$ImmunoGen(IMGN)$ 8-K - Current report Filed: 2017-06-16 AccNo: 0001104659-17-039742 Size: 230 KBItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain OfficersItem 5.07: Submission of Matters to a Vot 网页链接