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BIOGEN IDEC INC
BIOGEN IDEC INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q3)
Portfolio Summary: 934 Institutional holders with a total value of $60,632,357,398.
#
Manager Name
Shares
Value ($)
%
Options
Notes
51 DISCOVERY CAPITAL MANAGEMENT, LLC / CT 697,880 203,648,000 0.34%
52 BANK OF AMERICA CORP /DE/ 684,200 199,656,000 0.33% Put
53 NEW YORK STATE COMMON RETIREMENT FUND 676,332 197,360,000 0.33%
54 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 661,733 193,101,000 0.32%
55 PARAMETRIC PORTFOLIO ASSOCIATES LLC 659,404 192,421,000 0.32%
56 CREDIT SUISSE AG/ 638,062 186,193,000 0.31%
57 SECTORAL ASSET MANAGEMENT INC 625,096 182,409,000 0.30%
58 MILLENNIUM MANAGEMENT LLC 624,834 182,333,000 0.30%
59 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 610,699 178,208,000 0.29%
60 BARCLAYS PLC 609,600 177,393,000 0.29% Put
61 D. E. Shaw & Co., Inc. 598,378 174,613,000 0.29%
62 PUTNAM INVESTMENTS LLC 592,495 172,896,000 0.29%
63 CITADEL ADVISORS LLC 591,889 172,719,000 0.28%
64 VOYA INVESTMENT MANAGEMENT LLC 572,428 167,040,000 0.28%
65 BARCLAYS PLC 550,164 160,098,000 0.26%
66 APG Asset Management N.V. 527,969 154,067,000 0.25%
67 AXA S.A. 519,849 151,697,000 0.25%
68 TEACHERS ADVISORS, LLC 511,094 149,142,000 0.25%
69 FIL Ltd 486,748 142,038,000 0.23%
70 FRED ALGER MANAGEMENT, LLC 468,918 136,835,000 0.23%
71 FEDERATED HERMES, INC. 467,861 136,526,000 0.23%
72 Tekla Capital Management LLC 467,183 136,329,000 0.22%
73 Mitsubishi UFJ Trust & Banking Corp 465,946 135,968,000 0.22%
74 FIRST TRUST ADVISORS LP 458,300 133,737,000 0.22%
75 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 451,091 131,633,000 0.22%
76 GOLDMAN SACHS GROUP INC 442,100 129,009,000 0.21% Call
77 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 428,917 125,162,000 0.21%
78 BARCLAYS PLC 427,400 124,373,000 0.21% Call
79 Swiss National Bank 419,799 122,502,000 0.20%
80 Artal Group S.A. 400,000 116,724,000 0.19% Call
81 DIMENSIONAL FUND ADVISORS LP 398,759 116,328,000 0.19%
82 SCHRODER INVESTMENT MANAGEMENT GROUP 383,729 111,976,000 0.18%
83 ADAGE CAPITAL PARTNERS GP, L.L.C. 382,424 111,595,000 0.18%
84 PRINCIPAL FINANCIAL GROUP INC 371,884 108,520,000 0.18%
85 GUGGENHEIM CAPITAL LLC 367,576 107,263,000 0.18%
86 HSBC HOLDINGS PLC 363,353 105,605,000 0.17%
87 Senator Investment Group LP 350,000 102,134,000 0.17%
88 Mizuho Trust & Banking Co., Ltd. 349,606 102,019,000 0.17%
89 RHUMBLINE ADVISERS 336,887 98,307,000 0.16%
90 EATON VANCE MANAGEMENT 328,788 95,944,000 0.16%
91 Nationwide Fund Advisors 322,581 94,132,000 0.16%
92 CAMBIAR INVESTORS LLC 321,221 93,736,000 0.15%
93 BlackRock Japan Co. Ltd 320,934 93,652,000 0.15%
94 VONTOBEL ASSET MANAGEMENT INC 291,860 90,515,000 0.15%
95 State of New Jersey Common Pension Fund D 308,485 90,019,000 0.15%
96 GOLDMAN SACHS GROUP INC 305,900 89,265,000 0.15% Put
97 PICTET ASSET MANAGEMENT LTD 304,203 88,770,000 0.15%
98 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 298,680 87,158,000 0.14%
99 TWO SIGMA ADVISERS, LP 286,596 83,635,000 0.14%
100 ATLANTA CAPITAL MANAGEMENT CO L L C 285,891 83,426,000 0.14%
Page 2 of 19

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.