X0306 4 2021-10-25 0001364742 BlackRock Inc. BLK 0001059245 FINK LAURENCE BLACKROCK, INC. 55 EAST 52ND STREET NEW YORK NY 10055 1 1 Chairman and CEO Shares Of Common Stock (par Value $0.01 Per Share) 2021-10-25 4 S 0 15977 925.0521 D 622794 D Shares Of Common Stock (par Value $0.01 Per Share) 2021-10-25 4 S 0 2866 926.5447 D 619928 D Shares Of Common Stock (par Value $0.01 Per Share) 2021-10-25 4 S 0 2304 927.5909 D 617624 D Shares Of Common Stock (par Value $0.01 Per Share) 2021-10-25 4 S 0 1000 928.553 D 616624 D Shares Of Common Stock (par Value $0.01 Per Share) 2021-10-25 4 S 0 100 929.18 D 616524 D Shares Of Common Stock (par Value $0.01 Per Share) 2021-10-25 5 G 0 E 5435 0 D 611089 D Shares Of Common Stock (par Value $0.01 Per Share) 2021-10-26 4 S 0 2500 937.4016 D 608589 D Shares Of Common Stock (par Value $0.01 Per Share) 2021-10-26 4 S 0 2500 935.305 D 606089 D This transaction was executed in multiple trades at prices ranging from $925.0 to $925.98. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. Includes Common Stock as well as Restricted Stock Units that vest over a period of 1 to 3 years. Each Restricted Stock Unit is payable solely by delivery of an equal number of shares of Common Stock. This transaction was executed in multiple trades at prices ranging from $926.07 to $927.03. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. This transaction was executed in multiple trades at prices ranging from $927.085 to $927.94. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. This transaction was executed in multiple trades at prices ranging from $928.10 to $928.96. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. This transaction was executed in multiple trades at prices ranging from $937.40 to $937.575. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. This transaction was executed in multiple trades at prices ranging from $935.30 to $935.64. The price reported represents the weighted average sale price of these trades. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the shares sold at each separate price. /s/ R. Andrew Dickson III as Attorney-in-Fact for Laurence Fink 2021-10-27