Equity Capital Markets

Company · CIK 855654

ImmunoGen, Inc.

CIK855654 (SEC EDGAR)
Industry (SIC)2834 — Pharmaceutical Preparations
Incorporated inMA
Business addressMA
Listedno ticker on SEC record today
First annual or quarterly report1995-05-15

Offerings

8 registrations
RegistrationLabel and statusFirst filedLast eventFilings
333-251502
ShelfEffective
 2020-12-182023-05-057
333-223507
ShelfEffective
 2018-03-072020-09-256
333-216438
ShelfEffective
 2017-03-032017-10-065
333-206621
ShelfEffective
 2015-08-272015-08-271
333-174335
ShelfEffective
 2011-05-192012-07-125
333-165981
ShelfEffective
 2010-04-092010-05-074
333-144488
ShelfEffective
 2007-07-112009-06-185
333-152502
ShelfEffective
 2008-07-242008-08-062

Filings

35
FiledFilingRegistrationAccession
2023-05-05424B5Shelf takedown 333-2515020001104659-23-056608
2023-05-03424B5Shelf takedown 333-2515020001104659-23-055486
2021-12-03424B5Shelf takedown 333-2515020001104659-21-146340
2021-11-30424B5Shelf takedown 333-2515020001104659-21-145026
2021-08-12424B5Shelf takedown 333-2515020001104659-21-103845
2020-12-18424B5Shelf takedown 333-2515020001104659-20-137497
2020-12-18S-3ASRShelf registered 333-2515020001104659-20-137461
2020-09-25424B5Shelf takedown 333-2235070001104659-20-108918
2020-01-23424B5Shelf takedown 333-2235070001047469-20-000445
2020-01-22424B5Shelf takedown 333-2235070001047469-20-000389
2018-06-07424B5Shelf takedown 333-2235070001047469-18-004326
2018-06-05424B5Shelf takedown 333-2235070001047469-18-004273
2018-03-07S-3ASRShelf registered 333-2235070001047469-18-001375
2017-10-06424B5Shelf takedown 333-2164380001047469-17-006261
2017-10-04424B5Shelf takedown 333-2164380001047469-17-006213
2017-05-11EFFECTDeclared effective 333-2164389999999995-17-001251
2017-05-11424B5Shelf takedown 333-2164380001047469-17-003364
2017-03-03S-3Shelf registered 333-2164380001047469-17-001245
2015-08-27S-3ASRShelf registered 333-2066210001047469-15-007009
2012-07-12424B5Shelf takedown 333-1743350001047469-12-007170
2012-07-12424B5Shelf takedown 333-1743350001047469-12-007150
2011-05-20424B5Shelf takedown 333-1743350001047469-11-005410
2011-05-20424B5Shelf takedown 333-1743350001047469-11-005372
2011-05-19S-3ASRShelf registered 333-1743350001047469-11-005357
2010-05-07424B5Shelf takedown 333-1659810001047469-10-004936
2010-05-06424B5Shelf takedown 333-1659810001047469-10-004845
2010-04-22EFFECTDeclared effective 333-1659819999999995-10-001146
2010-04-09S-3Shelf registered 333-1659810001047469-10-003577
2009-06-18424B5Shelf takedown 333-1444880001047469-09-006421
2009-06-17424B5Shelf takedown 333-1444880001047469-09-006407
2008-08-06EFFECTDeclared effective 333-1525029999999995-08-002449
2008-07-24S-3Shelf registered 333-1525020001104659-08-047441
2008-06-24424B5Shelf takedown 333-1444880001047469-08-007656
2007-08-13EFFECTDeclared effective 333-1444889999999995-07-003290
2007-07-11S-3Shelf registered 333-1444880001104659-07-053379

All filings of this company · CSV