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Filing metadata

Accession number: 0001179110-14-014369
Form type: Form 3
Filer: ImmunoGen, Inc.
CIK: CIK 855654
Filed: Sep 22, 2014
Reporting period: Sep 15, 2014
Description: Initial ownership

Documents

0001179110-14-014369-index.htm

Complete submission

0001179110-14-014369.txt

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Filed by

ImmunoGen, Inc.