Shareholder Holders Values ($) % O/S Shares
Institution 218 151 78.81 68,846,098
Mutual Fund 141 70 23.62 20,634,792
Shareholder Holders Values Change ($) % O/S Shares Change
Buyers 98 15.27 6.93 6,052,907
Sellers 107 -25.84 13.20 -11,534,062
Net -- -10.56 6.27 -5,481,155
Shareholder Values ($) % O/S Shares
Top 10 Inst. 94 49.51 43,250,553
Top 20 Inst. 116.11 62.13 54,274,462
Top 50 Inst. 141.18 73.56 64,259,542
Total Inst. 141.18 73.56 64,259,542
Shareholder Holders Values ($) % O/S Shares
Index 26 27 15.35 13,410,676
CoreGrowth 32 13 5.77 5,039,267
Growth 10 1 0.41 354,524
IncomeValue 2 1 0.28 244,490
Yield 3 0 0.00 4,011
BrokerDealer 22 9 5.32 4,645,636
GARP 22 48 24.00 20,968,763
HedgeFund 17 21 11.61 10,137,646
SectorSpecific 1 12 6.98 6,095,647
Specialty 3 2 1.32 1,156,757
CoreValue 18 6 3.54 3,091,851
DeepValue 7 2 0.86 749,623
Momentum 1 0 0.00 4,218
Holder Shares Held % O/S Shares Change Filing Date
ClearBridge Investments, LLC 13,544,332 15.51 -1,630,394 12/31/2016
OrbiMed Advisors, LLC 6,095,647 6.98 0 12/31/2016
BlackRock Institutional Trust Company, N.A. 4,691,945 5.37 -746,472 12/31/2016
The Vanguard Group, Inc. 4,083,290 4.67 -1,813,031 12/31/2016
PRIMECAP Management Company 3,966,000 4.54 -1,086,943 02/28/2017
Baker Bros. Advisors LP 3,015,353 3.45 0 12/31/2016
Renaissance Technologies LLC 2,481,740 2.84 -21,600 12/31/2016
Millennium Management LLC 2,218,350 2.54 404,030 12/31/2016
Pinnacle Associates Ltd. 1,623,124 1.86 -116,052 12/31/2016
Norges Bank Investment Management (NBIM) 1,530,772 1.75 0 12/31/2016
State Street Global Advisors (US) 1,526,398 1.75 45,628 12/31/2016
Deutsche Asset Management Americas 1,493,940 1.71 219,207 12/31/2016
Wells Fargo Advisors 1,397,649 1.60 -56,050 12/31/2016
PanAgora Asset Management Inc. 1,358,863 1.56 518,059 12/31/2016
Managed Account Advisors LLC 1,155,257 1.32 -182,963 12/31/2016
Northern Trust Investments, Inc. 955,647 1.09 30,832 12/31/2016
Morgan Stanley Wealth Management 859,126 0.98 -92,422 12/31/2016
Fidelity Management & Research Company 802,029 0.92 -1,391,217 12/31/2016
Schonfeld Strategic Advisors LLC 775,000 0.89 775,000 12/31/2016
Delaware Investments 700,000 0.80 -230,000 12/31/2016
Geode Capital Management, L.L.C. 655,352 0.75 15,760 12/31/2016
Raymond James & Associates, Inc. 642,160 0.74 -15,042 12/31/2016
Goldman Sachs & Company, Inc. 627,263 0.72 -16,981 12/31/2016
Enyedy (Mark J) 600,100 0.69 500,000 02/21/2017
TIAA Global Asset Management 472,827 0.54 -5,903 12/31/2016
D. E. Shaw & Co., L.P. 449,256 0.51 402,839 12/31/2016
Susquehanna Financial Group, LLLP 441,184 0.51 407,600 12/31/2016
Medical Strategy GmbH 423,266 0.48 152,233 11/30/2016
Morgan Stanley & Co. LLC 404,941 0.46 228,602 12/31/2016
Charles Schwab Investment Management, Inc. 398,768 0.46 10,164 12/31/2016
Two Sigma Investments, LP 379,086 0.43 -13,542 12/31/2016
Oppenheim Asset Management Services S.à r.l. 373,862 0.43 188,395 12/31/2016
Analytic Investors, LLC 335,935 0.38 335,935 12/31/2016
BlackRock Investment Management, LLC 320,809 0.37 3,322 12/31/2016
KBC Group NV 281,720 0.32 281,720 12/31/2016
Gregory (Richard J) 276,481 0.32 237,250 02/21/2017
Quantitative Investment Management LLC 267,300 0.31 221,400 12/31/2016
Fisher Investments 248,576 0.28 -5,125 12/31/2016
Granahan Investment Management, Inc. 246,960 0.28 246,960 09/30/2016
APG Asset Management 240,300 0.28 240,300 12/31/2015
BNY Mellon Asset Management 217,022 0.25 -9,762 12/31/2016
Citi Investment Research (US) 203,693 0.23 42,129 12/31/2016
Johnston David Brannon 201,750 0.23 191,750 02/21/2017
Moloney Securities Asset Management, LLC 201,550 0.23 201,550 12/31/2016
Junius (Daniel M) 196,700 0.23 0 10/14/2016
Citadel LLC 185,518 0.21 22,933 12/31/2016
Credit Suisse Securities (USA) LLC 184,451 0.21 28,986 12/31/2016
California State Teachers Retirement System 173,450 0.20 -4,400 12/31/2016
Barrows (Craig) 171,500 0.20 140,400 02/21/2017
Berkenblit (Anna M.D.) 163,300 0.19 157,300 02/21/2017

Ownership data is current as of filing date shown and is provided by Thompson Reuters, a third party service, and ImmunoGen, Inc. does not maintain or provide information directly to this service.


You are now leaving this website. If you would like to continue, click Continue.
CancelContinue