EXHIBIT 10.34 CONVERTIBLE PREFERRED STOCK PURCHASE AGREEMENT (this "AGREEMENT"), dated as of October 16, 1996, between Southbrook International Investments, Ltd., a corporation organized and existing under the laws of the British Virgin Islands (the...Convertible Preferred Stock Purchase Agreement • November 8th, 1996 • Immunogen Inc • Pharmaceutical preparations • New York
EXHIBIT 10.35 REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this "AGREEMENT") is made and entered into as of October 16, 1996, by and among ImmunoGen, Inc., a Massachusetts corporation (the "COMPANY"), and Southbrook International...Registration Rights Agreement • November 8th, 1996 • Immunogen Inc • Pharmaceutical preparations • New York
