SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 424B2 - Prospectus [Rule 424(b)(2)]:
SEC Accession No. 0001047469-17-003363
Filing Date
2017-05-11
Accepted
2017-05-11 17:12:28
Documents
2

Document Format Files

Seq Description Document Type Size
1 424B2 a2232151z424b2.htm 424B2 133623
2 G579169.JPG g579169.jpg GRAPHIC 14131
  Complete submission text file 0001047469-17-003363.txt   154143
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: 0630
Type: 424B2 | Act: 33 | File No.: 333-216438 | Film No.: 17835398
SIC: 2834 Pharmaceutical Preparations