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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0000895345-08-000392
Filing Date
2008-06-30
Accepted
2008-06-30 11:32:50
Documents
1
Period of Report
2008-06-20

Document Format Files

Seq Description Document Type Size
1 jf3-immunogen_ziffex.html 3  
1 jf3-immunogen_ziffex.xml 3 6801
  Complete submission text file 0000895345-08-000392.txt   10063
Mailing Address 128 SIDNEY ST CAMBRIDGE MA 02139
Business Address 128 SIDNEY ST CAMBRIDGE MA 02139 6179952506
IMMUNOGEN INC (Issuer) CIK: 0000855654 (see all company filings)

IRS No.: 042726691 | State of Incorp.: MA | Fiscal Year End: 0630
SIC: 2834 Pharmaceutical Preparations
Assistant Director 1

Mailing Address 153 EAST 53RD STREET 43RD FLOOR NEW YORK NY 10022
Business Address 153 EAST 53RD STREET 43RD FLOOR NEW YORK NY 10022 2122925900
ZIFF ASSET MANAGEMENT LP (Reporting) CIK: 0001054458 (see all company filings)

Type: 3 | Act: 34 | File No.: 000-17999 | Film No.: 08924520

Mailing Address 283 GREENWICH AVE GREENWICH CT 06830
Business Address 283 GREENWICH AVE GREENWICH CT 06830 2036227112
PBK HOLDINGS INC (Reporting) CIK: 0001059932 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 000-17999 | Film No.: 08924518

Mailing Address 283 GREENWICH AVE GREENWICH CT 06830
Business Address 2036227112
KORSANT PHILIP B (Reporting) CIK: 0001271455 (see all company filings)

Type: 3 | Act: 34 | File No.: 000-17999 | Film No.: 08924517

Mailing Address 350 PARK AVENUE 11TH FLOOR NEW YORK NY 10022
Business Address 283 GREENWICH AVENUE GREENWICH CT 06830 2122926658
ZBI Equities, L.L.C. (Reporting) CIK: 0001438572 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 000-17999 | Film No.: 08924519