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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0001193805-22-000840
Filing Date
2022-05-19
Accepted
2022-05-19 16:50:53
Documents
1
Group Members
DEERFIELD MANAGEMENT COMPANY, L.P.DEERFIELD MGMT, L.P.DEERFIELD PARTNERS, L.P.

Document Format Files

Seq Description Document Type Size
1 e621682_sc13g-immunogen.htm SC 13G 95916
  Complete submission text file 0001193805-22-000840.txt   97327
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.: 22943819
SIC: 2834 Pharmaceutical Preparations

Mailing Address 780 THIRD AVENUE 37TH FLOOR NEW YORK NY 10017
Business Address
Flynn James E (Filed by) CIK: 0001352546 (see all company filings)

Type: SC 13G