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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 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: 1,047 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 20261,047$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 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
Privium Fund Management B.V.3,088$793.6K0.24%−732−19.2%Reduced
Impax Asset Management Group plc3,092$794.7K0.00%−496−13.8%Reduced
Scott Investment Partners LLP3,100$797.0K1.83%00.0%Unchanged
Autumn Glory Partners, LLC3,121$802.1K0.49%+19+0.6%Added
Baker Tilly Wealth Management, LLC3,122$802.4K0.13%+16+0.5%Added
Klingenstein Fields & Co LP3,143$807.8K0.04%+1,318+72.2%Added
Desjardins Global Asset Management Inc.3,196$821.5K0.09%+575+21.9%Added
Massachusetts Wealth Management3,200$822.4K0.76%−50−1.5%Reduced
Advisory Services Network, LLC3,215$826.3K0.02%−1,305−28.9%Reduced
Three Bridge Wealth Advisors, LLC3,220$827.6K0.34%−28−0.9%Reduced
Horizon Kinetics Asset Management LLC3,250$835.3K0.02%00.0%Unchanged
Fifth Third Bancorp3,251$835.5K0.00%−704−17.8%Reduced
Trail Ridge Investment Advisors, LLC3,270$840.4K0.57%−262−7.4%Reduced
Investment House LLC3,336$857.4K0.07%+100+3.1%Added
Roberts Glore & Co Inc3,342$858.9K0.28%−275−7.6%Reduced
GWM Advisors LLC3,367$865.4K0.01%+314+10.3%Added
Inceptionr LLC3,367$865.4K0.49%+3,367New
Strategic Wealth Partners, Ltd.3,376$867.7K0.11%−445−11.6%Reduced
TD Private Client Wealth LLC3,427$880.8K0.04%−961−21.9%Reduced
National Asset Management, Inc.3,475$893.1K0.02%−347−9.1%Reduced
Vestcor Inc3,540$910.0K0.03%−330−8.5%Reduced
Tiaa Trust, National Association3,594$923.7K0.00%+3,594New
Portside Wealth Group, LLC3,584$925.0K0.17%+42+1.2%Added
Baldwin Brothers Inc3,611$928.1K0.08%−50−1.4%Reduced
Ironwood Financial, llc3,614$928.8K0.25%00.0%Unchanged
South Dakota Investment Council3,619$930.0K0.02%−200−5.2%Reduced
CWM, LLC3,658$940.0K0.01%−456−11.1%Reduced
Missouri Trust & Investment Co3,672$943.7K0.42%+1,225+50.1%Added
E Fund Management Co., Ltd.3,702$951.0K0.07%+630+20.5%Added
Uncommon Cents Investing LLC3,715$954.8K0.35%+915+32.7%Added
Arjuna Capital3,772$969.4K0.35%+116+3.2%Added
Axq Capital, LP3,800$976.6K0.34%+3,800New
QRG Capital Management, Inc.3,878$996.7K0.02%+3,878New
Alhambra Investment Partners LLC3,943$1.01M0.67%−236−5.6%Reduced
Everence Capital Management Inc3,950$1.01M0.08%00.0%Unchanged
Whittier Trust Co3,961$1.02M0.02%−22−0.6%Reduced
Texas Yale Capital Corp.3,987$1.02M0.05%00.0%Unchanged
Hills Bank & Trust Co3,987$1.02M0.12%+324+8.8%Added
Motley Fool Asset Management LLC3,992$1.03M0.08%+338+9.3%Added
Cohen Klingenstein LLC4,000$1.03M0.05%00.0%Unchanged
Richwood Investment Advisors, LLC4,007$1.03M1.05%−145−3.5%Reduced
Farmers & Merchants Investments Inc4,027$1.03M0.04%00.0%Unchanged
Stratos Wealth Partners, LTD.4,032$1.04M0.02%+42+1.1%Added
Pearl River Capital, LLC4,098$1.05M0.17%+1,376+50.6%Added
Tocqueville Asset Management L.P.4,221$1.08M0.02%−8,029−65.5%Reduced
Essex Investment Management Co LLC4,235$1.09M0.18%−777−15.5%Reduced
Edgestream Partners, L.P.4,386$1.13M0.09%+4,386New
China Universal Asset Management Co., Ltd.4,393$1.13M0.33%+2,215+101.7%Added
Cetera Investment Advisers4,431$1.14M0.01%+296+7.2%Added
Alberta Investment Management Corp4,500$1.16M0.01%00.0%Unchanged
Pinnacle Associates Ltd4,541$1.17M0.02%+112+2.5%Added
Dynamic Advisor Solutions LLC4,565$1.17M0.06%+21+0.5%Added
Northwestern Mutual Investment Management Company, LLC4,571$1.17M0.03%+6+0.1%Added
Estate Counselors, LLC4,590$1.18M0.16%+35+0.8%Added
Citizens & Northern Corp4,594$1.18M0.47%−131−2.8%Reduced
Sumitomo Life Insurance Co4,619$1.19M0.03%−61−1.3%Reduced
Private Advisor Group, LLC4,629$1.19M0.01%+97+2.1%Added
Enterprise Bank & Trust Co4,655$1.20M0.49%+55+1.2%Added
Lindenwold Advisors4,684$1.20M0.75%+29+0.6%Added
Assetmark, Inc4,874$1.25M0.01%+411+9.2%Added
TD Waterhouse Canada Inc.4,654$1.27M0.01%+366+8.5%Added
Ieq Capital, LLC4,952$1.27M0.03%+827+20.0%Added
Clear Street LLC5,000$1.29M0.06%+5,000New
Shell Asset Management Co5,032$1.29M0.05%−143−2.8%Reduced
Congress Park Capital LLC5,048$1.30M0.75%+5,048New
Bessemer Group Inc5,066$1.30M0.00%−333−6.2%Reduced
Unison Advisors LLC5,078$1.31M0.15%00.0%Unchanged
Bank Pictet & Cie (Asia) Ltd5,083$1.31M0.39%+1,259+32.9%Added
CAPROCK Group, Inc.5,086$1.31M0.10%−276−5.1%Reduced
Empirical Finance, LLC5,144$1.32M0.10%+430+9.1%Added
Seizert Capital Partners, LLC5,148$1.32M0.07%+1,405+37.5%Added
O'Shaughnessy Asset Management, LLC5,203$1.34M0.02%+58+1.1%Added
Spears Abacus Advisors LLC5,280$1.36M0.12%00.0%Unchanged
Kentucky Retirement Systems Insurance Trust Fund5,379$1.38M0.11%+183+3.5%Added
Linden Thomas Advisory Services, LLC5,380$1.38M0.31%+1,599+42.3%Added
Siemens Fonds Invest GmbH5,485$1.41M0.14%−1,242−18.5%Reduced
Pathstone Family Office, LLC5,576$1.43M0.01%+4,055+266.6%Added
Wealthfront Advisers LLC5,600$1.44M0.01%−4,941−46.9%Reduced
Intellectus Partners, LLC5,613$1.44M0.46%+13+0.2%Added
Ci Investments Inc.5,632$1.45M0.01%+417+8.0%Added
North Star Investment Management Corp.5,639$1.45M0.12%−20−0.4%Reduced
Meridian Wealth Management, LLC5,666$1.46M0.09%−42−0.7%Reduced
Ameritas Investment Partners, Inc.5,681$1.46M0.06%+802+16.4%Added
Advisor Partners II, LLC5,750$1.48M0.06%+148+2.6%Added
Cambridge Investment Research Advisors, Inc.5,759$1.48M0.01%−9,417−62.1%Reduced
Banque Cantonale Vaudoise5,813$1.50M0.07%−659−10.2%Reduced
Advisors Asset Management, Inc.5,870$1.51M0.03%−16−0.3%Reduced
Prelude Capital Management, LLC5,897$1.52M0.14%−115−1.9%Reduced
Capstone Investment Advisors, LLC5,904$1.52M0.04%+3,693+167.0%Added
Brown Brothers Harriman & Co5,967$1.53M0.01%00.0%Unchanged
Metropolitan Life Insurance Co5,992$1.54M0.08%−316−5.0%Reduced
Vident Advisory, LLC6,065$1.56M0.05%+6,065New
Cresset Asset Management, LLC6,068$1.56M0.01%−683−10.1%Reduced
Cetera Advisor Networks LLC6,090$1.57M0.01%+374+6.5%Added
Quantinno Capital Management LP6,156$1.58M0.07%+1,306+26.9%Added
Toroso Investments, LLC6,246$1.61M0.05%−1,185−15.9%Reduced
Hussman Strategic Advisors, Inc.6,300$1.62M0.31%00.0%Unchanged
Loring Wolcott & Coolidge Fiduciary Advisors LLP6,709$1.62M0.02%00.0%Unchanged
Qube Research & Technologies Ltd6,328$1.63M0.00%−42,041−86.9%Reduced
Oak Associates, Ltd6,440$1.66M0.14%+250+4.0%Added