SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form S-3ASR - Automatic shelf registration statement of securities of well-known seasoned issuers:
SEC Accession No. 0001104659-20-137461
Filing Date
2020-12-18
Accepted
2020-12-18 16:45:22
Documents
8
Effectiveness Date
2020-12-18

Document Format Files

Seq Description Document Type Size
1 S-3ASR tm2038486-6_s3asr.htm S-3ASR 338391
2 EXHIBIT 4.7 tm2038486d2_ex4-7.htm EX-4.7 355823
3 EXHIBIT 4.8 tm2038486d2_ex4-8.htm EX-4.8 362120
4 EXHIBIT 5.1 tm2038486d2_ex5-1.htm EX-5.1 41051
5 EX-23.1 tm2038486d2_ex23-1.htm EX-23.1 2596
6 GRAPHIC lg_immunogen-4c.jpg GRAPHIC 18292
7 GRAPHIC tm2038486d2_ex5-1img001.jpg GRAPHIC 4900
8 GRAPHIC tm2038486d2_ex5-1img002.jpg GRAPHIC 2310
  Complete submission text file 0001104659-20-137461.txt   1136513
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: 1231
Type: S-3ASR | Act: 33 | File No.: 333-251502 | Film No.: 201401142
SIC: 2834 Pharmaceutical Preparations