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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, Q3 2021

Institutional positions in Biogen Inc. as of Sep 30, 2021. 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
1,044
−50 vs. Q2 2021
Shares held
123.8M
−1.32M (−1.1%) vs. Q2 2021
Total value
$35.1B
−$8.22B (−19.0%) vs. Q2 2021
New holders
74
351 more added
Sold out
124
398 more reduced

13 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 2021: 1,044 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 heldQ3 2021: $35.1B
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, Q3 2021

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q2 2021.

Institutions holding BIIB in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
CNB Bank222$63.0K0.04%−106−32.3%Reduced
Itau Unibanco Holding S.A.222$63.0K0.00%+77+53.1%Added
Montag A & Associates Inc209$59.0K0.00%00.0%Unchanged
MCF Advisors LLC210$59.0K0.01%+6+2.9%Added
Gemmer Asset Management LLC200$57.0K0.01%+11+5.8%Added
Lake Street Financial LLC195$55.0K0.01%+195New
North Star Investment Management Corp.187$53.0K0.00%−9−4.6%Reduced
O'Dell Group, LLC181$51.0K0.02%+181New
Barrett Asset Management, LLC175$50.0K0.00%−575−76.7%Reduced
Hexagon Capital Partners LLC177$50.0K0.01%00.0%Unchanged
Proequities, Inc.172$49.0K0.00%+100+138.9%Added
Harel Insurance Investments & Financial Services Ltd.168$48.0K0.00%+35+26.3%Added
Silvant Capital Management LLC164$46.0K0.01%00.0%Unchanged
Trust Co163$46.0K0.01%00.0%Unchanged
Graves-Light Private Wealth Management, Inc.162$46.0K0.01%+47+40.9%Added
Harbor Investment Advisory, LLC159$45.0K0.01%00.0%Unchanged
Sierra Capital LLC151$43.0K0.01%00.0%Unchanged
Hudock, Inc.145$41.0K0.01%−5−3.3%Reduced
BDO Wealth Advisors, LLC145$41.0K0.00%00.0%Unchanged
Resolute Partners Group145$41.0K0.01%00.0%Unchanged
Bartlett & Co. LLC140$40.0K0.00%−116−45.3%Reduced
Bartlett & Co. Wealth Management LLC140$39.6K0.00%−116−45.3%Reduced
Accel Wealth Management137$39.0K0.03%00.0%Unchanged
Gables Capital Management Inc.136$38.0K0.02%00.0%Unchanged
Rosenberg Matthew Hamilton134$38.0K0.02%+25+22.9%Added
Total Clarity Wealth Management, Inc.135$38.0K0.02%+135New
FourThought Financial, LLC132$37.0K0.00%00.0%Unchanged
Founders Capital Management130$37.0K0.03%+130New
Northern Oak Wealth Management Inc125$35.0K0.00%00.0%Unchanged
Security National Trust Co100$35.0K0.01%00.0%Unchanged
Kistler-Tiffany Companies, LLC119$34.0K0.01%00.0%Unchanged
Evolution Wealth Advisors, LLC120$34.0K0.01%+59+96.7%Added
First Manhattan Co120$33.0K0.00%−940−88.7%Reduced
Logan Capital Management Inc115$33.0K0.00%00.0%Unchanged
Hartford Financial Management Inc.115$33.0K0.01%00.0%Unchanged
Sandy Spring Bank115$33.0K0.00%00.0%Unchanged
Private Capital Group, LLC115$33.0K0.01%+8+7.5%Added
Smithfield Trust Co112$32.0K0.00%00.0%Unchanged
Anchor Investment Management, LLC110$31.1K0.00%00.0%Unchanged
Sittner & Nelson, LLC110$31.0K0.02%00.0%Unchanged
Valley National Advisers Inc111$31.0K0.01%+9+8.8%Added
Carolinas Wealth Consulting LLC105$30.0K0.01%+7+7.1%Added
BBVA USA103$29.0K0.00%−12−10.4%Reduced
Annapolis Financial Services, LLC102$29.0K0.01%00.0%Unchanged
Coastal Capital Group, Inc.100$28.0K0.01%−69−40.8%Reduced
Delta Asset Management LLC100$28.0K0.00%00.0%Unchanged
American National Bank100$28.0K0.01%00.0%Unchanged
Klaas Financial Asset Advisors, LLC100$28.0K0.01%00.0%Unchanged
Harvest Fund Management Co., Ltd99$28.0K0.01%+99New
Tarbox Family Office, Inc.96$27.0K0.00%−18−15.8%Reduced
West Paces Advisors Inc.90$25.5K0.01%−50−35.7%Reduced
Catalyst Capital Advisors LLC90$25.0K0.00%−3−3.2%Reduced
Johnson Financial Group, Inc.86$24.0K0.00%−825−90.6%Reduced
Stonebridge Capital Advisors LLC84$24.0K0.00%00.0%Unchanged
RWM Asset Management, LLC84$24.0K0.00%+84New
Evermay Wealth Management LLC82$23.0K0.00%00.0%Unchanged
Earnest Partners LLC82$23.0K0.00%00.0%Unchanged
Private Ocean, LLC80$23.0K0.00%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA80$22.6K0.03%00.0%Unchanged
Larson Financial Group LLC77$22.0K0.00%00.0%Unchanged
Tradition Wealth Management, LLC78$22.0K0.00%00.0%Unchanged
Country Trust Bank74$21.0K0.00%−96,932−99.9%Reduced
Albion Financial Group75$21.0K0.00%00.0%Unchanged
Independence Bank of Kentucky75$21.0K0.01%00.0%Unchanged
Versant Capital Management, Inc75$21.0K0.01%00.0%Unchanged
Pacific Center for Financial Services71$20.0K0.01%00.0%Unchanged
D'Orazio & Associates, Inc.71$20.0K0.00%+71New
BerganKDV Wealth Management, LLC66$19.0K0.00%−48−42.1%Reduced
SOA Wealth Advisors, LLC.67$18.0K0.00%00.0%Unchanged
Trustcore Financial Services, LLC64$18.0K0.00%+17+36.2%Added
Retirement Group, LLC59$17.0K0.01%00.0%Unchanged
Global Retirement Partners, LLC60$17.0K0.00%+14+30.4%Added
Pflug Koory, LLC57$16.0K0.01%00.0%Unchanged
Reilly Financial Advisors, LLC55$16.0K0.00%00.0%Unchanged
McIlrath & Eck, LLC56$16.0K0.00%00.0%Unchanged
Fieldpoint Private Securities, LLC55$16.0K0.00%00.0%Unchanged
Meridian Wealth Partners, LLC54$16.0K0.00%+54New
Seeyond55$15.0K0.00%−7,752−99.3%Reduced
South State Corp.52$15.0K0.00%−40−43.5%Reduced
Penserra Capital Management LLC54$15.0K0.00%+4+8.0%Added
Massmutual Trust Co FSB50$14.0K0.00%−10,998−99.5%Reduced
Wealth Quarterback LLC49$14.0K0.01%−6−10.9%Reduced
Tradewinds Capital Management, LLC50$14.0K0.00%00.0%Unchanged
Roble, Belko & Company, Inc50$14.0K0.00%00.0%Unchanged
MV Capital Management, Inc.48$14.0K0.00%+8+20.0%Added
Gerber Kawasaki Wealth & Investment Management50$14.0K0.00%+50New
West Oak Capital, LLC46$13.0K0.01%00.0%Unchanged
Column Capital Advisors, LLC46$13.0K0.00%−1−2.1%Reduced
Joseph P. Lucia & Associates, LLC46$13.0K0.01%00.0%Unchanged
Bell Investment Advisors, Inc46$13.0K0.00%+46New
Webster Bank, N. A.39$11.0K0.00%00.0%Unchanged
Tortoise Investment Management, LLC40$11.0K0.00%00.0%Unchanged
Global Wealth Management Investment Advisory, Inc.40$11.0K0.00%00.0%Unchanged
Wagner Wealth Management, LLC37$10.0K0.01%−75−67.0%Reduced
Evoke Wealth, LLC38$10.0K0.00%−12−24.0%Reduced
Prestige Wealth Management Group LLC37$10.0K0.00%00.0%Unchanged
Resources Management Corp35$10.0K0.00%00.0%Unchanged
First Personal Financial Services36$10.0K0.00%00.0%Unchanged
Toth Financial Advisory Corp36$10.0K0.00%+36New
Sargent Bickham Lagudis LLC31$9.00K0.00%00.0%Unchanged