YM BIOSCIENCES INC. And CIBC MELLON TRUST COMPANY As Rights Agent SHAREHOLDER RIGHTS PLAN AGREEMENTShareholder Rights Plan Agreement • December 11th, 2007 • Ym Biosciences Inc • Pharmaceutical preparations • Ontario
Contract Type FiledDecember 11th, 2007 Company Industry JurisdictionTHIS AGREEMENT dated as of the 22nd day of October, 2007 between YM BioSciences Inc. (the “Corporation”), a corporation continued under the Companies Act (Nova Scotia), and CIBC Mellon Trust Company, a trust company incorporated under the laws of Canada, as Rights Agent (the “Rights Agent”), which term shall include any successor Rights Agent hereunder.