X0202 3 2006-11-30 1 0001380024 SentiSearch, Inc. SSRC 0000942825 PAGANO JOSEPH K PO BOX 7758 ASPEN CO 81612 1 1 1 0 CEO Secretary, Treasurer As of November 30, 2006, in connection with the consummation of the merger of Sentigen Holding Corp. and Invitrogen Corporation, Mr. Pagano ceased to be a Director and 10% Owner of Sentigen Holding Corp. Also in connection with the merger, as of such date, (x) all outstanding shares of Sentigen Holding Corp. common stock held by Mr. Pagano have been converted into the right to receive $3.37 per share and (y) all outstanding stock options held by Mr. Pagano have been cancelled. Joseph K Pagano 2006-11-30