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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, Q4 2024

Institutional positions in Biogen Inc. as of Dec 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
879
−27 vs. Q3 2024
Shares held
132.4M
+2.79M (+2.2%) vs. Q3 2024
Total value
$20.2B
−$4.80B (−19.2%) vs. Q3 2024
New holders
133
300 more added
Sold out
160
322 more reduced

15 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 holdersQ4 2024: 879 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 heldQ4 2024: $20.2B
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, Q4 2024

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q3 2024.

Institutions holding BIIB in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Hills Bank & Trust Co4,570$698.8K0.05%+207+4.7%Added
Integrated Wealth Concepts LLC4,479$684.9K0.01%+2,908+185.1%Added
Sherbrooke Park Advisers LLC4,464$682.6K0.22%+1,914+75.1%Added
Sig Brokerage, LP4,411$674.5K0.32%+4,411New
Annis Gardner Whiting Capital Advisors, LLC4,409$674.2K0.19%−27−0.6%Reduced
Kennedy Capital Management, Inc.4,395$672.1K0.01%+815+22.8%Added
EP Wealth Advisors, LLC4,391$671.5K0.01%+301+7.4%Added
Everence Capital Management Inc4,360$667.0K0.04%+1,570+56.3%Added
Siemens Fonds Invest GmbH4,420$663.8K0.07%−1,100−19.9%Reduced
Allstate Corp4,298$657.3K0.02%+4,298New
Empowered Funds, LLC4,277$654.0K0.01%−14,631−77.4%Reduced
Tokio Marine Asset Management Co Ltd4,272$653.3K0.02%00.0%Unchanged
Pinnacle Associates Ltd4,254$650.5K0.01%−303−6.6%Reduced
Oppenheimer & Co Inc4,224$645.9K0.01%−1,826−30.2%Reduced
Crossmark Global Holdings, Inc.4,187$640.0K0.01%−2,870−40.7%Reduced
Savant Capital, LLC4,179$639.1K0.01%+423+11.3%Added
Motley Fool Asset Management LLC4,133$632.0K0.03%−1,728−29.5%Reduced
Investment Management Corp of Ontario4,070$622.4K0.02%−800−16.4%Reduced
V-Square Quantitative Management LLC4,015$614.0K0.09%+180+4.7%Added
Farmers & Merchants Investments Inc4,006$612.6K0.02%00.0%Unchanged
Cohen Klingenstein LLC4,000$611.7K0.02%00.0%Unchanged
Texas Yale Capital Corp.3,987$609.7K0.02%00.0%Unchanged
Shell Asset Management Co3,952$604.0K0.03%−103−2.5%Reduced
Jacobi Capital Management LLC3,947$603.6K0.05%+1,132+40.2%Added
Syon Capital LLC3,937$602.0K0.05%+2,580+190.1%Added
GeoWealth Management, LLC3,903$596.8K0.02%+1,986+103.6%Added
Kovitz Investment Group Partners, LLC3,898$596.2K0.00%−1,372−26.0%Reduced
Missouri Trust & Investment Co3,865$591.0K0.21%−777−16.7%Reduced
Sectoral Asset Management Inc3,852$589.0K0.39%−2,175−36.1%Reduced
Forum Financial Management, LP3,804$581.7K0.01%+796+26.5%Added
Lifeworks Advisors, LLC3,796$580.6K0.10%−979−20.5%Reduced
Colony Group, LLC3,778$577.8K0.00%+1,061+39.1%Added
Wahed Invest LLC3,752$573.8K0.10%+216+6.1%Added
Virtu Financial LLC3,712$568.0K0.03%−17,495−82.5%Reduced
South Dakota Investment Council3,613$552.0K0.01%00.0%Unchanged
Phoenix Holdings Ltd.3,608$551.8K0.01%+3,608New
Cornerstone Advisors, LLC3,600$550.5K0.02%00.0%Unchanged
Tiaa Trust, National Association3,575$546.7K0.00%+108+3.1%Added
Wedmont Private Capital3,670$546.2K0.03%+2,392+187.2%Added
Roberts Glore & Co Inc3,536$540.7K0.16%−148−4.0%Reduced
Ironwood Financial, llc3,535$540.6K0.11%00.0%Unchanged
ARGA Investment Management, LP3,532$540.1K0.02%+910+34.7%Added
Uncommon Cents Investing LLC3,465$529.9K0.16%−75−2.1%Reduced
Neuberger Berman Group LLC3,442$526.3K0.00%−28,657−89.3%Reduced
Cambridge Investment Research Advisors, Inc.3,439$526.0K0.00%+232+7.2%Added
Tobam3,358$514.0K0.16%−1,987−37.2%Reduced
Frank, Rimerman Advisors LLC3,337$510.3K0.04%+3,337New
Panagora Asset Management Inc3,319$507.5K0.00%−6,827−67.3%Reduced
Prime Capital Investment Advisors, LLC3,274$500.7K0.01%−1,805−35.5%Reduced
Investment House LLC3,269$499.9K0.03%00.0%Unchanged
Fifth Third Bancorp3,246$496.4K0.00%−113−3.4%Reduced
RDA Financial Network3,210$490.9K0.14%+3,210New
Acadian Asset Management LLC3,200$489.0K0.00%+742+30.2%Added
Horizon Kinetics Asset Management LLC3,169$484.6K0.01%+129+4.2%Added
Stephens Inc3,145$480.9K0.01%−2,270−41.9%Reduced
Richwood Investment Advisors, LLC3,131$478.7K0.40%−301−8.8%Reduced
Qsemble Capital Management, LP3,061$468.1K0.06%+1,446+89.5%Added
ADAR1 Capital Management, LLC3,045$465.6K0.10%−26,580−89.7%Reduced
Sequoia Financial Advisors, LLC3,026$462.7K0.00%+729+31.7%Added
Humankind Investments LLC3,010$460.3K0.12%+739+32.5%Added
APG Asset Management US Inc.3,010$460.3K0.00%+3,010New
Quarry LP3,005$459.5K0.09%+3,005New
Northwest Bank & Trust Co2,855$458.5K0.34%+34+1.2%Added
Great Valley Advisor Group, Inc.2,981$455.9K0.01%−248−7.7%Reduced
KCM Investment Advisors LLC2,944$450.2K0.02%00.0%Unchanged
Merit Financial Group, LLC2,931$448.2K0.01%+2,931New
Citizens & Northern Corp2,894$442.6K0.12%−1,328−31.5%Reduced
Cim Investment Mangement Inc2,890$441.9K0.13%+13+0.5%Added
Enterprise Bank & Trust Co2,864$438.0K0.14%−1,138−28.4%Reduced
Advisor OS, LLC2,819$431.1K0.05%+2,819New
TownSquare Capital, LLC2,811$429.9K0.00%−9,997−78.1%Reduced
Coldstream Capital Management Inc2,795$427.5K0.01%+398+16.6%Added
Focus Financial Network, Inc.2,782$425.4K0.02%−20−0.7%Reduced
Wetherby Asset Management Inc2,762$422.4K0.02%−283−9.3%Reduced
Kennondale Capital Management LLC2,760$422.1K0.46%+2,760New
Atom Investors LP2,745$419.8K0.05%+2,745New
Massachusetts Wealth Management2,740$419.0K0.26%−135−4.7%Reduced
Klingenstein Fields & Co LP2,731$417.6K0.02%−225−7.6%Reduced
Advisory Services Network, LLC2,722$416.2K0.01%−484−15.1%Reduced
Stratos Wealth Partners, LTD.2,696$412.3K0.01%−500−15.6%Reduced
Generali Investments, Management Co LLC2,678$409.5K0.11%+2,678New
Fernwood Investment Management, LLC2,660$406.8K0.14%−100−3.6%Reduced
Integrated Quantitative Investments LLC2,660$406.8K0.20%+2,660New
Bellevue Group AG2,652$405.5K0.01%+18+0.7%Added
Eagle Global Advisors LLC2,625$401.4K0.02%00.0%Unchanged
QRG Capital Management, Inc.2,604$398.2K0.00%+67+2.6%Added
Fiduciary Trust Co2,600$397.6K0.01%−634−19.6%Reduced
Westpac Banking Corp2,585$395.3K0.03%+436+20.3%Added
Ocean Capital Management, LLC2,560$391.5K0.09%−134−5.0%Reduced
Vestcor Inc2,536$388.0K0.01%−4−0.2%Reduced
Prudential PLC2,508$383.5K0.00%00.0%Unchanged
State of Wyoming2,505$383.1K0.05%+2,505New
Tema ETFs LLC2,501$382.5K0.16%+2,501New
NJ State Employees Deferred Compensation Plan2,500$382.3K0.05%00.0%Unchanged
Ramiah Investment Group2,494$381.4K0.35%+240+10.6%Added
Quantbot Technologies LP2,472$378.0K0.01%+1,694+217.7%Added
Independent Advisor Alliance2,469$377.6K0.01%−5,820−70.2%Reduced
Ballentine Partners, LLC2,440$373.1K0.01%+911+59.6%Added
TFB Advisors LLC2,434$372.2K0.11%−13−0.5%Reduced
Allegheny Financial Group LTD2,426$371.1K0.10%−10.0%Reduced