BIOGEN INC

Country: United States Ticker: BIIB Class: COM CUSIP: 09062X103 CIK: 0000875045

$216.65

as of Aug 31, 2026 -$122.26 (-36.1%)
$95$161$226$292$357Aug 2021Nov 2022Mar 2024May 2025Aug 2026

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue
FMR LLC18,217,239$3.936B
BlackRock, Inc.15,985,736$3.454B
PRIMECAP MANAGEMENT CO/CA/15,154,606$3.274B
VANGUARD CAPITAL MANAGEMENT LLC9,651,117$2.085B
STATE STREET CORP7,344,327$1.587B
VANGUARD PORTFOLIO MANAGEMENT LLC6,604,936$1.427B
GEODE CAPITAL MANAGEMENT, LLC4,449,295$958M
WELLINGTON MANAGEMENT GROUP LLP3,117,469$674M
NORGES BANK2,580,033$557M
MORGAN STANLEY2,411,271$521M
AQR CAPITAL MANAGEMENT LLC1,936,859$417M
JPMORGAN CHASE & CO1,823,140$395M
Invesco Ltd.1,803,944$390M
Amundi1,516,831$328M
Legal & General Group Plc1,493,289$323M
NORTHERN TRUST CORP1,429,490$309M
Boston Partners1,263,429$273M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME1,255,168$271M
GOLDMAN SACHS GROUP INC1,230,390$266M
DIMENSIONAL FUND ADVISORS LP1,148,568$248M
Pacer Advisors, Inc.1,122,981$243M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC1,117,663$241M
BANK OF AMERICA CORP /DE/1,116,228$241M
UBS Group AG1,030,150$223M
Alyeska Investment Group, L.P.932,374$201M
DEUTSCHE BANK AG\894,035$193M
Pictet Asset Management Holding SA851,819$184M
VANGUARD FIDUCIARY TRUST CO829,318$179M
Robeco Institutional Asset Management B.V.791,092$171M
FRED ALGER MANAGEMENT, LLC788,307$170M
PRICE T ROWE ASSOCIATES INC /MD/774,283$167M
Bank of New York Mellon Corp773,619$167M
MASSACHUSETTS FINANCIAL SERVICES CO /MA/744,892$163M
CITIGROUP INC734,517$159M
ROYAL BANK OF CANADA708,562$153M
Employees Provident Fund Board704,196$152M
FIRST TRUST ADVISORS LP682,021$147M
AustralianSuper Pty Ltd672,723$145M
Artemis Investment Management LLP570,974$123M
Zurcher Kantonalbank (Zurich Cantonalbank)540,001$117M
HSBC HOLDINGS PLC527,866$114M
CAISSE DE DEPOT ET PLACEMENT DU QUEBEC510,194$110M
LSV ASSET MANAGEMENT444,049$95.94M
CITADEL ADVISORS LLC418,356$90.39M
Swiss National Bank413,900$89.43M
National Pension Service406,064$87.73M
BNP PARIBAS FINANCIAL MARKETS387,542$83.73M
Candriam S.C.A.384,326$82.96M
Mitsubishi UFJ Asset Management Co., Ltd.358,823$77.53M
Sumitomo Mitsui Trust Group, Inc.346,617$74.89M
VICTORY CAPITAL MANAGEMENT INC343,419$74.2M
FIL Ltd342,623$74.03M
Fisher Asset Management, LLC338,018$73.03M
Vanguard Global Advisers, LLC335,936$72.58M
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM329,106$71.11M
Swedbank AB320,622$69.27M
Nuveen, LLC317,204$68.53M
VANGUARD ASSET MANAGEMENT, Ltd284,376$61.44M
Patient Capital Management, LLC283,697$61.3M
Gotham Asset Management, LLC279,900$60.48M
KBC Group NV278,652$60.2M
CAUSEWAY CAPITAL MANAGEMENT LLC278,283$60.13M
PERCEPTIVE ADVISORS LLC276,173$59.67M
BALYASNY ASSET MANAGEMENT L.P.265,090$57.28M
RHUMBLINE ADVISERS262,979$56.82M
BARCLAYS PLC247,157$53.4M
VOYA INVESTMENT MANAGEMENT LLC246,782$53.32M
AEGON ASSET MANAGEMENT UK PLC241,101$52.09M
BNP Paribas Asset Management Holding S.A.234,138$50.59M
ALLIANCEBERNSTEIN L.P.214,975$39.41M
KLP KAPITALFORVALTNING AS199,177$43.03M
Man Group plc196,222$42.4M
PANAGORA ASSET MANAGEMENT INC186,929$40.39M
NISSAY ASSET MANAGEMENT CORP /JAPAN185,301$40.04M
PRINCIPAL FINANCIAL GROUP INC184,450$39.85M
Allianz Asset Management GmbH178,012$32.7M
JUPITER ASSET MANAGEMENT LTD160,057$34.58M
Quantinno Capital Management LP151,977$32.84M
Treasurer of the State of North Carolina148,629$32.11M
LETKO, BROSSEAU & ASSOCIATES INC146,562$31.67M
Portolan Capital Management, LLC142,856$30.87M
Palo Alto Investors LP140,279$30.31M
Walleye Trading LLC139,253$30.09M
Creative Planning138,613$29.95M
O'SHAUGHNESSY ASSET MANAGEMENT, LLC138,260$29.87M
FRANKLIN RESOURCES INC137,436$29.69M
Nippon Life Global Investors Americas, Inc.137,220$29.65M
IEQ CAPITAL, LLC132,142$28.55M
THOMPSON SIEGEL & WALMSLEY LLC130,512$28.2M
LORD, ABBETT & CO. LLC130,184$28.13M
ACADIAN ASSET MANAGEMENT LLC129,878$28.06M
ADAGE CAPITAL PARTNERS GP, L.L.C.129,599$28M
WELLS FARGO & COMPANY/MN128,664$27.8M
Aberdeen Group plc128,227$27.7M
BANK OF MONTREAL /CAN/124,267$26.85M
CANADA LIFE ASSURANCE Co122,258$26.37M
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM121,311$26.21M
AMERICAN CENTURY COMPANIES INC114,152$24.66M
Russell Investments Group, Ltd.114,116$24.68M
T. Rowe Price Investment Management, Inc.113,873$24.6M
934 other institutions10,940,100$2.348B
Total (1,033 institutions)141,985,376$30.65B