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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
301 Ghost Tree Capital, LLC 30,000 12,118,000 0.01%
302 MITCHELL CAPITAL MANAGEMENT CO 29,946 12,096,000 0.01%
303 MONTRUSCO BOLTON INVESTMENTS INC. 29,697 11,996,000 0.01%
304 RS INVESTMENT MANAGEMENT CO LLC 29,507 11,919,000 0.01%
305 SIMPLEX TRADING, LLC 28,956 11,696,000 0.01%
306 WINTON GROUP Ltd 28,951 11,694,000 0.01%
307 CIBC Asset Management Inc 28,480 11,504,000 0.01%
308 WILLIAMS JONES & ASSOCIATES LLC 28,004 11,312,000 0.01%
309 JANE STREET GROUP, LLC 27,900 11,270,000 0.01% Call
310 BOSTON ADVISORS LLC 27,896 11,268,000 0.01%
311 Jefferies Group LLC 27,768 11,217,000 0.01%
312 ZWEIG ADVISERS LLC 27,300 11,028,000 0.01%
313 FIRST NATIONAL BANK OF OMAHA 28,844 10,785,000 0.01%
314 NORDEA INVESTMENT MANAGEMENT AB 26,533 10,718,000 0.01%
315 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 26,415 10,670,000 0.01%
316 SENTRY INVESTMENT MANAGEMENT LLC 26,009 10,506,000 0.01%
317 Quotient Investors, LLC 25,687 10,376,000 0.01%
318 First American Bank 25,281 10,212,000 0.01%
319 Norinchukin Bank, The 25,116 10,145,000 0.01%
320 OAKBROOK INVESTMENTS LLC 24,864 10,044,000 0.01%
321 Sivik Global Healthcare LLC 24,800 10,018,000 0.01%
322 NEW MEXICO EDUCATIONAL RETIREMENT BOARD 24,774 10,007,000 0.01%
323 Glacier Peak Capital LLC 24,500 9,897,000 0.01%
324 TOKIO MARINE ASSET MANAGEMENT CO LTD 24,387 9,851,000 0.01%
325 Airain ltd 24,053 9,716,000 0.01%
326 MARTINGALE ASSET MANAGEMENT L P 23,567 9,520,000 0.01%
327 NatWest Group plc 22,988 9,285,000 0.01%
328 CURIAN CAPITAL LLC 22,931 9,263,000 0.01%
329 OUTFITTER ADVISORS, LTD. 22,806 9,212,000 0.01%
330 RIVERHEAD CAPITAL MANAGEMENT LLC 22,799 9,210,000 0.01%
331 SEGALL BRYANT & HAMILL, LLC 22,663 9,154,000 0.01%
332 Livforsakringsbolaget Skandia, Omsesidigt 22,567 9,116,000 0.01%
333 ARROWGRASS CAPITAL PARTNERS (US) LP 22,500 9,089,000 0.01%
334 TIAA CREF TRUST CO FSB/MO 22,493 9,085,000 0.01%
335 SECURIAN ASSET MANAGEMENT, INC 22,331 9,020,000 0.01%
336 DE BURLO GROUP INC 22,315 9,013,000 0.01%
337 People's United Financial, Inc. 21,843 8,823,000 0.01%
338 J.P. Morgan Private Wealth Advisors LLC 21,521 8,694,000 0.01%
339 UNITED CAPITAL FINANCIAL ADVISORS, LLC 21,381 8,637,000 0.01%
340 BAIRD FINANCIAL GROUP, INC. 21,131 8,536,000 0.01%
341 ARROWGRASS CAPITAL PARTNERS (US) LP 210 8,483,000 0.01% Call
342 MIDDLETON & CO INC/MA 20,944 8,460,000 0.01%
343 Nippon Life Global Investors Americas, Inc. 20,820 8,409,000 0.01%
344 NOMURA HOLDINGS INC 20,738 8,312,000 0.01%
345 Numeric Investors LLC 20,430 8,252,000 0.01%
346 Ameritas Investment Partners, Inc. 20,410 8,244,000 0.01%
347 MERITAGE PORTFOLIO MANAGEMENT 20,378 8,231,000 0.01%
348 Advisors Asset Management, Inc. 20,324 8,210,000 0.01%
349 BANK OF THE WEST 20,093 8,117,000 0.01%
350 TCW GROUP INC 20,000 8,079,000 0.01%
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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.