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

Institutional Holders (2017Q2)
Portfolio Summary: 1,029 Institutional holders with a total value of $52,728,752,513.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BlackRock Finance, Inc. 18,107,358 4,913,612,000 9.32%
2 PRIMECAP MANAGEMENT CO/CA/ 15,391,401 4,176,611,000 7.92%
3 VANGUARD GROUP INC 14,534,827 3,944,171,000 7.48%
4 STATE STREET CORP 9,721,312 2,637,973,000 5.00%
5 Clearbridge Investments, LLC 9,293,900 2,521,993,000 4.78%
6 PRICE T ROWE ASSOCIATES INC /MD/ 8,948,782 2,428,341,000 4.61%
7 FMR LLC 6,104,026 1,656,390,000 3.14%
8 WELLINGTON MANAGEMENT GROUP LLP 5,228,480 1,418,801,000 2.69%
9 Invesco Ltd. 3,440,738 933,681,000 1.77%
10 NORTHERN TRUST CORP 3,017,136 818,731,000 1.55%
11 GEODE CAPITAL MANAGEMENT, LLC 2,419,526 655,568,000 1.24%
12 ALLIANCEBERNSTEIN L.P. 2,403,747 652,281,000 1.24%
13 JPMORGAN CHASE & CO 2,276,301 617,696,000 1.17%
14 Jackson Square Partners, LLC 2,057,727 558,384,000 1.06%
15 NORGES BANK 2,014,477 546,648,000 1.04%
16 BANK OF AMERICA CORP /DE/ 2,004,466 543,932,000 1.03%
17 TIAA CREF INVESTMENT MANAGEMENT LLC 1,906,820 517,434,000 0.98%
18 Bank of New York Mellon Corp 1,875,780 509,011,000 0.97%
19 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 1,839,582 499,189,000 0.95%
20 GOLDMAN SACHS GROUP INC 1,733,493 470,401,000 0.89%
21 AMERIPRISE FINANCIAL INC 1,709,010 463,777,000 0.88%
22 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,666,600 452,249,000 0.86% Call
23 DEUTSCHE BANK AG\ 1,665,576 451,965,000 0.86%
24 ORBIMED ADVISORS LLC 1,630,000 442,317,000 0.84%
25 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,550,700 420,798,000 0.80% Put
26 JANUS HENDERSON GROUP PLC 1,445,560 392,265,000 0.74%
27 FRANKLIN RESOURCES INC 1,416,237 384,309,000 0.73%
28 D. E. Shaw & Co., Inc. 1,305,858 354,357,000 0.67%
29 AQR CAPITAL MANAGEMENT LLC 1,304,659 354,032,000 0.67%
30 SANDS CAPITAL MANAGEMENT, LLC 1,278,163 346,842,000 0.66%
31 WELLS FARGO & COMPANY/MN 1,188,575 322,532,000 0.61%
32 AMERICAN CENTURY COMPANIES INC 1,087,357 295,065,000 0.56%
33 MORGAN STANLEY 1,079,277 292,874,000 0.56%
34 Legal & General Group Plc 1,072,719 291,095,000 0.55%
35 CITADEL ADVISORS LLC 1,066,566 289,423,000 0.55%
36 OppenheimerFunds, Inc. 1,025,107 278,172,000 0.53%
37 DZ BANK AG DEUTSCHE ZENTRAL GENOSSENSCHAFTS BANK, FRANKFURT AM MAIN 966,054 262,148,000 0.50%
38 Point72 Asset Management, L.P. 892,101 242,081,000 0.46%
39 VOYA INVESTMENT MANAGEMENT LLC 846,152 229,612,000 0.44%
40 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 829,144 224,996,516 0.43%
41 MANNING & NAPIER ADVISORS LLC 814,369 220,986,000 0.42%
42 PUTNAM INVESTMENTS LLC 810,301 219,883,000 0.42%
43 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 798,469 216,673,000 0.41%
44 Swiss National Bank 788,899 214,076,000 0.41%
45 RENAISSANCE TECHNOLOGIES LLC 762,861 207,010,000 0.39%
46 Winslow Capital Management, LLC 726,394 197,114,000 0.37%
47 PARAMETRIC PORTFOLIO ASSOCIATES LLC 719,122 195,141,000 0.37%
48 SAMLYN CAPITAL, LLC 710,500 192,801,000 0.37%
49 MANUFACTURERS LIFE INSURANCE COMPANY, THE 705,998 191,579,000 0.36%
50 PRUDENTIAL FINANCIAL INC 688,495 186,830,000 0.35%
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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.