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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
1 FMR LLC 16,563,800 4,833,482,000 7.97%
2 PRIMECAP MANAGEMENT CO/CA/ 15,843,460 4,623,280,000 7.63%
3 VANGUARD GROUP INC 13,577,534 3,962,059,000 6.53%
4 STATE STREET CORP 9,485,627 2,767,996,000 4.57%
5 Clearbridge Investments, LLC 8,583,624 2,504,787,000 4.13%
6 BlackRock Institutional Trust Company, N.A. 6,110,237 1,783,028,000 2.94%
7 PRICE T ROWE ASSOCIATES INC /MD/ 6,027,086 1,758,764,000 2.90%
8 WELLINGTON MANAGEMENT GROUP LLP 5,662,893 1,652,489,000 2.73%
9 BlackRock Fund Advisors 5,348,252 1,560,673,000 2.57%
10 SANDS CAPITAL MANAGEMENT, LLC 4,121,400 1,202,666,000 1.98%
11 JENNISON ASSOCIATES LLC 4,061,683 1,185,240,000 1.95%
12 JPMORGAN CHASE & CO 3,946,702 1,151,688,000 1.90%
13 AMERIPRISE FINANCIAL INC 3,809,329 1,111,313,000 1.83%
14 Invesco Ltd. 3,434,031 1,002,085,000 1.65%
15 Bank of New York Mellon Corp 3,212,715 937,821,000 1.55%
16 NORTHERN TRUST CORP 3,168,994 924,744,000 1.53%
17 ALLIANCEBERNSTEIN L.P. 2,512,333 733,124,000 1.21%
18 FRANKLIN RESOURCES INC 2,374,911 693,034,000 1.14%
19 BlackRock Group LTD 2,212,262 645,560,000 1.06%
20 SUSQUEHANNA INTERNATIONAL GROUP, LLP 2,176,200 635,037,000 1.05% Put
21 WADDELL & REED FINANCIAL INC 2,154,169 628,608,000 1.04%
22 Jackson Square Partners, LLC 2,014,681 587,904,000 0.97%
23 JANUS HENDERSON INVESTORS US LLC 2,004,800 585,030,000 0.96%
24 NORGES BANK 1,975,930 576,596,000 0.95%
25 TIAA CREF INVESTMENT MANAGEMENT LLC 1,966,288 573,783,000 0.95%
26 GEODE CAPITAL MANAGEMENT, LLC 1,951,867 568,504,000 0.94%
27 GOLDMAN SACHS GROUP INC 1,698,449 495,624,000 0.82%
28 OppenheimerFunds, Inc. 1,682,824 491,064,000 0.81%
29 BLACKROCK ADVISORS LLC 1,558,620 454,821,000 0.75%
30 BANK OF AMERICA CORP /DE/ 1,422,979 415,241,000 0.68%
31 AMERICAN CENTURY COMPANIES INC 1,408,665 411,063,000 0.68%
32 MORGAN STANLEY 1,326,414 387,061,000 0.64%
33 ORBIMED ADVISORS LLC 1,307,400 381,512,000 0.63%
34 WELLS FARGO & COMPANY/MN 1,281,252 373,881,000 0.62%
35 Capital World Investors 1,201,651 350,654,000 0.58%
36 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 1,134,500 331,057,000 0.55%
37 DEUTSCHE BANK AG\ 1,130,067 329,759,000 0.54%
38 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,106,500 322,888,000 0.53% Call
39 BlackRock Investment Management, LLC 1,088,991 317,778,000 0.52%
40 Legal & General Group Plc 984,248 287,207,000 0.47%
41 AQR CAPITAL MANAGEMENT LLC 980,159 286,020,000 0.47%
42 STEADFAST CAPITAL MANAGEMENT LP 952,862 278,055,000 0.46%
43 SUSQUEHANNA INTERNATIONAL GROUP, LLP 900,295 262,715,000 0.43%
44 Allianz Asset Management GmbH 892,671 260,394,000 0.43%
45 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 801,743 233,956,000 0.39%
46 MACQUARIE GROUP LTD 767,617 223,998,000 0.37%
47 MANUFACTURERS LIFE INSURANCE COMPANY, THE 744,947 217,383,000 0.36%
48 BlackRock Finance, Inc. 717,578 209,397,000 0.35%
49 Sumitomo Mitsui Trust Group, Inc. 717,264 209,305,000 0.35%
50 PRUDENTIAL FINANCIAL INC 716,186 208,990,000 0.34%
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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.