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

Institutional Holders (2015Q2)
Portfolio Summary: 980 Institutional holders with a total value of $87,219,666,325.
#
Manager Name
Shares
Value ($)
%
Options
Notes
201 PUBLIC SECTOR PENSION INVESTMENT BOARD 80,930 32,691,000 0.04%
202 Origin Asset Management LLP 80,392 32,474,000 0.04%
203 Redmile Group, LLC 79,118 31,959,000 0.04%
204 CLOUGH CAPITAL PARTNERS L P 78,386 31,663,000 0.04%
205 PICTON MAHONEY ASSET MANAGEMENT 77,600 31,345,000 0.04% SH
206 NAVELLIER & ASSOCIATES INC 75,833 30,632,000 0.04%
207 Arvest Bank Trust Division 74,825 30,225,000 0.03%
208 VIRGINIA RETIREMENT SYSTEMS ET Al 74,592 30,131,000 0.03%
209 I.G. INVESTMENT MANAGEMENT, LTD. 72,827 29,418,000 0.03%
210 BELLEVUE ASSET MANAGEMENT AG 72,760 29,391,000 0.03%
211 AJO, LP 72,600 29,326,000 0.03%
212 M&T BANK CORP 71,747 28,982,000 0.03%
213 CASTLEARK MANAGEMENT LLC 71,130 28,732,000 0.03%
214 GLENMEDE TRUST CO NA 70,819 28,605,000 0.03%
215 ASCEND CAPITAL, LLC 69,184 27,945,000 0.03%
216 MCKINLEY CAPITAL MANAGEMENT LLC 68,211 27,553,000 0.03%
217 Gulf International Bank (UK) Ltd 68,091 27,505,000 0.03%
218 ICON ADVISERS INC/CO 66,570 26,890,000 0.03%
219 Euclid Advisors LLC 66,470 26,850,000 0.03%
220 Mitsubishi UFJ Asset Management Co., Ltd. 65,697 26,538,000 0.03%
221 Zurcher Kantonalbank (Zurich Cantonalbank) 62,719 25,335,000 0.03%
222 LORD, ABBETT & CO. LLC 62,331 25,178,000 0.03%
223 QS Investors, LLC 62,203 25,126,000 0.03%
224 VIRTUS CAPITAL ADVISERS, LLC 62,201 25,125,000 0.03%
225 PEAK6 Group LLC 62,000 25,044,000 0.03% Put
226 HARTFORD INVESTMENT MANAGEMENT CO 61,013 24,646,000 0.03%
227 SPHERA FUNDS MANAGEMENT LTD. 60,730 24,531,000 0.03%
228 ING GROEP NV 60,397 24,398,000 0.03%
229 US BANCORP \DE\ 59,854 24,177,000 0.03%
230 EDMOND DE ROTHSCHILD HOLDING S.A. 59,500 24,034,000 0.03%
231 EDMOND DE ROTHSCHILD ASSET MANAGEMENT (FRANCE) 59,180 23,905,000 0.03%
232 PDT Partners, LLC 57,865 23,374,000 0.03%
233 BRAUN STACEY ASSOCIATES INC 57,648 23,287,000 0.03%
234 IBM Retirement Fund 57,456 23,209,000 0.03%
235 ENVESTNET ASSET MANAGEMENT INC 57,046 23,043,000 0.03%
236 HBK INVESTMENTS L P 55,921 22,589,000 0.03%
237 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 54,900 22,185,000 0.03%
238 THORNBURG INVESTMENT MANAGEMENT INC 54,781 22,128,000 0.03%
239 OPPENHEIMER & CO INC 53,608 21,655,000 0.02%
240 RAINIER INVESTMENT MANAGEMENT LLC 52,750 21,308,000 0.02%
241 JACOBS LEVY EQUITY MANAGEMENT, INC 52,508 21,210,000 0.02%
242 EXXONMOBIL INVESTMENT MANAGEMENT INC /TX 52,221 21,094,000 0.02%
243 Carlson Capital, L.P. 51,620 20,851,000 0.02%
244 Rhenman & Partners Asset Management AB 50,291 20,315,000 0.02%
245 CADIAN CAPITAL MANAGEMENT, LP 50,000 20,197,000 0.02%
246 Tourbillon Capital Partners, L.P. 50,000 20,197,000 0.02%
247 FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND 49,749 20,096,000 0.02%
248 Sumitomo Mitsui DS Asset Management Company, Ltd 48,789 19,707,000 0.02%
249 CULLEN/FROST BANKERS, INC. 48,306 19,513,000 0.02%
250 Paloma Partners Management Co 48,100 19,430,000 0.02% 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.