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Filing metadata

Accession number: 0001179110-10-011870
Form type: Form 4
Filer: IMMUNOGEN INC
CIK: CIK 855654
Filed: Jul 26, 2010
Reporting period: Jul 23, 2010
Description: Insider transaction

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0001179110-10-011870-index.htm

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0001179110-10-011870.txt

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