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Filing Detail
Form 424B5 - Prospectus [Rule 424(b)(5)]:
SEC Accession No. 0001104659-20-108918
Filing Date
2020-09-25
Accepted
2020-09-25 16:23:51
Documents
3

Document Format Files

Seq Description Document Type Size
1 424B5 tm2031617-1_424b5.htm 424B5 372131
2 GRAPHIC lg_immunogen-4c.jpg GRAPHIC 258638
3 GRAPHIC lg_immunogennew-4c.jpg GRAPHIC 111685
  Complete submission text file 0001104659-20-108918.txt   841541
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.: 333-223507 | Film No.: 201200393
SIC: 2834 Pharmaceutical Preparations