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Filing Detail
Form S-3ASR - Automatic shelf registration statement of securities of well-known seasoned issuers:
SEC Accession No. 0001047469-15-007009
Filing Date
2015-08-27
Accepted
2015-08-27 16:48:55
Documents
8
Effectiveness Date
2015-08-27

Document Format Files

Seq Description Document Type Size
1 S-3ASR a2225823zs-3asr.htm S-3ASR 214591
2 EX-4.7 a2225823zex-4_7.htm EX-4.7 461992
3 EX-4.8 a2225823zex-4_8.htm EX-4.8 456452
4 EX-5.1 a2225823zex-5_1.htm EX-5.1 42787
5 EX-12.1 a2225823zex-12_1.htm EX-12.1 19884
6 EX-23.1 a2225823zex-23_1.htm EX-23.1 4059
7 G458904.JPG g458904.jpg GRAPHIC 10236
8 G185302KKI001.JPG g185302kki001.jpg GRAPHIC 2454
  Complete submission text file 0001047469-15-007009.txt   1218487
Mailing Address 830 WINTER ST WALTHAM MA 02451
Business Address 830 WINTER ST WALTHAM MA 02451 (781)895-0600
IMMUNOGEN INC (Filer) CIK: 0000855654 (see all company filings)

IRS No.: 042726691 | State of Incorp.: MA | Fiscal Year End: 0630
Type: S-3ASR | Act: 33 | File No.: 333-206621 | Film No.: 151079264
SIC: 2834 Pharmaceutical Preparations