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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, Q1 2024

Institutional positions in Biogen Inc. as of Mar 31, 2024. 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
955
−41 vs. Q4 2023
Shares held
129.7M
+1.13M (+0.9%) vs. Q4 2023
Total value
$28.0B
−$5.30B (−15.9%) vs. Q4 2023
New holders
105
304 more added
Sold out
146
354 more reduced

9 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2024: 955 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 heldQ1 2024: $28.0B
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, Q1 2024

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q4 2023.

Institutions holding BIIB in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Ameritas Advisory Services, LLC1,322$284.0K0.01%−164−11.0%Reduced
Valeo Financial Advisors, LLC1,412$285.2K0.01%+489+53.0%Added
Dynamic Advisor Solutions LLC1,331$287.0K0.01%−3,519−72.6%Reduced
Epoch Investment Partners, Inc.1,339$288.7K0.00%−275,885−99.5%Reduced
Nwam LLC1,324$289.9K0.02%+78+6.3%Added
Spirepoint Private Client, LLC1,349$290.9K0.04%+1,349New
Chicago Partners Investment Group LLC1,525$294.6K0.01%−85−5.3%Reduced
Flagship Harbor Advisors, LLC1,378$297.1K0.02%−253−15.5%Reduced
ISAM Funds (UK) Ltd1,389$299.5K0.17%+1,389New
Argent Trust Co1,392$300.2K0.01%+444+46.8%Added
Moloney Securities Asset Management, LLC1,397$301.2K0.05%+1,397New
Morningstar Investment Services LLC1,427$309.0K0.00%−429−23.1%Reduced
Weik Capital Management1,440$310.5K0.13%+180+14.3%Added
Norden Group LLC1,440$310.5K0.06%+290+25.2%Added
Cornell Pochily Investment Advisors, Inc.1,441$310.7K0.12%−105−6.8%Reduced
Bank Pictet & Cie (Asia) Ltd1,444$311.4K0.17%−3,639−71.6%Reduced
Deseret Mutual Benefit Administrators1,445$311.6K0.16%+143+11.0%Added
AIA Group Ltd1,464$315.7K0.01%−99−6.3%Reduced
Greenleaf Trust1,471$317.2K0.00%−684−31.7%Reduced
Virtus ETF Advisers LLC1,486$320.4K0.17%+214+16.8%Added
Wesbanco Bank Inc1,488$320.9K0.01%+1,488New
Supplemental Annuity Collective Trust of NJ1,500$323.4K0.10%00.0%Unchanged
Clearstead Advisors, LLC1,441$324.7K0.02%−387−21.2%Reduced
David Loasby1,583$326.9K0.03%+102+6.9%Added
Evergreen Wealth Solutions, LLC1,522$328.2K0.24%−272−15.2%Reduced
Cigna Investments Inc1,524$329.0K0.06%−20−1.3%Reduced
Analyst IMS Investment Management Services Ltd.1,527$329.0K0.01%+39+2.6%Added
Meeder Advisory Services, Inc.1,529$329.7K0.03%−159−9.4%Reduced
Parkside Financial Bank & Trust1,551$334.4K0.05%−6−0.4%Reduced
Weiss Asset Management LP1,554$335.1K0.02%+1,554New
Kingswood Wealth Advisors, LLC1,559$336.2K0.04%+1,559New
Davenport & Co LLC1,566$337.7K0.00%+280+21.8%Added
Garda Capital Partners LP1,579$340.5K0.16%−182−10.3%Reduced
Choate Investment Advisors1,580$340.7K0.01%−83−5.0%Reduced
Pitcairn Co1,591$343.1K0.02%−61−3.7%Reduced
Wynn Capital, LLC1,591$343.1K0.27%−167−9.5%Reduced
Plancorp, LLC1,606$346.3K0.02%−63−3.8%Reduced
Israel Discount Bank of New York1,623$350.0K0.44%−503−23.7%Reduced
Allianz SE1,630$351.5K0.01%+1,630New
HB Wealth Management, LLC1,645$354.7K0.00%+237+16.8%Added
Edgestream Partners, L.P.1,650$355.8K0.02%+1,650New
FineMark National Bank & Trust1,652$356.2K0.01%+540+48.6%Added
Wellington Shields Capital Management, LLC1,652$356.2K0.07%00.0%Unchanged
Regal Investment Advisors LLC1,653$356.4K0.02%00.0%Unchanged
Teza Capital Management LLC1,654$356.7K0.05%+1,654New
Asahi Life Asset Management Co., Ltd.1,660$357.9K0.21%+1,660New
Trust Asset Management LLC1,662$358.4K0.03%00.0%Unchanged
Jacobi Capital Management LLC1,664$358.8K0.03%+55+3.4%Added
Verdence Capital Advisors LLC1,665$359.0K0.03%−9−0.5%Reduced
Integrated Advisors Network LLC1,666$359.2K0.02%+864+107.7%Added
Ballentine Partners, LLC1,667$359.5K0.01%+18+1.1%Added
Western Wealth Management, LLC1,667$359.5K0.03%+136+8.9%Added
Insigneo Advisory Services, LLC1,680$362.3K0.04%+393+30.5%Added
Atria Wealth Solutions, Inc.1,690$364.4K0.00%−836−33.1%Reduced
International Assets Investment Management, LLC1,711$367.6K0.04%−132−7.2%Reduced
Eudaimonia Partners, LLC1,722$371.3K0.09%00.0%Unchanged
Seven Eight Capital, LP1,724$371.7K0.04%+1,724New
Intrust Bank NA1,726$372.2K0.04%−232−11.8%Reduced
Syon Capital LLC1,727$372.4K0.04%+153+9.7%Added
Wedbush Securities Inc1,730$373.0K0.01%+185+12.0%Added
Armstrong, Fleming & Moore, Inc1,733$373.8K0.26%00.0%Unchanged
Fullerton Fund Management Co Ltd.1,734$373.9K0.02%+1,734New
Veriti Management LLC1,740$375.2K0.03%−101−5.5%Reduced
Central Bank & Trust Co1,757$378.9K0.05%−69−3.8%Reduced
Arden Trust Co1,781$384.0K0.05%−155−8.0%Reduced
Prospera Financial Services Inc1,784$384.6K0.01%−607−25.4%Reduced
Axq Capital, LP1,800$388.1K0.09%−1,100−37.9%Reduced
Trail Ridge Investment Advisors, LLC1,807$389.6K0.22%−1,192−39.7%Reduced
Connectus Wealth, LLC1,814$391.2K0.01%00.0%Unchanged
Cary Street Partner Investment Advisory LLC1,825$393.5K0.02%−8−0.4%Reduced
Mission Wealth Management, LP1,826$393.7K0.01%+66+3.8%Added
Parallel Advisors, LLC1,826$393.7K0.01%−75−3.9%Reduced
Kovitz Investment Group Partners, LLC1,827$394.0K0.01%+1,827New
Prelude Capital Management, LLC1,838$396.3K0.03%+38+2.1%Added
Rock Point Advisors, LLC1,840$396.8K0.12%00.0%Unchanged
PFG Investments, LLC1,854$399.8K0.02%+1,854New
Morningstar Investment Management LLC1,865$402.0K0.04%00.0%Unchanged
Forbes J M & Co LLP1,869$403.0K0.04%−39−2.0%Reduced
Steward Partners Investment Advisory, LLC1,871$403.4K0.00%+71+3.9%Added
Capital Investment Advisors, LLC1,876$404.5K0.01%−126−6.3%Reduced
Fox Hill Wealth Management1,876$404.5K0.27%−28−1.5%Reduced
Peapack Gladstone Financial Corp1,884$406.0K0.01%−929−33.0%Reduced
Acadian Asset Management LLC1,889$407.0K0.00%−38−2.0%Reduced
Westpac Banking Corp1,906$411.0K0.03%−19−1.0%Reduced
Eqis Capital Management, Inc.1,908$411.4K0.03%−35−1.8%Reduced
Proathlete Wealth Management LLC1,913$412.5K0.22%−11−0.6%Reduced
PAX Financial Group, LLC1,953$421.1K0.08%+156+8.7%Added
Fox Run Management, L.L.C.1,974$425.7K0.09%+1,974New
Trust Co of Toledo NA1,987$428.5K0.07%−988−33.2%Reduced
Signaturefd, LLC1,988$428.7K0.01%−181−8.3%Reduced
HighPoint Advisor Group LLC1,907$430.0K0.03%−10−0.5%Reduced
Legacy Wealth Asset Management, LLC1,998$430.8K0.12%+77+4.0%Added
Heritage Wealth Advisors2,000$431.3K0.02%00.0%Unchanged
Bank Julius Baer & Co. Ltd, Zurich2,008$433.0K0.00%+296+17.3%Added
MQS Management LLC2,010$433.4K0.25%+2,010New
Alliance Wealth Advisors, LLC2,023$436.1K0.13%+62+3.2%Added
D.A. Davidson & Co.2,031$437.9K0.00%−54−2.6%Reduced
Estabrook Capital Management2,033$438.4K0.07%00.0%Unchanged
Avestar Capital, LLC2,034$438.6K0.05%−103−4.8%Reduced
Cognios Beta Neutral Large Cap Fund, LP2,052$442.5K0.58%+2,052New