August 7, 2017 / 9:19 PM / 2 years ago

BRIEF-Polygon Management Ltd reports 5.2 pct passive stake in Immunogen Inc - SEC Filing

Aug 7 (Reuters) - Immunogen Inc

* Polygon Management Ltd reports 5.2 percent passive stake in Immunogen Inc, as of August 2, 2017 - SEC Filing Source text: (bit.ly/2uAaTff) Further company coverage:

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