X0201 4 2004-01-29 0001060021 BLACKROCK INC /NY BLK 0001059227 SCHLOSSTEIN RALPH C/O BLACKROCK FINANCIAL MANAGEMENT, INC. 40 EAST 52ND STREET NEW YORK NY 10022 1 1 0 0 President Class B Common Stock (par value $0.01 per share) 2004-01-29 4 D 0 100000 58.54 D 2002-12-31 Class A Common Stock 100000 698898.83 D One share of Class B Common Stock is convertible into one share of Class A Common Stock. Represents the sale of shares back to BlackRock, Inc. pursuant to a management buy-back program. The shares of Class A Common Stock may be converted at any time into shares of BlackRock Class A Common Stock. The sale price was equal to the average closing price of BlackRock common stock for the five trading days ending on January 28, 2004. The reporting person has direct ownership of 423,898.83 shares of Class B Common Stock and indirect ownership of 275,000 shares of Class B Common Stock through the Ralph L. Schlosstein 1998 Long-Term Trust U/A/D 2/2/98. Salvatore Rappa 2004-01-29