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Form EFFECT - Notice of Effectiveness:
SEC Accession No. 9999999995-17-001251
Accepted
2017-05-12 00:15:12
Documents
1
Effectiveness Date
2017-05-11
Registration Form
S-3

Document Format Files

Seq Description Document Type Size
1 primary_doc.html EFFECT  
1 primary_doc.xml EFFECT 583
  Complete submission text file 9999999995-17-001251.txt   1632
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: EFFECT | Act: 33 | File No.: 333-216438 | Film No.: 17836241
SIC: 2834 Pharmaceutical Preparations