ENZON, INC. 4,000,000 Shares Common Stock, $0.01 Par Value PLACEMENT AGENT AGREEMENT June 25, 1998 SBC Warburg Dillon Read Inc. 535 Madison Avenue New York, New York 10022 Ladies and Gentlemen: The undersigned, Enzon, Inc., a Delaware corporation (the...Enzon Inc • September 28th, 1998 • Biological products, (no disgnostic substances) • New York
