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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; 1,046 institutions reported holding it in 13F filings for Q2 2026, worth $30.7B in total; no superinvestor holds it.

13F holders, Q3 2023

Institutional positions in Biogen Inc. as of Sep 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
966
−27 vs. Q2 2023
Shares held
125.0M
−292.7K (−0.2%) vs. Q2 2023
Total value
$32.2B
−$3.51B (−9.8%) vs. Q2 2023
New holders
91
333 more added
Sold out
118
346 more reduced

16 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2023: 966 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: 1,046 institutions
Value heldQ3 2023: $32.2B
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 20261,046$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, Q3 2023

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q2 2023.

Institutions holding BIIB in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Caldwell Trust Co761$195.6K0.03%00.0%Unchanged
Boston Private Wealth LLC793$203.8K0.00%−62−7.3%Reduced
Robinson Value Management, Ltd.793$203.8K0.15%00.0%Unchanged
Garda Capital Partners LP796$204.6K0.13%+796New
Centennial Bank800$205.6K0.14%−350−30.4%Reduced
Sigma Investment Counselors Inc800$205.6K0.02%00.0%Unchanged
Community Bank, N.A.800$205.6K0.03%00.0%Unchanged
Alpha Cubed Investments, LLC802$206.1K0.01%+802New
IFP Advisors, Inc805$206.9K0.01%−28−3.4%Reduced
One Wealth Advisors, LLC809$207.9K0.05%00.0%Unchanged
Moors & Cabot, Inc.811$208.4K0.01%+811New
Courier Capital LLC816$209.7K0.02%00.0%Unchanged
Twinbeech Capital LP816$209.7K0.00%+816New
Manchester Capital Management LLC816$209.7K0.03%+150+22.5%Added
Vestmark Advisory Solutions, Inc.817$210.0K0.02%−6,977−89.5%Reduced
Private Capital Advisors, Inc.884$210.0K0.03%+884New
Pin Oak Investment Advisors Inc820$211.0K0.24%00.0%Unchanged
Avantax Advisory Services, Inc.833$214.1K0.00%−13−1.5%Reduced
Morningstar Investment Services LLC833$215.0K0.00%−42−4.8%Reduced
Sentry Investment Management LLC839$216.0K0.10%−114−12.0%Reduced
First Bank & Trust841$216.1K0.06%+16+1.9%Added
Penserra Capital Management LLC860$220.0K0.00%−134−13.5%Reduced
Pekin Hardy Strauss, Inc.856$220.0K0.03%00.0%Unchanged
Nilsine Partners, LLC857$220.3K0.03%+857New
Richelieu Gestion PLC858$221.0K0.21%00.0%Unchanged
Everett Harris & Co863$221.8K0.00%00.0%Unchanged
WealthTrust Axiom LLC866$222.6K0.08%00.0%Unchanged
Legacy Capital Group California, Inc.866$222.6K0.10%+112+14.9%Added
LGL Partners, LLC870$223.6K0.04%00.0%Unchanged
Founders Financial Alliance, LLC872$224.1K0.10%−58−6.2%Reduced
Herold Advisors, Inc.875$224.9K0.07%+875New
Independent Financial Group, LLC876$225.1K0.01%−80−8.4%Reduced
Stratos Wealth Advisors, LLC877$225.4K0.01%+146+20.0%Added
SageView Advisory Group, LLC879$225.9K0.01%+72+8.9%Added
Aquatic Capital Management LLC880$226.0K0.01%−7,520−89.5%Reduced
Evergreen Capital Management LLC885$227.5K0.01%−140−13.7%Reduced
Waddell & Associates, LLC887$228.0K0.03%00.0%Unchanged
Argent Trust Co888$228.2K0.01%+888New
Equitable Holdings, Inc.899$231.1K0.00%−86−8.7%Reduced
Vantage Consulting Group Inc899$231.1K0.15%+157+21.2%Added
Syntax Advisors, LLC899$231.1K0.20%+157+21.2%Added
TCTC Holdings, LLC900$231.3K0.01%00.0%Unchanged
Narus Financial Partners, LLC900$231.3K0.12%00.0%Unchanged
Shay Capital LLC900$231.3K0.07%+900New
Kathmere Capital Management, LLC907$233.1K0.03%00.0%Unchanged
Camden Capital, LLC915$233.3K0.03%+18+2.0%Added
Icon Wealth Partners, LLC910$233.9K0.03%−17−1.8%Reduced
Fort, L.P.911$234.1K0.65%+911New
North Star Asset Management Inc913$234.7K0.01%−7−0.8%Reduced
Acima Private Wealth, LLC916$235.4K0.10%00.0%Unchanged
Nexus Investment Management ULC920$236.4K0.03%+920New
Peregrine Asset Advisers, Inc.923$237.2K0.12%+923New
Osborne Partners Capital Management, LLC925$237.7K0.02%00.0%Unchanged
Mascoma Wealth Management LLC925$237.7K0.07%00.0%Unchanged
LCM Capital Management Inc928$238.5K0.19%+40+4.5%Added
Benjamin F. Edwards & Company, Inc.931$239.0K0.01%00.0%Unchanged
Defined Wealth Management, LLC931$239.3K0.20%+5+0.5%Added
Legacy Bridge, LLC940$241.6K0.17%−3,900−80.6%Reduced
Northern Capital Management, Inc.947$243.4K0.23%00.0%Unchanged
City State Bank950$244.0K0.13%+5+0.5%Added
Mairs & Power Inc950$244.2K0.00%−75−7.3%Reduced
Institute for Wealth Management, LLC.950$244.3K0.04%−5−0.5%Reduced
Zhang Financial LLC931$245.1K0.02%−78−7.7%Reduced
Naples Global Advisors, LLC962$247.2K0.03%00.0%Unchanged
GPS Wealth Strategies Group, LLC963$247.5K0.05%+93+10.7%Added
A. D. Beadell Investment Counsel, Inc.970$249.0K0.26%+970New
Lido Advisors, LLC972$249.8K0.00%+233+31.5%Added
Baystate Wealth Management LLC984$253.1K0.02%+1+0.1%Added
PFG Advisors985$253.2K0.02%+58+6.3%Added
Fort Sheridan Advisors LLC995$255.7K0.06%+995New
Himension Fund998$256.5K0.03%+998New
Empire Financial Management Company, LLC1,000$257.0K0.11%00.0%Unchanged
Calamos Wealth Management LLC1,001$257.3K0.02%00.0%Unchanged
Apollon Wealth Management, LLC1,004$258.0K0.01%+300+42.6%Added
Kingswood Wealth Advisors, LLC1,006$258.6K0.04%+1,006New
Machina Capital S.A.S.1,007$258.8K0.14%−1,387−57.9%Reduced
Personal Cfo Solutions, LLC1,008$259.1K0.05%+29+3.0%Added
Investors Asset Management of Georgia Inc1,032$259.5K0.14%00.0%Unchanged
Waters Parkerson & Co., LLC1,013$260.0K0.02%00.0%Unchanged
Mason & Associates Inc1,013$260.4K0.08%00.0%Unchanged
Virtus ETF Advisers LLC1,016$261.1K0.16%−129−11.3%Reduced
Dana Investment Advisors, Inc.1,033$265.5K0.01%+1,033New
Aviance Capital Partners, LLC1,035$266.0K0.06%00.0%Unchanged
Conning Inc.1,058$271.9K0.01%−25−2.3%Reduced
Clarius Group, LLC1,063$273.2K0.03%−350−24.8%Reduced
Worldquant Millennium Advisors LLC1,066$274.0K0.00%+1,066New
Advisors Capital Management, LLC1,071$275.0K0.01%+1,071New
Cognios Beta Neutral Large Cap Fund, LP1,080$277.6K0.36%−1,569−59.2%Reduced
First Light Asset Management, LLC1,096$281.7K0.03%00.0%Unchanged
Foundations Investment Advisors, LLC1,099$282.5K0.01%+1,099New
Camelot Portfolios, LLC1,100$282.7K0.27%−1,000−47.6%Reduced
Cullinan Associates Inc1,100$282.7K0.02%00.0%Unchanged
Sompo Asset Management Co., Ltd.1,100$282.7K0.06%+1,100New
Reuter James Wealth Management, LLC1,103$283.5K0.21%−29−2.6%Reduced
We Are One Seven, LLC1,117$287.1K0.02%−234−17.3%Reduced
Integrated Advisors Network LLC1,128$289.9K0.02%+266+30.9%Added
Qtron Investments LLC1,131$290.7K0.06%−1,271−52.9%Reduced
MAI Capital Management1,134$291.6K0.00%−826−42.1%Reduced
McIntyre Freedman & Flynn Investment Advisers Inc1,139$292.7K0.25%−12−1.0%Reduced
Prospera Financial Services Inc1,143$293.8K0.01%−5,821−83.6%Reduced