Shareholder Holders Values ($) % O/S Shares
Institution 231 564 71.77 80,537,093
Mutual Fund 172 237 28.73 32,240,160
Shareholder Holders Values Change ($) % O/S Shares Change
Buyers 98 131.25 16.47 18,478,773
Sellers 72 -55.41 6.90 -7,746,848
Net -- 75.84 9.57 10,731,925
Shareholder Values ($) % O/S Shares
Top 10 Inst. 365 44.93 50,422,444
Top 20 Inst. 443.25 55.61 62,407,655
Top 50 Inst. 520.49 66.07 74,141,611
Total Inst. 520.49 66.07 74,141,611
Shareholder Holders Values ($) % O/S Shares
Index 25 117 14.63 16,421,894
AggresGr 2 2 0.19 215,378
CoreGrowth 38 33 4.30 4,829,602
Growth 10 1 0.32 353,497
IncomeValue 4 9 1.04 1,169,816
Yield 4 1 0.08 87,229
BrokerDealer 17 25 3.18 3,568,180
GARP 24 186 22.69 25,460,788
HedgeFund 21 78 9.75 10,937,255
SectorSpecific 2 65 8.15 9,151,008
Specialty 3 8 1.00 1,126,691
CoreValue 15 19 3.38 3,790,477
DeepValue 7 3 0.34 381,914
Momentum 1 0 0.00 4,218
Holder Shares Held % O/S Shares Change Filing Date
ClearBridge Investments, LLC 11,445,611 10.20 -1,426,085 09/30/2017
Fidelity Management & Research Company 5,605,285 4.99 4,803,256 06/30/2017
Redmile Group, LLC 5,212,736 4.65 1,228,002 06/30/2017
BlackRock Institutional Trust Company, N.A. 4,902,959 4.37 12,318 06/30/2017
The Vanguard Group, Inc. 4,248,688 3.79 138,257 06/30/2017
State Street Global Advisors (US) 4,141,583 3.69 2,542,876 06/30/2017
Millennium Management LLC 4,029,457 3.59 2,922,762 06/30/2017
OrbiMed Advisors, LLC 3,938,272 3.51 -2,157,375 06/30/2017
PRIMECAP Management Company 3,882,500 3.46 -83,500 06/30/2017
Baker Bros. Advisors LP 3,015,353 2.69 0 06/30/2017
PanAgora Asset Management Inc. 1,553,138 1.38 81,375 06/30/2017
Norges Bank Investment Management (NBIM) 1,530,772 1.36 0 12/31/2016
Pinnacle Associates Ltd. 1,517,639 1.35 -72,320 06/30/2017
Wells Fargo Advisors 1,498,767 1.34 -24,957 06/30/2017
Schonfeld Strategic Advisors LLC 1,136,394 1.01 111,218 06/30/2017
Managed Account Advisors LLC 1,124,491 1.00 -149,380 06/30/2017
Northern Trust Investments, Inc. 985,892 0.88 -10,929 06/30/2017
Morgan Stanley Wealth Management 897,918 0.80 -6,581 06/30/2017
Franklin Advisers, Inc. 890,200 0.79 890,200 08/31/2017
Macquarie Investment Management 850,000 0.76 150,000 06/30/2017
Renaissance Technologies LLC 722,340 0.64 -755,606 06/30/2017
Geode Capital Management, L.L.C. 713,190 0.64 34,847 06/30/2017
Enyedy (Mark J) 600,100 0.53 0 04/17/2017
EAM Investors, LLC 582,865 0.52 582,865 06/30/2017
Medical Strategy GmbH 574,988 0.51 19,700 06/30/2017
Candriam Luxembourg S.A. 570,000 0.51 570,000 06/30/2017
Candriam Belgium S.A. 570,000 0.51 0 07/31/2017
Goldman Sachs & Company, Inc. 557,836 0.50 -18,752 06/30/2017
Raymond James & Associates, Inc. 547,917 0.49 -80,319 06/30/2017
Deutsche Asset Management Americas 518,281 0.46 -831,712 06/30/2017
Farallon Capital Management, L.L.C. 505,000 0.45 505,000 06/30/2017
Oppenheim Asset Management Services S.à r.l. 409,862 0.37 36,000 06/30/2017
Nuveen LLC 406,390 0.36 -27,755 06/30/2017
Jacobs Levy Equity Management, Inc. 350,634 0.31 350,634 06/30/2017
Charles Schwab Investment Management, Inc. 331,898 0.30 1,919 06/30/2017
Invesco Advisers, Inc. 319,860 0.29 319,860 06/30/2017
BlackRock Investment Management, LLC 311,117 0.28 -2,801 06/30/2017
AXA Rosenberg Investment Management LLC 307,800 0.27 256,900 06/30/2017
Gregory (Richard J) 276,481 0.25 0 04/17/2017
APG Asset Management 275,167 0.25 34,867 03/31/2017
Fisher Investments 256,206 0.23 2,530 06/30/2017
BNY Mellon Asset Management 252,355 0.22 -19,862 06/30/2017
Granahan Investment Management, Inc. 246,960 0.22 246,960 09/30/2016
Citi Investment Research (US) 243,824 0.22 140,433 06/30/2017
Paulson & Co. Inc. 229,222 0.20 229,222 06/30/2017
Fernwood Investment Management, LLC. 218,500 0.19 218,500 06/30/2017
Columbia Threadneedle Investments (US) 218,393 0.19 -176,377 06/30/2017
Chicago Equity Partners, LLC 218,320 0.19 218,320 06/30/2017
Johnston David Brannon 201,750 0.18 0 04/17/2017
Junius (Daniel M) 196,700 0.18 0 04/17/2017

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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