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

Institutional Holders (2014Q2)
Portfolio Summary: 802 Institutional holders with a total value of $69,124,057,799.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 21,144,772 6,667,159,000 9.65%
2 PRIMECAP MANAGEMENT CO/CA/ 17,258,311 5,441,718,000 7.87%
3 PRICE T ROWE ASSOCIATES INC /MD/ 12,194,641 3,845,092,000 5.56%
4 VANGUARD GROUP INC 12,086,297 3,810,930,000 5.51%
5 STATE STREET CORP 9,638,717 3,039,183,000 4.40%
6 Capital Research Global Investors 8,198,550 2,585,085,000 3.74%
7 Clearbridge Investments, LLC 7,893,874 2,489,018,000 3.60%
8 JPMORGAN CHASE & CO 7,115,053 2,243,447,000 3.25%
9 JENNISON ASSOCIATES LLC 6,280,884 1,980,426,000 2.87%
10 BlackRock Institutional Trust Company, N.A. 6,271,789 1,977,558,000 2.86%
11 SANDS CAPITAL MANAGEMENT, LLC 4,891,463 1,542,327,000 2.23%
12 Invesco Ltd. 3,827,167 1,206,744,000 1.75%
13 BlackRock Fund Advisors 3,762,809 1,186,451,000 1.72%
14 Bank of New York Mellon Corp 3,210,800 1,012,396,000 1.46%
15 NORTHERN TRUST CORP 3,148,622 992,791,000 1.44%
16 WADDELL & REED FINANCIAL INC 2,880,524 908,258,000 1.31%
17 TIAA CREF INVESTMENT MANAGEMENT LLC 2,644,328 833,783,000 1.21%
18 AMERIPRISE FINANCIAL INC 2,581,552 813,987,000 1.18%
19 WELLS FARGO & COMPANY/MN 2,506,052 790,210,000 1.14%
20 JANUS HENDERSON INVESTORS US LLC 2,306,651 726,354,000 1.05%
21 FRANKLIN RESOURCES INC 2,281,298 719,308,000 1.04%
22 BlackRock Group LTD 2,171,989 684,850,000 0.99%
23 MARSICO CAPITAL MANAGEMENT LLC 1,927,066 607,624,000 0.88%
24 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 1,870,618 589,825,000 0.85%
25 ALLIANCEBERNSTEIN L.P. 1,815,868 572,561,000 0.83%
26 WELLINGTON MANAGEMENT GROUP LLP 1,801,125 567,912,000 0.82%
27 BLACKROCK ADVISORS LLC 1,799,866 567,516,000 0.82%
28 GEODE CAPITAL MANAGEMENT, LLC 1,797,312 566,384,000 0.82%
29 NORGES BANK 1,654,768 521,765,000 0.75%
30 Winslow Capital Management, LLC 1,584,708 499,674,000 0.72%
31 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 1,575,449 496,754,000 0.72%
32 OppenheimerFunds, Inc. 1,469,890 463,471,000 0.67%
33 AMERICAN CENTURY COMPANIES INC 1,400,653 441,640,000 0.64%
34 GOLDMAN SACHS GROUP INC 1,398,474 440,954,000 0.64%
35 MONTAG & CALDWELL, LLC 1,357,696 428,096,000 0.62%
36 COLUMBUS CIRCLE INVESTORS 1,346,860 424,678,000 0.61%
37 BlackRock Investment Management, LLC 1,162,426 366,525,000 0.53%
38 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,131,400 356,742,000 0.52% Put
39 ORBIMED ADVISORS LLC 1,084,200 341,859,000 0.49%
40 MANAGED ACCOUNT ADVISORS LLC 1,072,105 338,045,000 0.49%
41 Allianz Asset Management GmbH 1,058,286 333,689,000 0.48%
42 Legal & General Group Plc 1,000,171 315,364,000 0.46%
43 DEUTSCHE BANK AG\ 968,719 305,443,000 0.44%
44 MORGAN STANLEY 936,791 295,378,000 0.43%
45 PRUDENTIAL FINANCIAL INC 914,122 288,232,000 0.42%
46 Grantham, Mayo, Van Otterloo & Co. LLC 857,799 270,473,000 0.39%
47 BANK OF AMERICA CORP /DE/ 799,656 252,138,000 0.36%
48 AQR CAPITAL MANAGEMENT LLC 791,724 249,638,000 0.36%
49 NEW YORK STATE COMMON RETIREMENT FUND 790,009 249,098,000 0.36%
50 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 783,057 246,906,000 0.36%
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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.