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Filing Detail
Form 424B5 - Prospectus [Rule 424(b)(5)]:
SEC Accession No. 0001104659-21-146340
Filing Date
2021-12-03
Accepted
2021-12-03 16:06:02
Documents
2

Document Format Files

Seq Description Document Type Size
1 424B5 tm2134080-2_424b5.htm 424B5 533407
2 GRAPHIC lg_immunogen-4c.jpg GRAPHIC 18292
  Complete submission text file 0001104659-21-146340.txt   559648
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: 424B5 | Act: 33 | File No.: 333-251502 | Film No.: 211470014
SIC: 2834 Pharmaceutical Preparations
Office of Life Sciences