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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 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: 1,046 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 20261,046$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 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
Syverson Strege & Co1$00.00%+1New
Guidance Point Advisors, LLC2$00.00%+2New
WestEnd Advisors, LLC–$2820.00%––
Global Financial Private Client, LLC2$5680.00%00.0%Unchanged
Covington Capital Management3$1.00K0.00%−75−96.2%Reduced
Rockbridge Investment Management, LCC5$1.00K0.00%−15−75.0%Reduced
Bogart Wealth, LLC5$1.00K0.00%−10−66.7%Reduced
TSFG, LLC5$1.00K0.00%00.0%Unchanged
Better Money Decisions, LLC2$1.00K0.00%−3−60.0%Reduced
First National Bank of South Miami4$1.00K0.00%00.0%Unchanged
McCarthy Asset Management, Inc.4$1.00K0.00%00.0%Unchanged
Edge Wealth Management LLC5$1.00K0.00%+5New
Aspire Private Capital, LLC8$2.00K0.00%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC7$2.00K0.00%00.0%Unchanged
Spectrum Management Group, LLC8$2.00K0.00%+8New
Financial Perspectives, Inc8$2.26K0.00%00.0%Unchanged
Adirondack Trust Co13$3.00K0.00%00.0%Unchanged
Peoples Financial Services Corp.10$3.00K0.00%00.0%Unchanged
Riggs Asset Managment Co. Inc.10$3.00K0.00%00.0%Unchanged
Mascoma Wealth Management LLC9$3.00K0.00%+9New
Longfellow Investment Management Co LLC13$4.00K0.00%00.0%Unchanged
FinTrust Capital Advisors, LLC13$4.00K0.00%00.0%Unchanged
AlphaMark Advisors, LLC17$5.00K0.00%00.0%Unchanged
Lenox Wealth Advisors, LLC17$5.00K0.00%00.0%Unchanged
Capital Advisors, Ltd. LLC17$5.00K0.00%00.0%Unchanged
Sugarloaf Wealth Management, LLC22$6.00K0.00%00.0%Unchanged
Norway Savings Bank20$6.00K0.00%00.0%Unchanged
Concord Wealth Partners24$7.00K0.00%−105−81.4%Reduced
Salem Investment Counselors Inc25$7.00K0.00%00.0%Unchanged
Bray Capital Advisors25$7.00K0.00%00.0%Unchanged
Alaethes Wealth LLC26$7.00K0.01%00.0%Unchanged
Advanced Research Investment Solutions, LLC25$7.08K0.00%00.0%Unchanged
Loomis Sayles & Co L P30$8.00K0.00%−44−59.5%Reduced
Blume Capital Management, Inc.28$8.00K0.00%00.0%Unchanged
Tower View Investment Management & Research LLC29$8.00K0.00%00.0%Unchanged
Front Row Advisors LLC30$8.00K0.00%00.0%Unchanged
First Financial Corp27$8.00K0.01%00.0%Unchanged
Mizuho Securities Co. Ltd.30$8.00K0.00%+30New
Kowal Investment Group, LLC30$8.00K0.00%+30New
Raffa Wealth Management, LLC31$8.77K0.00%00.0%Unchanged
Sargent Bickham Lagudis LLC31$9.00K0.00%00.0%Unchanged
AllSquare Wealth Management LLC33$9.00K0.01%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
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
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
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
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
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
Retirement Group, LLC59$17.0K0.01%00.0%Unchanged
Global Retirement Partners, LLC60$17.0K0.00%+14+30.4%Added
SOA Wealth Advisors, LLC.67$18.0K0.00%00.0%Unchanged
Trustcore Financial Services, LLC64$18.0K0.00%+17+36.2%Added
BerganKDV Wealth Management, LLC66$19.0K0.00%−48−42.1%Reduced
Pacific Center for Financial Services71$20.0K0.01%00.0%Unchanged
D'Orazio & Associates, Inc.71$20.0K0.00%+71New
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
Larson Financial Group LLC77$22.0K0.00%00.0%Unchanged
Tradition Wealth Management, LLC78$22.0K0.00%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA80$22.6K0.03%00.0%Unchanged
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
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
Catalyst Capital Advisors LLC90$25.0K0.00%−3−3.2%Reduced
West Paces Advisors Inc.90$25.5K0.01%−50−35.7%Reduced
Tarbox Family Office, Inc.96$27.0K0.00%−18−15.8%Reduced
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
BBVA USA103$29.0K0.00%−12−10.4%Reduced
Annapolis Financial Services, LLC102$29.0K0.01%00.0%Unchanged
Carolinas Wealth Consulting LLC105$30.0K0.01%+7+7.1%Added