the information. BlackRock maintains physical, electronic and procedural safeguards that are designed to protect the non-public personal information of its Clients, including procedures relating to the proper storage and disposal of such information.
 
32

Glossary
 
Glossary of Investment Terms
 
This glossary contains an explanation of some of the common terms used in this prospectus. For additional information about the Funds, please see the SAI.
Acquired Fund Fees and Expenses — the Fund’s pro rata share of the fees and expenses incurred indirectly by the Fund as a result of investing in other investment companies.
Annual Fund Operating Expenses — expenses that cover the costs of operating a Fund.
Daily Liquid Assets — include (i) cash; (ii) direct obligations of the U.S. Government; (iii) securities that will mature, as determined without reference to the maturity shortening provisions of Rule 2a-7 regarding interest rate readjustments, or are subject to a demand feature that is exercisable and payable within one business day; and (iv) amounts receivable and due unconditionally within one business day on pending sales of portfolio securities.
Distribution Fees — fees used to support a Fund’s marketing and distribution efforts, such as compensating financial professionals and other Financial Intermediaries, advertising and promotion.
Dollar-Weighted Average Life — the dollar-weighted average maturity of a Fund’s portfolio calculated without reference to the exceptions used for variable or floating rate securities regarding the use of the interest rate reset dates in lieu of the security’s actual maturity date. “Dollar-weighted” means the larger the dollar value of a debt security in the Fund, the more weight it gets in calculating this average.
Dollar-Weighted Average Maturity — the average maturity of a Fund is the average amount of time until the organizations that issued the debt securities in the Fund’s portfolio must pay off the principal amount of the debt. “Dollar-weighted” means the larger the dollar value of a debt security in the Fund, the more weight it gets in calculating this average. To calculate the dollar-weighted average maturity, the Fund may treat a variable or floating rate security as having a maturity equal to the time remaining to the security’s next interest rate reset date rather than the security’s actual maturity.
Eligible Securities — Applicable Eligible Securities include:
 
   
securities with a remaining maturity of 397 calendar days or less (with certain exceptions) that BlackRock determines present minimal credit risks to the fund after considering certain factors;
 
   
securities issued by other registered investment companies that are money market funds; or
 
   
securities issued or guaranteed as to principal or interest by the U.S. Government or any of its agencies or instrumentalities.
Management Fee — a fee paid to BlackRock for managing a Fund.
Other Expenses — include accounting, transfer agency, custody, professional and registration fees.
Shareholder Servicing Fees — fees used to compensate securities dealers and other Financial Intermediaries for certain shareholder servicing activities.
Weekly Liquid Assets — include (i) cash; (ii) direct obligations of the U.S. Government; (iii) U.S. Government securities issued by a person controlled or supervised by and acting as an instrumentality of the U.S. Government pursuant to authority granted by the U.S. Congress, that are issued at a discount to the principal amount to be repaid at maturity without provision for the payment of interest and have a remaining maturity of 60 days or less; (iv) securities that will mature, as determined without reference to the maturity shortening provisions of Rule 2a-7 regarding interest rate readjustments, or are subject to a demand feature that is exercisable and payable within five business days; and (v) amounts receivable and due unconditionally within five business days on pending sales of portfolio securities.
 
33

For More Information
 
Funds and Service Providers
 
 
FUNDS
BlackRock Liquidity Funds
FedFund
T‑Fund
Treasury Trust Fund
100 Bellevue Parkway
Wilmington, Delaware 19809
(800) 441‑7450
MANAGER AND ADMINISTRATOR
BlackRock Advisors, LLC
100 Bellevue Parkway
Wilmington, Delaware 19809
TRANSFER AGENT
BNY Mellon Investment Servicing (US) Inc.
301 Bellevue Parkway
Wilmington, Delaware 19809
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
Deloitte & Touche LLP
200 Berkeley Street
Boston, Massachusetts 02116
ACCOUNTING SERVICES PROVIDER
JPMorgan Chase Bank, N.A.
383 Madison Avenue, Floor 11
New York, NY 10179
DISTRIBUTOR
BlackRock Investments, LLC
40 East 52nd Street
New York, New York 10022
CUSTODIANS
JPMorgan Chase Bank, N.A.
383 Madison Avenue, Floor 11
New York, NY 10179
The Bank of New York Mellon
240 Greenwich Street
New York, New York 10286
COUNSEL
Sidley Austin LLP
787 Seventh Avenue
New York, New York 10019-6018
 
34

How to Contact BlackRock Liquidity Funds
 
For purchase and redemption orders, please call your investment professional.
Written correspondence may be sent to your investment professional.
 
Select Shares    Fund Code
FedFund
   0090
T‑Fund
   0038
Treasury Trust Fund
   0015
For other information call: (800) 441-7450 or visit our website at www.blackrock.com/cash.

Additional Information
 
 
The Statement of Additional Information (“SAI”) includes additional information about the Funds’ investment policies, organization and management. The SAI, as amended and/or supplemented from time to time, is incorporated by reference into this prospectus. The Annual and Semi-Annual Reports provide additional information about each Fund’s investments, performance and portfolio holdings.
Investors can get free copies of the above named documents, and make shareholder inquiries, by calling their Financial Intermediary. The above named documents and other information are available on the Funds’ website at www.blackrock.com/prospectus/cash.
Information about the Funds (including the SAI) is available on the EDGAR Database on the SEC’s website at http://www.sec.gov; copies of this information may be obtained, after paying a duplicating fee, by electronic request at the following e‑mail address: [email protected].
BlackRock Liquidity Funds 1940 Act File No. is 811‑2354.
 
LOGO    PRO-LIQ-SS7-0223