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ALEXION PHARMACEUTICALS INC
ALEXION PHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2017Q2)
Portfolio Summary: 611 Institutional holders with a total value of $26,914,209,971.
#
Manager Name
Shares
Value ($)
%
Options
Notes
101 Neuberger Berman Group LLC 272,363 33,138,000 0.12%
102 STATE OF WISCONSIN INVESTMENT BOARD 265,316 32,281,000 0.12%
103 MANUFACTURERS LIFE INSURANCE COMPANY, THE 247,248 30,082,000 0.11%
104 Candriam S.C.A. 222,098 27,024,000 0.10%
105 SPOT TRADING LLC /BD 220,400 26,816,000 0.10% Put
106 RENAISSANCE TECHNOLOGIES LLC 212,300 25,831,000 0.10%
107 BRIDGER MANAGEMENT, LLC 206,006 25,065,000 0.09%
108 ProShare Advisors LLC 205,165 24,962,000 0.09%
109 CITIGROUP INC 204,300 24,857,000 0.09% Put
110 PAULSON & CO. INC. 200,000 24,334,000 0.09% Call
111 Camber Capital Management LP 200,000 24,334,000 0.09%
112 Point72 Asset Management, L.P. 200,000 24,334,000 0.09% Call
113 National Pension Service 196,684 24,080,000 0.09%
114 NOMURA HOLDINGS INC 195,532 23,803,000 0.09%
115 FACTORY MUTUAL INSURANCE CO 194,400 23,653,000 0.09%
116 Chevy Chase Trust Holdings, LLC 193,696 23,567,000 0.09%
117 Nationwide Fund Advisors 189,820 23,095,000 0.09%
118 HONEYWELL INTERNATIONAL INC 189,300 23,032,000 0.09%
119 BALYASNY ASSET MANAGEMENT L.P. 188,230 22,902,000 0.09%
120 AVIVA PLC 186,865 22,738,000 0.08%
121 State of New Jersey Common Pension Fund D 180,000 21,901,000 0.08%
122 HSBC HOLDINGS PLC 178,841 21,759,000 0.08%
123 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 177,622 21,611,000 0.08%
124 ARDSLEY ADVISORY PARTNERS LP 176,500 21,474,000 0.08%
125 CADIAN CAPITAL MANAGEMENT, LP 175,000 21,292,000 0.08%
126 FIRST QUADRANT LLC/CA 171,446 20,860,000 0.08%
127 Retirement Systems of Alabama 168,979 20,560,000 0.08%
128 LOOMIS SAYLES & CO L P 165,552 20,143,000 0.07%
129 Polar Capital LLP 164,712 20,041,000 0.07%
130 BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 163,641 19,910,000 0.07%
131 CANADA LIFE ASSURANCE Co 160,902 19,556,000 0.07%
132 CITIGROUP INC 159,200 19,369,000 0.07% Call
133 BOSTON ADVISORS LLC 154,741 18,827,000 0.07%
134 GATEWAY INVESTMENT ADVISERS LLC 154,531 18,802,000 0.07%
135 Rhenman & Partners Asset Management AB 154,000 18,737,000 0.07%
136 CITADEL ADVISORS LLC 153,300 18,652,000 0.07% Put
137 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 151,163 18,392,000 0.07%
138 TWO SIGMA INVESTMENTS, LP 150,801 18,348,000 0.07%
139 FRED ALGER MANAGEMENT, LLC 148,697 18,092,000 0.07%
140 GOLDMAN SACHS GROUP INC 148,100 18,019,000 0.07% Call
141 SKANDINAVISKA ENSKILDA BANKEN AB (PUBL) 142,971 17,395,000 0.06%
142 Capital Research Global Investors 142,195 17,301,000 0.06%
143 CITIGROUP INC 141,995 17,276,000 0.06%
144 CLOUGH CAPITAL PARTNERS L P 141,859 17,260,000 0.06%
145 VIRTUS CAPITAL ADVISERS, LLC 134,656 16,571,000 0.06%
146 COMMERZBANK AKTIENGESELLSCHAFT /FI 132,698 16,145,000 0.06%
147 GROUP ONE TRADING LLC 132,640 16,138,000 0.06%
148 MACQUARIE GROUP LTD 131,994 16,060,000 0.06%
149 HIGHBRIDGE CAPITAL MANAGEMENT LLC 128,841 15,676,000 0.06%
150 NOMURA HOLDINGS INC 127,900 15,570,000 0.06% Put
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.