Shareholder Holders Values ($) % O/S Shares
Institution 225 555 89.74 80,409,327
Mutual Fund 150 174 31.48 28,206,833
Shareholder Holders Values Change ($) % O/S Shares Change
Buyers 91 124.61 19.76 17,708,274
Sellers 104 -61.58 10.46 -9,376,276
Net -- 63.03 9.30 8,331,998
Shareholder Values ($) % O/S Shares
Top 10 Inst. 369 57.87 51,848,529
Top 20 Inst. 444.90 71.06 63,665,880
Top 50 Inst. 515.15 83.05 74,411,560
Total Inst. 515.15 83.05 74,411,560
Shareholder Holders Values ($) % O/S Shares
Index 25 117 18.33 16,422,500
AggresGr 2 2 0.24 215,378
CoreGrowth 35 33 5.34 4,783,615
Growth 10 1 0.39 353,237
IncomeValue 3 2 0.31 279,615
Yield 4 1 0.10 87,229
BrokerDealer 17 25 3.98 3,568,180
GARP 22 187 29.31 26,261,173
HedgeFund 21 78 12.21 10,937,255
SectorSpecific 2 65 10.21 9,151,008
Specialty 3 8 1.26 1,126,691
CoreValue 15 19 4.23 3,790,477
DeepValue 8 3 0.43 386,210
Momentum 1 0 0.00 4,218
Holder Shares Held % O/S Shares Change Filing Date
ClearBridge Investments, LLC 12,871,696 14.37 -1,557,160 06/30/2017
Fidelity Management & Research Company 5,605,285 6.26 4,803,256 06/30/2017
Redmile Group, LLC 5,212,736 5.82 1,228,002 06/30/2017
BlackRock Institutional Trust Company, N.A. 4,902,959 5.47 12,318 06/30/2017
The Vanguard Group, Inc. 4,248,688 4.74 138,257 06/30/2017
State Street Global Advisors (US) 4,141,583 4.62 2,542,876 06/30/2017
Millennium Management LLC 4,029,457 4.50 2,922,762 06/30/2017
OrbiMed Advisors, LLC 3,938,272 4.40 -2,157,375 06/30/2017
PRIMECAP Management Company 3,882,500 4.33 -83,500 06/30/2017
Baker Bros. Advisors LP 3,015,353 3.37 0 06/30/2017
PanAgora Asset Management Inc. 1,553,138 1.73 81,375 06/30/2017
Norges Bank Investment Management (NBIM) 1,530,772 1.71 0 12/31/2016
Pinnacle Associates Ltd. 1,517,639 1.69 -72,320 06/30/2017
Wells Fargo Advisors 1,498,767 1.67 -24,957 06/30/2017
Schonfeld Strategic Advisors LLC 1,136,394 1.27 111,218 06/30/2017
Managed Account Advisors LLC 1,124,491 1.26 -149,380 06/30/2017
Northern Trust Investments, Inc. 985,892 1.10 -10,929 06/30/2017
Morgan Stanley Wealth Management 897,918 1.00 -6,581 06/30/2017
Macquarie Investment Management 850,000 0.95 150,000 06/30/2017
Renaissance Technologies LLC 722,340 0.81 -755,606 06/30/2017
Geode Capital Management, L.L.C. 713,190 0.80 34,847 06/30/2017
Enyedy (Mark J) 600,100 0.67 0 04/17/2017
EAM Investors, LLC 582,865 0.65 582,865 06/30/2017
Candriam Luxembourg S.A. 570,000 0.64 570,000 06/30/2017
Goldman Sachs & Company, Inc. 557,836 0.62 -18,752 06/30/2017
Raymond James & Associates, Inc. 547,917 0.61 -80,319 06/30/2017
Medical Strategy GmbH 543,988 0.61 -11,300 06/30/2017
Deutsche Asset Management Americas 518,281 0.58 -831,712 06/30/2017
Farallon Capital Management, L.L.C. 505,000 0.56 505,000 06/30/2017
Oppenheim Asset Management Services S.à r.l. 409,862 0.46 36,000 06/30/2017
Nuveen LLC 406,390 0.45 -27,755 06/30/2017
Jacobs Levy Equity Management, Inc. 350,634 0.39 350,634 06/30/2017
Charles Schwab Investment Management, Inc. 331,898 0.37 1,919 06/30/2017
Invesco Advisers, Inc. 319,860 0.36 319,860 06/30/2017
BlackRock Investment Management, LLC 311,117 0.35 -2,801 06/30/2017
AXA Rosenberg Investment Management LLC 307,800 0.34 256,900 06/30/2017
Gregory (Richard J) 276,481 0.31 0 04/17/2017
APG Asset Management 275,167 0.31 34,867 03/31/2017
Fisher Investments 256,206 0.29 2,530 06/30/2017
BNY Mellon Asset Management 252,355 0.28 -19,862 06/30/2017
Granahan Investment Management, Inc. 246,960 0.28 246,960 09/30/2016
Citi Investment Research (US) 243,824 0.27 140,433 06/30/2017
Paulson & Co. Inc. 229,222 0.26 229,222 06/30/2017
Fernwood Investment Management, LLC. 218,500 0.24 218,500 06/30/2017
Columbia Threadneedle Investments (US) 218,393 0.24 -176,377 06/30/2017
Chicago Equity Partners, LLC 218,320 0.24 218,320 06/30/2017
Johnston David Brannon 201,750 0.23 0 04/17/2017
Junius (Daniel M) 196,700 0.22 0 04/17/2017
Barrows (Craig) 171,500 0.19 140,400 02/21/2017
Mellon Capital Management Corporation 163,564 0.18 10,100 06/30/2017

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.


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