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Form 144 - Report of proposed sale of securities:
SEC Accession No. 0001964306-23-000285
Filing Date
2023-11-17
Accepted
2023-11-17 17:49:43
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 144  
1 primary_doc.xml 144 4050
  Complete submission text file 0001964306-23-000285.txt   5406
Mailing Address 830 WINTER ST WALTHAM MA 02451
Business Address 830 WINTER ST WALTHAM MA 02451 (781)895-0600
ImmunoGen, Inc. (Subject) CIK: 0000855654 (see all company filings)

IRS No.: 042726691 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 144 | Act: 33 | File No.: 000-17999 | Film No.: 231420210
SIC: 2834 Pharmaceutical Preparations
Office of Life Sciences

Mailing Address 11 RUSH POND RD LAKEVILLE MA 02347
Business Address
Coen Stacy Ann (Reporting) CIK: 0001814150 (see all company filings)

Type: 144