X0201 42003-10-15 0001060021 BLACKROCK INC /NY BLK 0001210400 CONNOLLY ROBERT C/O BLACKROCK FINANCIAL MANAGEMENT, INC. 40 EAST 52ND STREET NEW YORK NY 10022 0100General CounselShares of Class A Common Stock, par value $0.01 per share.2003-10-154C06364A32997DClass B Common Stock, par value $0.01 per share2003-10-154C06364D2003-09-15Class A Common Stock63649488.0775DThe reporting person converted 6,364 shares of Class B Common Stock (See Table I) into 6,364 shares of Class A Common Stock on 10/15/03.One share of Class B Common Stock is convertible into one share of Class A Common Stock of BlackRock, Inc.Includes 361 shares of Class A Common Stock acquired under the BlackRock, Inc. Employee Stock Purchase Plan (the "ESPP") on January 31, 2003 and 335 shares of Class A Common Stock acquired under th ESPP on July 31, 2003. Also includes 289 shares of Class A Common Stock acquired by the reporting person through August 31, 2003 under the PNC Financial Services Group, Inc. Incentive Savings Plan (the "ISP"). The information on this report with respect to the ISP is based on a plan Statement dated as of August 31, 2003.No expiration date.Salvatore Rappa2003-10-16