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

Institutional Holders (2016Q3)
Portfolio Summary: 1,054 Institutional holders with a total value of $61,879,448,592.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRIMECAP MANAGEMENT CO/CA/ 15,693,905 4,912,663,000 7.94%
2 VANGUARD GROUP INC 13,846,056 4,334,231,000 7.00%
3 FMR LLC 9,718,551 3,042,197,000 4.92%
4 Clearbridge Investments, LLC 8,467,583 2,650,608,000 4.28%
5 PRICE T ROWE ASSOCIATES INC /MD/ 7,610,028 2,382,167,000 3.85%
6 STATE STREET CORP 6,681,918 2,091,647,000 3.38%
7 BlackRock Institutional Trust Company, N.A. 5,866,368 1,836,349,000 2.97%
8 BlackRock Fund Advisors 4,969,337 1,555,552,000 2.51%
9 WELLINGTON MANAGEMENT GROUP LLP 4,537,579 1,420,398,000 2.30%
10 Invesco Ltd. 4,218,006 1,320,364,000 2.13%
11 JPMORGAN CHASE & CO 3,614,472 1,131,478,000 1.83%
12 AMERIPRISE FINANCIAL INC 3,524,954 1,103,419,000 1.78%
13 NORTHERN TRUST CORP 2,978,479 932,354,000 1.51%
14 ALLIANCEBERNSTEIN L.P. 2,798,362 875,971,000 1.42%
15 SANDS CAPITAL MANAGEMENT, LLC 2,789,266 873,124,000 1.41%
16 JENNISON ASSOCIATES LLC 2,614,383 818,380,000 1.32%
17 Jackson Square Partners, LLC 2,572,589 805,297,000 1.30%
18 VIKING GLOBAL INVESTORS LP 2,186,336 684,389,000 1.11%
19 Bank of New York Mellon Corp 2,182,350 683,141,000 1.10%
20 GEODE CAPITAL MANAGEMENT, LLC 2,123,915 663,908,000 1.07%
21 BlackRock Group LTD 2,026,141 634,244,000 1.02%
22 NORGES BANK 2,046,202 611,769,000 0.99%
23 FRANKLIN RESOURCES INC 1,900,080 594,733,000 0.96%
24 BANK OF AMERICA CORP /DE/ 1,839,934 575,954,000 0.93%
25 DEUTSCHE BANK AG\ 1,741,356 545,088,000 0.88%
26 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,705,400 533,841,000 0.86% Put
27 D. E. Shaw & Co., Inc. 1,611,384 504,412,000 0.82%
28 TIAA CREF INVESTMENT MANAGEMENT LLC 1,549,298 484,977,000 0.78%
29 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 1,529,045 478,636,000 0.77%
30 ORBIMED ADVISORS LLC 1,333,900 417,551,000 0.67%
31 OppenheimerFunds, Inc. 1,330,963 416,631,000 0.67%
32 BLACKROCK ADVISORS LLC 1,190,500 372,662,000 0.60%
33 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,164,500 364,523,000 0.59% Call
34 GOLDMAN SACHS GROUP INC 1,157,333 362,281,000 0.59%
35 WELLS FARGO & COMPANY/MN 1,085,887 339,914,000 0.55%
36 AMERICAN CENTURY COMPANIES INC 1,036,681 324,512,000 0.52%
37 MORGAN STANLEY 1,016,194 318,100,000 0.51%
38 Legal & General Group Plc 997,440 312,218,000 0.50%
39 BlackRock Investment Management, LLC 948,888 297,030,000 0.48%
40 PARAMETRIC PORTFOLIO ASSOCIATES LLC 868,870 271,982,000 0.44%
41 VOYA INVESTMENT MANAGEMENT LLC 822,686 257,525,000 0.42%
42 CITADEL ADVISORS LLC 807,540 252,784,000 0.41%
43 MACQUARIE GROUP LTD 792,120 247,957,000 0.40%
44 PRUDENTIAL FINANCIAL INC 788,583 246,850,000 0.40%
45 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 745,442 233,108,000 0.38%
46 CREDIT SUISSE AG/ 740,245 231,718,000 0.37%
47 PUTNAM INVESTMENTS LLC 725,053 226,963,000 0.37%
48 AQR CAPITAL MANAGEMENT LLC 722,604 226,197,000 0.37%
49 MANUFACTURERS LIFE INSURANCE COMPANY, THE 710,569 222,430,000 0.36%
50 Allianz Asset Management GmbH 700,826 218,447,000 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.