X0306 4 2013-01-31 0001364742 BlackRock Inc. BLK 0001059246 KAPITO ROBERT BLACKROCK INC. 55 EAST 52ND STREET NEW YORK NY 10055 1 1 President Shares Of Common Stock (par Value $0.01 Per Share) 2013-01-31 4 F 0 16461 237.40 D 143256.6 D Shares Of Common Stock (par Value $0.01 Per Share) 502038 I By Grantor Retained Annuity Trusts Represents the withholding by BlackRock of Common Stock to satisfy tax obligation on the vesting of the reporting person's Restricted Stock Units granted under the Amended and Restated BlackRock, Inc. 1999 Stock Award and Incentive Plan. Includes (i) 11,743 shares of Restricted Stock vesting on 1/31/14, (ii) 14,969 shares of Restricted Stock vesting on 1/31/14, (iii) 19,142 Restricted Stock Units vesting in installments on 1/31/14 and 1/31/15, (iv) 23,943 Restricted Stock Units vesting in installments on 1/31/14, 1/31/15 and 1/31/16, (v) 26,213 Restricted Stock Units awarded on 1/20/12 that will vest in whole or in part only on the satisfaction of one or more previously-disclosed Common Stock price targets, but which may not vest before 1/31/16 and will expire on 1/31/18 to the extent not then vested and (vi) 29,583 Restricted Stock Units awarded on 1/18/13 that will vest in whole or in part only on the satisfaction of one or more previously-disclosed Common Stock price targets, but which may not vest before 1/31/17 and will expire on 1/31/19 to the extent not then vested. Each Restricted Stock Unit is payable solely by delivery of an equal number of shares of Common Stock. /s/ Daniel R. Waltcher as Attorney-in-Fact for Robert Kapito 2013-02-01