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

Institutional Holders (2016Q3)
Portfolio Summary: 545 Institutional holders with a total value of $26,443,757,817.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 24,829,781 3,042,641,000 11.51%
2 PRICE T ROWE ASSOCIATES INC /MD/ 19,364,434 2,372,918,000 8.97%
3 Capital Research Global Investors 15,305,131 1,875,491,000 7.09%
4 VANGUARD GROUP INC 13,736,543 1,683,276,000 6.37%
5 STATE STREET CORP 7,642,381 936,507,000 3.54%
6 JENNISON ASSOCIATES LLC 7,137,235 874,597,000 3.31%
7 BAKER BROS. ADVISORS LP 6,543,295 801,815,000 3.03%
8 BlackRock Institutional Trust Company, N.A. 5,971,101 731,699,000 2.77%
9 JPMORGAN CHASE & CO 5,640,509 691,225,000 2.61%
10 SANDS CAPITAL MANAGEMENT, LLC 5,245,752 642,814,000 2.43%
11 BlackRock Fund Advisors 5,147,286 630,748,000 2.39%
12 AMERIPRISE FINANCIAL INC 4,710,707 577,251,000 2.18%
13 BROWN ADVISORY INC 3,872,766 474,569,000 1.79%
14 WELLS FARGO & COMPANY/MN 3,425,040 419,703,000 1.59%
15 Invesco Ltd. 3,089,518 378,589,000 1.43%
16 ALLIANCEBERNSTEIN L.P. 2,894,420 354,682,000 1.34%
17 ORBIMED ADVISORS LLC 2,638,011 323,262,000 1.22%
18 NORTHERN TRUST CORP 2,593,437 317,799,000 1.20%
19 TIAA CREF INVESTMENT MANAGEMENT LLC 2,474,986 303,285,000 1.15%
20 WADDELL & REED FINANCIAL INC 2,464,979 302,058,000 1.14%
21 BLACKROCK ADVISORS LLC 2,286,891 280,236,000 1.06%
22 BlackRock Investment Management, LLC 2,243,677 274,940,000 1.04%
23 GOLDMAN SACHS GROUP INC 2,065,672 253,127,000 0.96%
24 BlackRock Group LTD 2,031,472 248,936,000 0.94%
25 BANK OF AMERICA CORP /DE/ 1,855,780 227,408,000 0.86%
26 Bank of New York Mellon Corp 1,852,708 227,030,000 0.86%
27 GEODE CAPITAL MANAGEMENT, LLC 1,847,816 226,053,000 0.85%
28 NORGES BANK 1,872,449 219,149,000 0.83%
29 Clearbridge Investments, LLC 1,690,111 207,106,000 0.78%
30 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 1,669,191 204,543,000 0.77%
31 AMERICAN CENTURY COMPANIES INC 1,410,091 172,793,000 0.65%
32 Temasek Holdings (Private) Ltd 1,226,630 150,311,000 0.57%
33 BB BIOTECH AG 1,179,428 144,527,000 0.55%
34 DSM CAPITAL PARTNERS LLC 1,165,627 142,836,000 0.54%
35 TCW GROUP INC 1,123,825 137,714,000 0.52%
36 MILLENNIUM MANAGEMENT LLC 1,004,398 123,079,000 0.47%
37 Legal & General Group Plc 951,867 116,639,000 0.44%
38 THRIVENT FINANCIAL FOR LUTHERANS 907,930 111,257,000 0.42%
39 AXA S.A. 901,395 110,457,000 0.42%
40 JANUS HENDERSON INVESTORS US LLC 854,147 104,668,000 0.40%
41 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 772,545 94,667,000 0.36%
42 Tekla Capital Management LLC 764,005 93,621,000 0.35%
43 PICTET ASSET MANAGEMENT LTD 740,008 90,681,000 0.34%
44 DEUTSCHE BANK AG\ 723,082 88,600,000 0.34%
45 FRANKLIN RESOURCES INC 705,700 86,476,000 0.33%
46 CLEARBRIDGE, LLC 689,569 84,500,000 0.32%
47 PARAMETRIC PORTFOLIO ASSOCIATES LLC 666,541 81,678,000 0.31%
48 HealthCor Management, L.P. 650,000 79,651,000 0.30%
49 BlackRock Finance, Inc. 649,282 79,563,000 0.30%
50 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 627,727 76,922,000 0.29%
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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.