Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001567619-20-003753
Filing Date
2020-02-14
Accepted
2020-02-14 12:38:45
Documents
1

Document Format Files

Seq Description Document Type Size
1 NONE doc1.htm SC 13G/A 64402
  Complete submission text file 0001567619-20-003753.txt   66036
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: SC 13G/A | Act: 34 | File No.: 005-40774 | Film No.: 20616917
SIC: 2834 Pharmaceutical Preparations

Mailing Address 620 8TH AVENUE NEW YORK NY 10018
Business Address 620 8TH AVENUE NEW YORK NY 10018 800-691-6959
Clearbridge Investments, LLC (Filed by) CIK: 0001348883 (see all company filings)

EIN.: 010846058
Type: SC 13G/A