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IMMUNOGEN INC
(45253H101)

Funds Reporting Holdings of IMMUNOGEN INC according to 13F filings
Firm Name Shares Held / Principal Amount Market Value Option Report Period Effectiveness Date
Redmile Group LLC 13,954,794 $30,282k Jun 30, 2019 Aug 14, 2019
Panagora Asset Management Inc 1,459,127 $3,166k Jun 30, 2019 Aug 9, 2019
QVT Financial LP 1,375,900 $2,842k Jun 30, 2019 Aug 14, 2019
Spark Investment Management LLC 220,900 $479k Jun 30, 2019 Aug 12, 2019
Fernwood Investment Management LLC 172,000 $373k Jun 30, 2019 Aug 1, 2019
Tekla Capital Management LLC 168,190 $365k Jun 30, 2019 Aug 14, 2019
Twin Focus Capital Partners LLC 112,873 $245k Jun 30, 2019 Aug 14, 2019
Clear Harbor Asset Management LLC 92,100 $200k Jun 30, 2019 Jul 22, 2019
Marathon Trading Investment Management LLC 22,200 $48k Jun 30, 2019 Aug 14, 2019
Wrapmanager Inc 15,999 $35k Jun 30, 2019 Jul 31, 2019
First Manhattan Co 7,546 $16k Jun 30, 2019 Aug 16, 2019
Arbor Wealth Management LLC 5,000 $11k Jun 30, 2019 Jul 16, 2019
Prelude Capital Management LLC 3,175 $7k Jun 30, 2019 Aug 14, 2019

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