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Biogen Inc.

BIIB
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0000875045

In the last 90 days, Biogen Inc. insiders filed 0 open-market purchases and 1 sale; 1,047 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.

13F holders, Q2 2023

Institutional positions in Biogen Inc. as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,009
+11 vs. Q1 2023
Shares held
126.8M
−1.09M (−0.9%) vs. Q1 2023
Total value
$36.1B
+$1.11B (+3.2%) vs. Q1 2023
New holders
96
322 more added
Sold out
85
363 more reduced

6 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting BIIB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 1,009 institutions
Q1 2021: 1,096 institutionsQ2 2021: 1,107 institutionsQ3 2021: 1,044 institutionsQ4 2021: 1,014 institutionsQ1 2022: 954 institutionsQ2 2022: 930 institutionsQ3 2022: 987 institutionsQ4 2022: 1,033 institutionsQ1 2023: 1,004 institutionsQ2 2023: 1,009 institutionsQ3 2023: 966 institutionsQ4 2023: 1,005 institutionsQ1 2024: 955 institutionsQ2 2024: 947 institutionsQ3 2024: 921 institutionsQ4 2024: 879 institutionsQ1 2025: 882 institutionsQ2 2025: 867 institutionsQ3 2025: 909 institutionsQ4 2025: 1,002 institutionsQ1 2026: 1,015 institutionsQ2 2026: 1,047 institutions
Value heldQ2 2023: $36.1B
Q1 2021: $35.7BQ2 2021: $43.6BQ3 2021: $35.1BQ4 2021: $29.7BQ1 2022: $25.9BQ2 2022: $25.0BQ3 2022: $33.0BQ4 2022: $34.6BQ1 2023: $35.0BQ2 2023: $36.1BQ3 2023: $32.2BQ4 2023: $33.3BQ1 2024: $28.0BQ2 2024: $29.9BQ3 2024: $25.1BQ4 2024: $20.2BQ1 2025: $17.7BQ2 2025: $16.3BQ3 2025: $18.4BQ4 2025: $24.6BQ1 2026: $24.7BQ2 2026: $30.7B
Institutions holding BIIB and their total value by quarter
QuarterHoldersValue
Q2 20261,047$30.7B
Q1 20261,015$24.7B
Q4 20251,002$24.6B
Q3 2025909$18.4B
Q2 2025867$16.3B
Q1 2025882$17.7B
Q4 2024879$20.2B
Q3 2024921$25.1B
Q2 2024947$29.9B
Q1 2024955$28.0B
Q4 20231,005$33.3B
Q3 2023966$32.2B
Q2 20231,009$36.1B
Q1 20231,004$35.0B
Q4 20221,033$34.6B
Q3 2022987$33.0B
Q2 2022930$25.0B
Q1 2022954$25.9B
Q4 20211,014$29.7B
Q3 20211,044$35.1B
Q2 20211,107$43.6B
Q1 20211,096$35.7B

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q1 2023.

Institutions holding BIIB in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Wellington Management Group LLP5,346,359$1.52B0.29%−106,529−2.0%Reduced
State Street Corp6,885,215$1.96B0.10%+128,215+1.9%Added
Vanguard Group Inc12,196,436$3.47B0.08%+38,774+0.3%Added
BlackRock Inc.14,065,994$4.01B0.11%+79,773+0.6%Added
Primecap Management Co16,025,876$4.56B3.81%+24,710+0.2%Added
Brinker Capital Investments, LLC9,153––+42+0.5%Added
Orion Portfolio Solutions, LLC9,153––+42+0.5%Added
Valley National Advisers Inc1––00.0%Unchanged
Transamerica Financial Advisors, Inc.1––00.0%Unchanged
Paradigm Biocapital Advisors LP0$00.00%−349,593−100.0%Sold out
Citadel Advisors LLC0$00.00%−245,084−100.0%Sold out
Deep Track Capital, LP0$00.00%−200,000−100.0%Sold out
Eversept Partners, LP0$00.00%−153,774−100.0%Sold out
Sofinnova Investments, Inc.0$00.00%−132,600−100.0%Sold out
Foundry Partners, LLC0$00.00%−64,753−100.0%Sold out
Jennison Associates LLC0$00.00%−61,787−100.0%Sold out
J. Goldman & Co LP0$00.00%−40,636−100.0%Sold out
Senator Investment Group LP0$00.00%−40,000−100.0%Sold out
Integral Health Asset Management, LLC0$00.00%−40,000−100.0%Sold out
Twinbeech Capital LP0$00.00%−19,311−100.0%Sold out
Parkman Healthcare Partners LLC0$00.00%−17,920−100.0%Sold out
Schonfeld Strategic Advisors LLC0$00.00%−15,106−100.0%Sold out
Taika Capital, LP0$00.00%−14,305−100.0%Sold out
First Republic Investment Management, Inc.0$00.00%−11,353−100.0%Sold out
CIBC World Markets Inc.0$00.00%−10,287−100.0%Sold out
Industrial Alliance Investment Management Inc.0$00.00%−9,270−100.0%Sold out
UBS Oconnor LLC0$00.00%−8,610−100.0%Sold out
Malaga Cove Capital, LLC0$00.00%−7,624−100.0%Sold out
Evoke Wealth, LLC0$00.00%−7,069−100.0%Sold out
Paragon Capital Management Inc0$00.00%−6,715−100.0%Sold out
Moody Lynn & Lieberson, LLC0$00.00%−5,890−100.0%Sold out
Factorial Partners, LLC0$00.00%−5,850−100.0%Sold out
Wealth Enhancement Advisory Services, LLC0$00.00%−5,164−100.0%Sold out
DCF Advisers, LLC0$00.00%−4,900−100.0%Sold out
Lombard Odier Asset Management (Europe) Ltd0$00.00%−4,205−100.0%Sold out
Engineers Gate Manager LP0$00.00%−3,462−100.0%Sold out
Northeast Financial Consultants Inc0$00.00%−3,039−100.0%Sold out
PDT Partners, LLC0$00.00%−3,039−100.0%Sold out
Exos TFP Holdings LLC0$00.00%−2,995−100.0%Sold out
HighVista Strategies LLC0$00.00%−2,743−100.0%Sold out
Lombard Odier Asset Management (Switzerland) SA0$00.00%−2,686−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−2,573−100.0%Sold out
Black Swift Group, LLC0$00.00%−2,500−100.0%Sold out
Portman Square Capital LLP0$00.00%−2,361−100.0%Sold out
Voloridge Investment Management, LLC0$00.00%−1,890−100.0%Sold out
Sender Co & Partners, Inc.0$00.00%−1,796−100.0%Sold out
Shay Capital LLC0$00.00%−1,756−100.0%Sold out
IFG Advisory, LLC0$00.00%−1,686−100.0%Sold out
Ergoteles LLC0$00.00%−1,632−100.0%Sold out
Ameritas Advisory Services, LLC0$00.00%−1,577−100.0%Sold out
Moore Capital Management, LP0$00.00%−1,500−100.0%Sold out
Asahi Life Asset Management Co., Ltd.0$00.00%−1,310−100.0%Sold out
Abn Amro Investment Solutions0$00.00%−1,236−100.0%Sold out
Belpointe Asset Management LLC0$00.00%−1,160−100.0%Sold out
Tradewinds, LLC.0$00.00%−1,146−100.0%Sold out
Balentine LLC0$00.00%−1,145−100.0%Sold out
Perpetual Ltd0$00.00%−1,129−100.0%Sold out
XR Securities LLC0$00.00%−1,122−100.0%Sold out
Diversified Trust Co0$00.00%−1,103−100.0%Sold out
Cipher Capital LP0$00.00%−1,082−100.0%Sold out
Acrisure Capital Management, LLC0$00.00%−1,036−100.0%Sold out
Cypress Capital Group0$00.00%−999−100.0%Sold out
Ground Swell Capital, LLC0$00.00%−991−100.0%Sold out
Sound View Wealth Advisors Group, LLC0$00.00%−987−100.0%Sold out
Ikarian Capital, LLC0$00.00%−962−100.0%Sold out
Sompo Asset Management Co., Ltd.0$00.00%−950−100.0%Sold out
Wealthsource Partners, LLC0$00.00%−894−100.0%Sold out
Mount Yale Investment Advisors, LLC0$00.00%−893−100.0%Sold out
RWM Asset Management, LLC0$00.00%−889−100.0%Sold out
Change Path, LLC0$00.00%−865−100.0%Sold out
Wealthcare Advisory Partners LLC0$00.00%−809−100.0%Sold out
Vista Private Wealth Partners. LLC0$00.00%−660−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−633−100.0%Sold out
Ellevest, Inc.0$00.00%−286−100.0%Sold out
DuPont Capital Management Corp0$00.00%−267−100.0%Sold out
World Equity Group, Inc.0$00.00%−21,010−100.0%Sold out
First Command Bank0$00.00%−230−100.0%Sold out
First Command Financial Services, Inc.0$00.00%−230−100.0%Sold out
FNY Investment Advisers, LLC0$00.00%−204−100.0%Sold out
Garda Capital Partners LP0$00.00%−186−100.0%Sold out
Accel Wealth Management0$00.00%−137−100.0%Sold out
Logan Capital Management Inc0$00.00%−115−100.0%Sold out
New Hampshire Trust0$00.00%−80−100.0%Sold out
Mechanics Financial Corp0$00.00%−50−100.0%Sold out
Schubert & Co0$00.00%−45−100.0%Sold out
Ten Capital Wealth Advisors, LLC0$00.00%−43−100.0%Sold out
Cary Street Partners Asset Management LLC0$00.00%−30−100.0%Sold out
Bellwether Advisors, LLC0$00.00%−27−100.0%Sold out
Oliver Lagore Vanvalin Investment Group0$00.00%−24−100.0%Sold out
BerganKDV Wealth Management, LLC0$00.00%−10−100.0%Sold out
Strategic Investment Solutions, Inc.0$00.00%−10−100.0%Sold out
Toth Financial Advisory Corp0$00.00%−7−100.0%Sold out
Legend Financial Advisors, Inc.0$00.00%−5−100.0%Sold out
WestEnd Advisors, LLC0$00.00%–Sold out
Tru Independence Asset Management 2, LLC––––Not filed
HighTower Trust Services, LTA––––Not filed
Ahrens Investment Partners LLC––––Not filed
LeJeune Puetz Investment Counsel LLC––––Not filed
Householder Group Estate & Retirement Specialist, LLC––––Not filed
Baldrige Asset Management LLC––––Not filed