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BIOGEN INC
BIOGEN 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
101 STRS OHIO 282,350 82,392,000 0.14%
102 BNP PARIBAS FINANCIAL MARKETS 272,627 79,555,284 0.13%
103 Assured Investment Management LLC 269,820 78,736,000 0.13%
104 ProShare Advisors LLC 256,350 74,805,000 0.12%
105 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 242,177 70,670,000 0.12%
106 TEACHER RETIREMENT SYSTEM OF TEXAS 232,574 67,867,000 0.11%
107 ROYAL BANK OF CANADA 231,529 67,562,000 0.11%
108 BNP Paribas Asset Management Holding S.A. 229,065 66,843,000 0.11%
109 D. E. Shaw & Co., Inc. 226,500 66,094,000 0.11% Put
110 Visium Asset Management, LP 222,802 65,016,000 0.11%
111 Retirement Systems of Alabama 222,768 65,006,000 0.11%
112 Artisan Partners Limited Partnership 222,326 64,877,000 0.11%
113 STATE OF WISCONSIN INVESTMENT BOARD 220,265 64,276,000 0.11%
114 MONTAG & CALDWELL, LLC 215,426 62,863,000 0.10%
115 PEAK6 Group LLC 215,100 62,768,000 0.10% Put
116 BALYASNY ASSET MANAGEMENT L.P. 212,801 62,097,000 0.10%
117 Candriam S.C.A. 212,736 62,081,000 0.10%
118 RAYMOND JAMES & ASSOCIATES 211,168 61,621,000 0.10%
119 TD ASSET MANAGEMENT INC 210,620 61,461,000 0.10%
120 AMF Tjanstepension AB 206,889 60,372,000 0.10%
121 CITIGROUP INC 204,500 59,675,000 0.10% Call
122 DF DENT & CO INC 203,501 59,384,000 0.10%
123 UBS Group AG 200,042 58,375,000 0.10%
124 Chevy Chase Trust Holdings, LLC 193,789 56,550,000 0.09%
125 Swedbank 189,260 55,228,000 0.09%
126 Korea Investment CORP 188,712 55,068,000 0.09%
127 SAMLYN CAPITAL, LLC 183,600 53,576,000 0.09%
128 Paloma Partners Management Co 183,500 53,547,000 0.09% Put
129 PANAGORA ASSET MANAGEMENT INC 183,138 53,441,000 0.09%
130 PROFUND ADVISORS LLC 180,848 52,773,000 0.09%
131 Grantham, Mayo, Van Otterloo & Co. LLC 179,221 52,298,000 0.09%
132 UNITED SERVICES AUTOMOBILE ASSOCIATION 179,059 52,251,000 0.09%
133 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 174,484 50,916,000 0.08%
134 1832 Asset Management L.P. 172,340 50,478,000 0.08%
135 CREDIT AGRICOLE S A 172,770 50,419,000 0.08%
136 GATEWAY INVESTMENT ADVISERS LLC 167,301 48,820,000 0.08%
137 VAN ECK ASSOCIATES CORP 166,487 48,583,000 0.08%
138 DekaBank Deutsche Girozentrale 167,161 47,471,000 0.08%
139 CANADA LIFE ASSURANCE Co 158,768 46,287,000 0.08%
140 TORONTO DOMINION BANK 157,788 46,045,000 0.08%
141 Robeco Institutional Asset Management B.V. 156,728 45,735,000 0.08%
142 BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 156,107 45,554,000 0.08%
143 STIFEL FINANCIAL CORP 151,672 44,257,000 0.07%
144 CITIGROUP INC 149,900 43,743,000 0.07% Put
145 CONGRESS ASSET MANAGEMENT CO 138,295 40,356,000 0.07%
146 COMMERZBANK AKTIENGESELLSCHAFT /FI 138,054 40,286,000 0.07%
147 METROPOLITAN LIFE INSURANCE CO/NY 136,838 39,931,000 0.07%
148 RUSSELL FRANK CO/ 136,099 39,688,000 0.07%
149 AMP Capital Investors Ltd 140,094 38,978,000 0.06%
150 WESTPAC BANKING CORP 130,929 38,173,248 0.06%
Page 3 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.