You should consider the investment objectives, risks and expenses of the Funds carefully before investing. The Funds’ prospectuses and, if available summary prospectuses, contain this and other information about the Funds and are available by calling our Client Service Center at 800-441-7450 or by visiting www.blackrock.com/cash. Please read the prospectus carefully before investing.

PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS.

Disclosures related to institutional prime and institutional municipal money market funds: You could lose money by investing in the Fund. Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors. 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.

Disclosures related to retail money market funds: 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. The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors. 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.

Disclosures related to government money market funds: 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 Funds are actively managed, and their portfolio characteristics are subject to changes. 

Neither BlackRock nor its affiliates provide tax advice. Please note that (i) any discussion of U.S. tax matters contained in this communication cannot be used by you for the purpose of avoiding tax penalties; (ii) this communication was written to support the promotion or marketing of the matters addressed herein; and (iii) you should seek advice based on your particular circumstances from an independent tax advisor. 

©2021 BlackRock, Inc. All rights reserved. BLACKROCK, is a registered trademark of BlackRock, Inc., or its subsidiaries in the United States and elsewhere. All other marks are the property of their respective owners. 

TLS1018U-522218-1910250