Summary Prospectus by Investment Company - Form 497K

FedFund

		SEPTEMBER 30, 2022

Summary Prospectus

BlackRock Liquidity Funds | Tigress Shares

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FedFund

Tigress Shares: TIGXX

Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. You can find the Fund's prospectus (including amendments and supplements), reports to shareholders and other information about the Fund, including the Fund's statement of additional information, online at http://www.blackrock.com/prospectus/cash. You can also get this information at no cost by calling (800) 441-7450 or by sending an e-mail request to [email protected], or from your financial professional. The Fund's prospectus and statement of additional information, both dated September 30, 2022, as amended and supplemented from time to time, are incorporated by reference into (legally made a part of) this Summary Prospectus.

This Summary 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 Summary Prospectus. Any representation to the contrary is a criminal offense.

Not FDIC Insured • May Lose Value • No Bank Guarantee

Summary Prospectus

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 Tigress 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)

		Tigress Shares
Management Fee		0.18%
Distribution (12b-1) Fees		None
Miscellaneous/Other Expenses1		0.01%
Total Annual Fund Operating Expenses		0.19%
Fee Waivers and/or Expense Reimbursements2		(0.02)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements2		0.17%

1	Miscellaneous/Other Expenses are based on estimated amounts.

2

As described in the "Management of the Fund" section of the Fund's prospectus beginning on page 24, 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.

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
Tigress Shares		$17		$59		$105		$241

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

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obligations or cash. The yield of the Fund is not directly tied to the federal funds rate. 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 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 order of the below risk factors does not indicate the significance of any particular risk factor.

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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.

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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.

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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. Changing interest rates, including rates that fall below zero, 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.

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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.

A recent outbreak of an infectious coronavirus has 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. 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.

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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.

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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.

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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.

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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.

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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.

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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.

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Performance Information

Tigress Shares of FedFund do not have a full calendar year of performance history as of the date of this prospectus. As a result, the chart, the table and the seven-day yield shown below give you a picture of the performance for Institutional Shares of the Fund, which are not offered in this prospectus. The performance of the Fund's Tigress Shares would be substantially similar to Institutional Shares because Tigress Shares and Institutional Shares are invested in the same portfolio of securities and performance would only differ to the extent that Tigress Shares and Institutional Shares have different expenses. The actual returns of Tigress Shares would have been approximately the same as those of Institutional Shares because Tigress Shares have the same expenses as Institutional Shares.

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. 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

Institutional Shares

ANNUAL TOTAL RETURNS

As of 12/31

During the ten-year period shown in the bar chart, the highest return for a quarter was 0.57% (quarter ended June 30, 2019) and the lowest return for a quarter was 0.00% (quarter ended September 30, 2015). The year-to-date return as of June 30, 2022 was 0.18%.

For the periods ended 12/31/21

Average Annual Total Returns

		1 Year		5 Years		10 Years
FedFund-Institutional Shares		0.03%		1.00%		0.53%
		7-Day Yield As of December 31, 2021
FedFund-Institutional Shares		0.03%

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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

Tigress Shares are only available for purchase by clients of Tigress Financial Partners LLC and its affiliates.

To open an account with the Fund, contact the Tigress Financial Partners LLC by telephone (646-780-8902) or by e-mail at [email protected].

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. To purchase or sell shares of the Fund, purchase orders and redemption orders must be transmitted to the Fund's office in Wilmington, Delaware by telephone (800-441-7450; in Delaware 302-797-2350), through the Fund's internet-based order entry program, or by such other electronic means as the Fund agrees to in its sole discretion. The initial and subsequent investment minimums generally are as follows, although the Fund's officers may reduce or waive the minimums in some cases:

		Tigress Shares
Minimum Initial Investment		$3 million for institutions.
Minimum Additional Investment		No subsequent minimum.

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 broker-dealer or other Financial Intermediary, such as Tigress Financial Partners LLC, 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 broker-dealer or other 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.

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INVESTMENT COMPANY ACT FILE # 811-2354

SPRO-FED-TS-0922

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