Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902664-18-001057
Filing Date
2018-02-14
Accepted
2018-02-14 10:27:06
Documents
1
Group Members
PATRICK G. G. DEARPOLYGON CONVERTIBLE OPPORTUNITY MASTER FUNDPOLYGON GLOBAL PARTNERS LLPPOLYGON GLOBAL PARTNERS LPREADE E. GRIFFITHTFG ASSET MANAGEMENT L.P.

Document Format Files

Seq Description Document Type Size
1 IMMUNOGEN, INC. p18-0304sc13ga.htm SC 13G/A 129185
  Complete submission text file 0000902664-18-001057.txt   130894
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: 0630
Type: SC 13G/A | Act: 34 | File No.: 005-40774 | Film No.: 18608441
SIC: 2834 Pharmaceutical Preparations

Mailing Address PO BOX 309 UGLAND HOUSE GRAND CAYMAN E9 KY1-1104
Business Address PO BOX 309 UGLAND HOUSE GRAND CAYMAN E9 KY1-1104 212-359-7356
Polygon Management Ltd. (Filed by) CIK: 0001515070 (see all company filings)

EIN.: 980646182 | State of Incorp.: E9 | Fiscal Year End: 1231
Type: SC 13G/A