X0202 4 2004-08-30 0 0000064978 MERCK & CO INC (MRK) 0001181176 GILMARTIN RAYMOND V ONE MERCK DRIVE P.O. BOX 100 WHITEHOUSE STATION NJ 08889-0100 1 1 0 0 COB, President, CEO Phantom Stock 2004-08-30 4 A 0 1168.4843 44.93 A Common Stock 1168.4843 117122.891 D 1-for-1 The Merck Deferral Program includes the right of redesignation to other investment measures within the Program. Distributions of phantom stock are made in shares of Merck Common Stock, with cash payable for partial shares, in accordance with a distribution schedule elected by the reporting person. This distribution is subject to conditions and limitations of the Merck Deferral Program. Holdings include shares acquired in dividend reinvestment transactions. Nancy V. Van Allen as Attorney-in-Fact for Raymond V. Gilmartin 2004-08-31