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Form PREM14A - Preliminary proxy statements relating to merger or acquisition:
SEC Accession No. 0001104659-23-128277
Filing Date
2023-12-21
Accepted
2023-12-21 16:52:21
Documents
8
Period of Report
2024-01-31

Document Format Files

Seq Description Document Type Size
1 PREM14A tm2332464-1_prem14a.htm PREM14A 2145295
2 EX-FILING FEES tm2332464d2_ex-filingfees.htm EX-FILING FEES 18443
3 GRAPHIC lg_goldmansach-bw.jpg GRAPHIC 5707
4 GRAPHIC lg_lazard-bw.jpg GRAPHIC 5530
5 GRAPHIC px_23immunogenproxy1pg01-4c.jpg GRAPHIC 274157
6 GRAPHIC px_23immunogenproxy1pg02-4c.jpg GRAPHIC 242906
7 GRAPHIC sg_goldmansach-bw.jpg GRAPHIC 9017
8 GRAPHIC sg_stephensands-bw.jpg GRAPHIC 6789
  Complete submission text file 0001104659-23-128277.txt   2857526
Mailing Address 830 WINTER ST WALTHAM MA 02451
Business Address 830 WINTER ST WALTHAM MA 02451 (781)895-0600
ImmunoGen, Inc. (Filer) CIK: 0000855654 (see all company filings)

IRS No.: 042726691 | State of Incorp.: MA | Fiscal Year End: 1231
Type: PREM14A | Act: 34 | File No.: 000-17999 | Film No.: 231505969
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)