Who owns Alexion Pharmaceuticals?

Top Holders and Investors of ALXN Stock

Find out what company owns Alexion Pharmaceuticals, who bought ALXN this quarter, and who sold shares of ALXN stock?

Fund or Company Name Number of Shares Valued At As Of
FMR LLC 28.17M $3.45B Dec 2016
T. Rowe Price Associates, Inc. 21.09M $2.58B Dec 2016
The Vanguard Group,Inc 14.03M $1.72B Dec 2016
STATE STREET CORPORATION 10.58M $1.29B Dec 2016
Jennison Associates LLC 8.31M $1.02B Dec 2016
Capital Research Global Investors^ 7.29M $891.98M Dec 2016
Baker Bros. Advisors, LLC 6.54M $800.57M Dec 2016
BlackRock Institutional Trust Company, N.A. 6.09M $745.06M Dec 2016
Ameriprise Financial, Inc. 5.70M $696.84M Dec 2016
Sands Capital Management 5.59M $683.36M Dec 2016
BlackRock Fund Advisors 5.51M $674.17M Dec 2016
Invesco Ltd. 3.70M $452.58M Dec 2016
OrbiMed Advisors, LLC 3.49M $426.80M Dec 2016
Brown Advisory Holdings Incorporated 3.24M $395.92M Dec 2016
Waddell & Reed Financial, Inc. 3.09M $377.73M Dec 2016
Bank of New York Mellon 2.89M $353.87M Dec 2016
ALLIANCEBERNSTEIN, L.P. 2.86M $350.23M Dec 2016
TIAA-CREF Investment Management 2.56M $312.81M Dec 2016
NORTHERN TRUST 2.49M $304.13M Dec 2016
BlackRock Investment Management 2.31M $282.02M Dec 2016
ClearBridge Advisors, LLC 2.27M $277.94M Dec 2016
WINSLOW CAPITAL MANAGEMENT INC /MN 2.13M $260.78M Dec 2016
SUSQUEHANNA INTERNATIONAL 2.08M $255.03M Dec 2016
Franklin Resources, Inc. 2.06M $252.53M Dec 2016
BlackRock Group 1.99M $243.16M Dec 2016
Geode Capital Management, LLC 1.94M $236.87M Dec 2016
Bank of America Corporation 1.91M $233.96M Dec 2016
Wells Fargo & Company 1.88M $230.27M Dec 2016
BlackRock Advisors 1.75M $214.24M Dec 2016
JPMORGAN CHASE & CO 1.72M $209.99M Dec 2016
Manning & Napier Advisors, Inc. 1.32M $162.05M Dec 2016
GOLDMAN SACHS GROUP INC 1.32M $161.71M Dec 2016
American Century Companies, Inc. 1.28M $156.16M Dec 2016
Tourbillon Capital Partners 1.24M $151.43M Dec 2016
BB Biotech AG 1.23M $150.42M Dec 2016
Temasek Holdings (Private) Limited 1.23M $150.08M Dec 2016
DSM Capital Partners 1.11M $136.35M Dec 2016
PointState Capital 1.11M $135.68M Dec 2016
The TCW Group, Inc. 1.08M $132.56M Dec 2016
Thrivent Financial for Lutherans 1.04M $126.98M Dec 2016
Legal & General Group Plc 963780 $117.92M Dec 2016
Sachem Head Capital Management 935000 $114.40M Dec 2016
AXA 925384 $113.22M Dec 2016
Janus Capital Management LLC 919413 $112.47M Dec 2016
UBS GLOBAL ASSET MANAGEMENT AMERICAS 883694 $108.13M Dec 2016
Hambrecht & Quist Capital Management LLC 795905 $97.38M Dec 2016
Alyeska Investment Group, L.P. 787493 $96.35M Dec 2016
PICTET ASSET MANAGEMENT 779311 $95.35M Dec 2016
Eaton Vance Management 769584 $94.16M Dec 2016
Parametric Portfolio Associates 737124 $90.19M Dec 2016
FRED ALGER MANAGEMENT, INC. 734751 $89.90M Dec 2016
Palo Alto Investors, LLC 713742 $87.33M Dec 2016
Legg Mason Capital Management, Inc. 689877 $84.41M Dec 2016
BlackRock 667724 $81.70M Dec 2016
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 651387 $79.70M Dec 2016
Charles Schwab Investment Management, Inc. 640458 $78.36M Dec 2016
Swiss National Bank 624541 $76.41M Dec 2016
Sumitomo Mitsui Trust Holdings, Inc. 619868 $75.84M Dec 2016
OTR - Nominee Name for The State Teachers Retirement Board of Ohio 604653 $73.98M Dec 2016
New York State Common Retirement Fund 580329 $71.00M Dec 2016
Federated Investors 578180 $70.75M Dec 2016
Deutsche Bank Aktiengesellschaft 577892 $70.70M Dec 2016
Artal Group S.A. 550000 $67.29M Dec 2016
Paulson & Co. Inc. 506341 $61.95M Dec 2016
Overland Advisors 500000 $61.17M Dec 2016
Credit Suisse AG 482825 $59.07M Dec 2016
Barclays PLC 473980 $57.99M Dec 2016
Rock Springs Capital Management 465000 $56.89M Dec 2016
Polar Capital LLP 461150 $56.42M Dec 2016
CalPERS 456991 $55.91M Dec 2016
California State Teachers Retirement System 452124 $55.32M Dec 2016
Mitsubishi UFJ Trust & Banking Corp 446195 $54.59M Dec 2016
Balyasny Asset Management 440400 $53.88M Dec 2016
Cutler 431920 $52.84M Dec 2016
Teachers Advisors 410088 $50.17M Dec 2016
Alkeon Capital Management, LLC 404202 $49.45M Dec 2016
Zevenbergen Capital Investments LLC 402360 $49.23M Dec 2016
Guggenheim Capital, LLC Managers 402246 $49.21M Dec 2016
Eton Park Capital Management, L.P. 402000 $49.18M Dec 2016
Senator Investment Group LP 400000 $48.94M Dec 2016
Point72 Asset Management 398200 $48.72M Dec 2016
DIAM Co., Ltd. 382936 $46.89M Dec 2016
RHUMBLINE ADVISERS 376594 $46.08M Dec 2016
NEW YORK STATE TEACHERS RETIREMENT SYSTEM 366593 $44.85M Dec 2016
TD Asset Management Inc. 362324 $44.33M Dec 2016
SEI INVESTMENTS 342705 $3.38M Dec 2016
Korea Investment Corporation 340585 $41.67M Dec 2016
Principal Financial Group, Inc. 326273 $39.92M Dec 2016
Florida State Board of Administration 321463 $39.33M Dec 2016
York Capital Management Global Advisors, LLC 321409 $39.32M Dec 2016
DIMENSIONAL FUND ADVISORS 307780 $37.66M Dec 2016
PRUDENTIAL FINANCIAL 306984 $37.56M Dec 2016
BlackRock Japan 299847 $36.69M Dec 2016
AMF Pensionsforsakring AB 282406 $34.55M Dec 2016
MORGAN STANLEY 276183 $33.80M Dec 2016
First Trust Advisors L.P. 269222 $32.94M Dec 2016
JANE STREET 267152 $32.69M Dec 2016
Adage Capital Partners GP, L.L.C. 265002 $32.42M Dec 2016
HealthCor Management, L.P. 261140 $31.95M Dec 2016
Citigroup Inc. 255110 $31.21M Dec 2016
APG All Pensions Group NV 254583 $29.53M Dec 2016
STATE TREASURER STATE OF MICHIGAN 253378 $31.00M Dec 2016
Allianz Asset Management AG 247319 $30.26M Dec 2016
Honeywell International Inc. 245700 $30.06M Dec 2016
THE CYPRESS FUNDS LLC 243000 $29.73M Dec 2016
The Manufacturers Life Insurance Company 233704 $28.59M Dec 2016
Millennium Management LLC 229311 $28.06M Dec 2016
Nationwide Fund Advisors 227279 $27.81M Dec 2016
EULAV Asset Management 221000 $27.04M Dec 2016
CITADEL ADVISORS LLC 216248 $26.46M Dec 2016
The Great-West Life Assurance Company 215873 $26.56M Dec 2016
BANK OF MONTREAL /CAN/ 212116 $26.30M Dec 2016
VAN ECK ASSOCIATES CORP. 204643 $25.04M Dec 2016
ProShare Advisors LLC 195782 $23.95M Dec 2016
Candriam Luxembourg S.C.A. 193600 $23.69M Dec 2016
Chevy Chase Trust Holdings, Inc. 188821 $23.12M Dec 2016
Frank Russell Company 187099 $26.06M Mar 2016
Royal Bank of Canada 182977 $22.39M Dec 2016
AVIVA 172490 $21.11M Dec 2016
venBio Select Advisor 170000 $20.80M Dec 2016
Retirement Systems of Alabama 169496 $20.74M Dec 2016
United Services Automobile Association 169002 $20.68M Dec 2016
Raymond James & Associates 168467 $20.61M Dec 2016
Gateway Investment Advisers, LLC 166404 $20.36M Dec 2016
National Pension Service 165686 $20.27M Dec 2016
EcoR1 Capital 162200 $19.85M Dec 2016
Loomis, Sayles and 162054 $19.83M Dec 2016
Lagoda Investment Management 161202 $19.72M Dec 2016
UBS Group AG 159574 $19.52M Dec 2016
VICTORY CAPITAL MANAGEMENT 156464 $19.14M Dec 2016
Cornerstone Capital Management, Inc. 153765 $18.84M Sep 2016
RidgeWorth Capital Management 151785 $18.57M Dec 2016
British Columbia Investment Management Corporation 151273 $18.51M Dec 2016
OHIO PERS 148527 $19.43M Dec 2016
PEAK6 Investments, L.P. 146200 $17.89M Dec 2016
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 137588 $16.84M Dec 2016
Partner Fund Management, L.P. 133605 $16.35M Dec 2016
HSBC HOLDINGS PLC 124459 $15.24M Dec 2016
EverPoint Asset Management 124000 $15.17M Dec 2016
Metropolitan Life Insurance Company 120599 $14.76M Dec 2016
BOSTON ADVISORS,LLC 120081 $14.69M Dec 2016
Thomas Stevens, CFA" 117597 $14.39M Dec 2016
PEREGRINE CAPITAL MANAGEMENT 116847 $14.30M Dec 2016
Ghost Tree Capital 115000 $14.07M Dec 2016
ProFund Advisors LLC 113148 $13.84M Dec 2016
SPHERA FUNDS MANAGEMENT 113000 $13.83M Dec 2016
Emerald Acquisition 111421 $13.65M Sep 2016
State of Wisconsin Investment Board 110819 $13.56M Dec 2016
OppenheimerFunds, Inc. 106115 $12.98M Dec 2016
BNP PARIBAS INVESTMENT PARTNERS S.A. 105149 $12.86M Dec 2016

Who sold Alexion Pharmaceuticals?

Fund Name Date Sold Shares Held Valued At
ROYAL LONDON ASSET MANAGEMENT March 31, 2016 7.64M $76380
Two Sigma Advisers, LLC Sept. 30, 2016 525097 $64.35M
Marshall Wace Sept. 30, 2016 427694 $52.41M
Two Sigma Investments, LLC Sept. 30, 2016 394550 $48.35M
Mizuho Trust & Banking Co., Ltd. Sept. 30, 2016 356327 $43.66M
CALAMOS ADVISORS LLC Sept. 30, 2016 277576 $34.01M
STIFEL FINANCIAL Sept. 30, 2016 201741 $24.72M