X0306 4 2017-11-29 0001364742 BlackRock Inc. BLK 0001059240 Kushel J. Richard BLACKROCK, INC. 55 EAST 52ND STREET NEW YORK NY 10055 1 Senior Managing Director Shares Of Common Stock (par Value $0.01 Per Share) 2017-11-29 5 G 0 E 1000 0 D 126233 D Shares Of Common Stock (par Value $0.01 Per Share) 1000 I By Family Trust Shares Of Common Stock (par Value $0.01 Per Share) 1000 I By Family Trust Shares Of Common Stock (par Value $0.01 Per Share) 45000 I By The Kushel Family 2011 Dynasty Trust Includes Common Stock, Restricted Stock that will vest over a period of 1 to 3 years and Restricted Stock Units that will vest in whole or in part only on the satisfaction of one or more previously-disclosed Common Stock price targets. Restricted Stock and Restricted Stock Units are payable solely by delivery of an equal number of shares of Common Stock. /s/ Daniel R. Waltcher as Attorney-in-Fact for J. Richard Kushel 2017-12-01