CAMBRIDGE, Mass.--(BUSINESS WIRE)--ImmunoGen, Inc. (Nasdaq: IMGN) today announced that Pauline Jen Ryan has resigned from the Company to pursue other interests. Ms. Ryan was most recently Senior Vice President, Corporate Development and Operations at ImmunoGen. “We are deeply grateful to Pauline for her distinguished service to the Company over the past eight years,” stated Mitchel Sayare, Chairman and CEO. “Pauline’s contributions helped provide us with a solid framework for growth as we go forward, and we wish her the very best in her future endeavors.”