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Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0000902664-22-005295
Filing Date
2022-12-27
Accepted
2022-12-27 16:30:40
Documents
1

Document Format Files

Seq Description Document Type Size
1 IMMUNOGEN, INC. p22-2731sc13g.htm SC 13G 107889
  Complete submission text file 0000902664-22-005295.txt   109531
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: SC 13G | Act: 34 | File No.: 005-40774 | Film No.: 221490589
SIC: 2834 Pharmaceutical Preparations

Mailing Address 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116
Business Address 200 CLARENDON STREET 52ND FLOOR BOSTON MA 02116 (617) 867-2800
ADAGE CAPITAL PARTNERS GP, L.L.C. (Filed by) CIK: 0001165408 (see all company filings)

IRS No.: 043574590 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G