Form 144 - Report of proposed sale of securities:
SEC Accession No. 0001964306-23-000141
Filing Date
2023-08-02
Accepted
2023-08-02 18:54:05
Documents
1

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 144  
1 primary_doc.xml 144 2792
  Complete submission text file 0001964306-23-000141.txt   4147
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)

EIN.: 042726691 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 144 | Act: 33 | File No.: 000-17999 | Film No.: 231137523
SIC: 2834 Pharmaceutical Preparations

Mailing Address 830 WINTER STREET WALTHAM MA 02451
Business Address
Lentini Renee (Reporting) CIK: 0001838777 (see all company filings)

Type: 144