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 27.00M $3.27B Mar 2017
T. Rowe Price Associates, Inc. 19.29M $2.34B Mar 2017
The Vanguard Group,Inc 14.47M $1.75B Mar 2017
STATE STREET CORPORATION 11.30M $1.37B Mar 2017
Jennison Associates LLC 9.62M $1.17B Mar 2017
Baker Bros. Advisors, LLC 6.54M $793.41M Mar 2017
Ameriprise Financial, Inc. 6.15M $745.57M Mar 2017
BlackRock Institutional Trust Company, N.A. 6.09M $745.06M Dec 2016
Sands Capital Management 5.59M $683.36M Dec 2016
BlackRock Fund Advisors 5.51M $674.17M Dec 2016
OrbiMed Advisors, LLC 3.76M $455.98M Mar 2017
Invesco Ltd. 3.69M $447.94M Mar 2017
Bank of New York Mellon 3.29M $398.28M Mar 2017
JPMORGAN CHASE & CO 3.07M $372.37M Mar 2017
ClearBridge Advisors, LLC 2.65M $321.14M Mar 2017
NORTHERN TRUST 2.53M $306.90M Mar 2017
Brown Advisory Holdings Incorporated 2.51M $304.16M Mar 2017
ALLIANCEBERNSTEIN, L.P. 2.41M $292.03M Mar 2017
BlackRock Investment Management 2.31M $282.02M Dec 2016
TIAA-CREF Investment Management 2.26M $274.53M Mar 2017
Geode Capital Management, LLC 2.12M $252.97M Mar 2017
Waddell & Reed Financial, Inc. 2.04M $247.82M Mar 2017
BlackRock Group 1.99M $243.16M Dec 2016
Franklin Resources, Inc. 1.96M $237.98M Mar 2017
GOLDMAN SACHS GROUP INC 1.93M $234.37M Mar 2017
BlackRock Advisors 1.75M $214.24M Dec 2016
Bank of America Corporation 1.68M $204.15M Mar 2017
BANK OF MONTREAL /CAN/ 1.42M $173.18M Jun 2017
Eaton Vance Management 1.33M $160.68M Mar 2017
Wells Fargo & Company 1.30M $157.21M Mar 2017
BB Biotech AG 1.23M $149.06M Mar 2017
Temasek Holdings (Private) Limited 1.23M $148.72M Mar 2017
American Century Companies, Inc. 1.21M $146.44M Mar 2017
SUSQUEHANNA INTERNATIONAL 1.06M $128.39M Mar 2017
Palo Alto Investors, LLC 1.03M $124.52M Mar 2017
DSM Capital Partners 1.01M $122.93M Mar 2017
Legal & General Group Plc 1.00M $121.58M Mar 2017
Janus Capital Management LLC 982224 $119.08M Mar 2017
HealthCor Management, L.P. 950000 $115.18M Mar 2017
PUTNAM INVESTMENTS 948121 $114.95M Mar 2017
Tourbillon Capital Partners 892821 $108.25M Mar 2017
UBS GLOBAL ASSET MANAGEMENT AMERICAS 874100 $105.98M Mar 2017
AXA 866071 $105.00M Mar 2017
Millennium Management LLC 860920 $104.38M Mar 2017
PICTET ASSET MANAGEMENT 802866 $97.34M Mar 2017
Hambrecht & Quist Capital Management LLC 795905 $96.50M Mar 2017
Swiss National Bank 794641 $96.34M Mar 2017
Deutsche Bank Aktiengesellschaft 779876 $94.53M Mar 2017
The TCW Group, Inc. 753894 $91.40M Mar 2017
Barclays PLC 753116 $91.32M Mar 2017
Senator Investment Group LP 750000 $90.93M Mar 2017
Thrivent Financial for Lutherans 719710 $87.26M Mar 2017
Charles Schwab Investment Management, Inc. 697913 $84.61M Mar 2017
Legg Mason Capital Management, Inc. 677060 $82.09M Mar 2017
BlackRock 667724 $81.70M Dec 2016
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 644151 $78.10M Mar 2017
Sachem Head Capital Management 635000 $76.99M Mar 2017
HAP Trading 628748 $76.23M Mar 2017
Sumitomo Mitsui Trust Holdings, Inc. 618386 $74.97M Mar 2017
FRED ALGER MANAGEMENT, INC. 614661 $74.52M Mar 2017
MORGAN STANLEY 585482 $70.98M Mar 2017
New York State Common Retirement Fund 577134 $69.97M Mar 2017
Credit Suisse AG 568966 $68.96M Mar 2017
Federated Investors 563984 $68.38M Mar 2017
Marshall Wace North America 539002 $65.22M Mar 2017
MARSHALL WACE ASIA 539002 $65.22M Mar 2017
OTR - Nominee Name for The State Teachers Retirement Board of Ohio 536412 $65.03M Mar 2017
Paulson & Co. Inc. 534200 $64.77M Mar 2017
Cutler 524735 $63.84M Jun 2017
Rock Springs Capital Management 456900 $55.39M Mar 2017
Mitsubishi UFJ Trust & Banking Corp 446293 $54.11M Mar 2017
Two Sigma Investments, LLC 440920 $53.46M Mar 2017
CalPERS 438691 $53.19M Mar 2017
Polar Capital LLP 438234 $53.13M Mar 2017
California State Teachers Retirement System 432224 $52.40M Mar 2017
Guggenheim Capital, LLC Managers 430375 $52.19M Mar 2017
Teachers Advisors 422267 $51.20M Mar 2017
Two Sigma Advisers, LLC 408740 $49.56M Mar 2017
RHUMBLINE ADVISERS 386876 $46.90M Mar 2017
Carlson Capital, L.P. 374500 $45.40M Mar 2017
STATE TREASURER STATE OF MICHIGAN 373778 $45.48M Jun 2017
NEW YORK STATE TEACHERS RETIREMENT SYSTEM 372416 $45.15M Mar 2017
Renaissance Technologies, L.L.C. 360942 $43.76M Mar 2017
TD Asset Management Inc. 360059 $43.65M Mar 2017
Westfield Capital Management Company, L.P. 359212 $43.55M Mar 2017
DIAM Co., Ltd. 351220 $42.60M Mar 2017
Principal Financial Group, Inc. 331410 $40.18M Mar 2017
Parametric Portfolio Associates 328363 $39.81M Mar 2017
Florida State Board of Administration 321598 $38.99M Mar 2017
DIMENSIONAL FUND ADVISORS 321459 $38.97M Mar 2017
PRUDENTIAL FINANCIAL 310128 $37.60M Mar 2017
BlackRock Japan 299847 $36.69M Dec 2016
First Trust Advisors L.P. 286569 $34.74M Mar 2017
AMF Pensionsforsakring AB 282644 $34.27M Jun 2017
TOBAM 273787 $33.19M Mar 2017
THE CYPRESS FUNDS LLC 272000 $32.98M Mar 2017
SEI INVESTMENTS 265194 $32.15M Mar 2017
Canada Pension Plan Investment Board 258930 $31.39M Mar 2017
The Manufacturers Life Insurance Company 244993 $29.71M Mar 2017
VAN ECK ASSOCIATES CORP. 243718 $29.55M Mar 2017
Nationwide Fund Advisors 242098 $29.35M Mar 2017
UBS Group AG 233672 $28.33M Mar 2017
HIGHBRIDGE CAPITAL MANAGEMENT LLC 233363 $28.29M Mar 2017
Adage Capital Partners GP, L.L.C. 231402 $28.06M Mar 2017
EULAV Asset Management 231000 $28.01M Mar 2017
CITADEL ADVISORS LLC 225497 $27.34M Mar 2017
Natixis 224613 $27.23M Mar 2017
Korea Investment Corporation 216552 $26.25M Mar 2017
The Great-West Life Assurance Company 214009 $26.06M Mar 2017
Candriam Luxembourg S.C.A. 209397 $25.39M Mar 2017
State of Tennessee, Treasury Department 206344 $25.02M Mar 2017
Allianz Asset Management AG 205854 $24.96M Mar 2017
British Columbia Investment Management Corporation 203873 $24.72M Mar 2017
Citigroup Inc. 198001 $24.01M Mar 2017
National Pension Service 196684 $24.08M Jun 2017
Factory Mutual Insurance Company 194400 $23.65M Jun 2017
Chevy Chase Trust Holdings, Inc. 193696 $23.58M Jun 2017
Balyasny Asset Management 193159 $23.42M Mar 2017
BNP PARIBAS ARBITRAGE, SNC 189631 $22.99M Mar 2017
Honeywell International Inc. 189300 $22.95M Mar 2017
CIBC WORLD MARKETS 181176 $21.97M Mar 2017
Zevenbergen Capital Investments LLC 180828 $21.92M Mar 2017
State of New Jersey Common Pension Fund D 180000 $21.82M Mar 2017
ProShare Advisors LLC 175067 $21.23M Mar 2017
First Quadrant 171446 $20.86M Jun 2017
BNP PARIBAS INVESTMENT PARTNERS S.A. 168844 $20.47M Mar 2017
Retirement Systems of Alabama 168675 $20.45M Mar 2017
AVIVA 164763 $19.98M Mar 2017
Capital Fund Management S.A. 161928 $19.63M Mar 2017
Point72 Asset Management 159900 $19.39M Mar 2017
Gateway Investment Advisers, LLC 154531 $18.80M Jun 2017
BOSTON ADVISORS,LLC 154396 $18.72M Mar 2017
Rhenman & Partners Asset Management AB 154000 $18.74M Jun 2017
Cornerstone Capital Management, Inc. 153765 $18.84M Sep 2016
Skandinaviska Enskilda Banken AB 153571 $18.62M Mar 2017
RidgeWorth Capital Management 150319 $18.22M Mar 2017
OHIO PERS 148769 $18.04M Mar 2017
Raymond James & Associates 147990 $17.94M Mar 2017
Hudson Bay Capital Management LP 145000 $17.58M Mar 2017
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 144622 $17.53M Mar 2017
KBC Group NV 142306 $17.25M Mar 2017
Capital Research Global Investors^ 141225 $17.12M Mar 2017
State of Wisconsin Investment Board 138296 $16.77M Mar 2017
HSBC HOLDINGS PLC 137460 $16.67M Mar 2017
CLOUGH CAPITAL PARTNERS L P 124700 $15.12M Mar 2017
EverPoint Asset Management 124000 $15.17M Dec 2016
VICTORY CAPITAL MANAGEMENT 123877 $15.02M Mar 2017
Ascend Capital, LLC 123755 $15.00M Mar 2017
Metropolitan Life Insurance Company 119125 $14.44M Mar 2017
Lagoda Investment Management 117945 $14.30M Mar 2017

Who sold Alexion Pharmaceuticals?

Fund Name Date Sold Shares Held Valued At
WINSLOW CAPITAL MANAGEMENT INC /MN Dec. 31, 2016 2.13M $260.78M
Norges Bank Investment Management Dec. 31, 2016 2.09M $256.07M
PointState Capital Dec. 31, 2016 1.11M $135.68M
Manning & Napier Advisors, Inc. March 31, 2017 1.11M $134.04M
Artal Group S.A. Dec. 31, 2016 550000 $67.29M
Overland Advisors Dec. 31, 2016 500000 $61.17M
Alkeon Capital Management, LLC Dec. 31, 2016 404202 $49.45M
Eton Park Capital Management, L.P. Dec. 31, 2016 402000 $49.18M
York Capital Management Global Advisors, LLC Dec. 31, 2016 321409 $39.32M
JANE STREET Dec. 31, 2016 267152 $32.69M

Funds that own ALXN also own: