Alnylam

Ownership Profile


Shareholder Breakdown
  Holders Values ($) % O/S Shares
Institution 443 13,368.05 105.58 105,765,729
Mutual Fund 730 7,144.46 59.10 59,204,490
Institutional Shareholder Rotation
  Holders Values Change ($) % O/S Shares Change
Buyers 254 1,661.07 13.15 13,176,389
Sellers 135 -1,029.45 8.18 -8,189,343
Net -- 631.62 4.97 4,987,046
Institutional Shareholder Concentration
  Values ($) % O/S Shares
Top 10 Inst. 9,406 73.91 74,036,084
Top 20 Inst. 10,665.99 83.88 84,026,866
Top 50 Inst. 12,110.63 95.41 95,576,325
Total Inst. 12,110.63 95.41 95,576,325
Institutional Shareholder Style
  Holders Values ($) % O/S Shares
Index 41 2,241 17.62 17,645,939
AggresGr 6 18 0.15 147,552
CoreGrowth 83 1,253 9.91 9,930,541
Growth 24 157 1.27 1,268,521
IncomeValue 7 109 0.86 860,057
Yield 7 8 0.07 66,277
BrokerDealer 17 266 2.09 2,097,438
GARP 50 3,724 29.32 29,372,915
HedgeFund 44 982 7.91 7,925,794
SectorSpecific 2 185 1.46 1,457,832
Specialty 4 9 0.07 71,529
CoreValue 51 1,654 13.05 13,068,842
DeepValue 10 1,132 8.90 8,916,055
Top Holders: Institutional Investor
  Shares Held % O/S Shares Change Filing Date
Fidelity Management & Research Company 14,773,621 14.75 1,109,616 12/31/2017
T. Rowe Price Associates, Inc. 12,233,241 12.21 3,668,358 12/31/2017
Sanofi SA 10,554,134 10.54 0 12/31/2017
Wellington Management Company, LLP 9,182,530 9.17 -2,118,787 12/31/2017
Dodge & Cox 8,231,595 8.22 -909,900 12/31/2017
The Vanguard Group, Inc. 7,263,914 7.25 771,016 12/31/2017
BlackRock Institutional Trust Company, N.A. 4,845,346 4.84 360,935 12/31/2017
Baillie Gifford & Co. 3,611,014 3.60 205,622 12/31/2017
State Street Global Advisors (US) 2,002,389 2.00 -40,932 12/31/2017
Blue Ridge Capital, L.L.C. 1,338,300 1.34 -193,599 12/31/2017
Perceptive Advisors LLC 1,330,802 1.33 -458,000 12/31/2017
Gilder Gagnon Howe & Co. LLC 1,210,422 1.21 -6,945 03/31/2018
BlackRock Financial Management, Inc. 1,204,546 1.20 134,744 12/31/2017
Goldman Sachs & Company, Inc. 1,103,008 1.10 -576,324 12/31/2017
Bellevue Asset Management AG 1,073,438 1.07 -113,493 12/31/2017
OrbiMed Advisors, LLC 941,600 0.94 -143,200 12/31/2017
Morgan Stanley Investment Management Inc. (US) 885,787 0.88 -28,437 12/31/2017
UBS Asset Management (Switzerland) 751,272 0.75 78,912 12/31/2017
Geode Capital Management, L.L.C. 747,646 0.75 88,119 12/31/2017
Norges Bank Investment Management (NBIM) 742,261 0.74 77,598 12/31/2017
12 West Capital Management, L.P. 700,000 0.70 0 12/31/2017
Pictet Asset Management Ltd. 646,038 0.64 292,564 03/31/2018
Federated Global Investment Management Corp. 582,900 0.58 453,700 12/31/2017
First Trust Advisors L.P. 571,398 0.57 -213,221 12/31/2017
BlackRock Investment Management (UK) Ltd. 562,336 0.56 173,077 12/31/2017
Polar Capital LLP 516,232 0.52 516,232 12/31/2017
Bridger Management, LLC 500,219 0.50 116,286 12/31/2017
Janus Henderson Investors 493,619 0.49 -189,401 12/31/2017
UBS Asset Management (Americas), Inc. 454,443 0.45 -13,651 12/31/2017
Invus Public Equities Advisors, LLC 450,000 0.45 200,000 12/31/2017
Mitsubishi UFJ Trust and Banking Corporation 449,655 0.45 171,308 12/31/2017
Slate Path Capital LP 447,000 0.45 -114,000 12/31/2017
Two Sigma Investments, LP 411,398 0.41 265,485 12/31/2017
Northern Trust Investments, Inc. 373,124 0.37 31,938 12/31/2017
RTW Investments, LLC 358,774 0.36 -264,564 12/31/2017
Nuveen LLC 358,097 0.36 156,191 12/31/2017
Schweizerische Nationalbank 326,500 0.33 188,600 12/31/2017
ArrowMark Colorado Holdings, LLC 309,039 0.31 -194,850 12/31/2017
Schimmel (Paul R Ph.D.) 306,996 0.31 0 03/13/2018
Adage Capital Management, L.P. 290,000 0.29 290,000 12/31/2017
D. E. Shaw & Co., L.P. 272,720 0.27 -709,734 12/31/2017
Sharp (Philip A. Ph.D.) 266,899 0.27 0 03/13/2018
Charles Schwab Investment Management, Inc. 262,416 0.26 17,866 12/31/2017
Lord, Abbett & Co. LLC 256,802 0.26 141,050 12/31/2017
Rockefeller Financial 246,931 0.25 -76,433 12/31/2017
Sumitomo Mitsui Trust Bank, Limited 239,816 0.24 239,816 12/31/2017
Morgan Stanley & Co. LLC 233,587 0.23 199,790 12/31/2017
Credit Suisse Securities (USA) LLC 225,837 0.23 66,911 12/31/2017
Ziff Brothers Investments, L.L.C. 219,602 0.22 -113,964 09/30/2016
New York State Common Retirement Fund 217,081 0.22 593 12/31/2017

Ownership data is provided by Thomson Reuters, a third party service, and Alnylam Pharmaceuticals, Inc. does not maintain or provide information directly to this service.