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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
CoreCap Advisors, LLC408$62.4K0.00%+63+18.3%Added
Compagnie Lombard Odier SCmA420$64.2K0.00%00.0%Unchanged
Richardson Financial Services Inc.437$65.6K0.05%00.0%Unchanged
Paradigm Asset Management Co LLC455$69.6K0.02%00.0%Unchanged
Horizon Bancorp Inc461$70.0K0.03%−85−15.6%Reduced
Smartleaf Asset Management LLC471$70.8K0.01%+52+12.4%Added
Sunbelt Securities, Inc.477$71.6K0.01%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA470$71.9K0.02%−160−25.4%Reduced
Provenance Wealth Advisors, LLC500$76.5K0.01%00.0%Unchanged
Capital Analysts, LLC501$77.0K0.00%−15−2.9%Reduced
MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH518$77.8K0.00%00.0%Unchanged
Twin Lakes Capital Management, LLC511$78.1K0.05%00.0%Unchanged
Allworth Financial LP548$78.2K0.00%−633−53.6%Reduced
Cassady Schiller Wealth Management, LLC522$79.8K0.03%−24−4.4%Reduced
Hanson & Doremus Investment Management525$80.0K0.01%00.0%Unchanged
Vista Private Wealth Partners. LLC538$82.3K0.03%+163+43.5%Added
Salem Investment Counselors Inc567$86.7K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.574$87.8K0.00%+102+21.6%Added
Sentry Investment Management LLC589$90.0K0.04%−96−14.0%Reduced
Tidemark, LLC592$90.5K0.03%00.0%Unchanged
Aventura Private Wealth, LLC599$91.6K0.05%+599New
Skopos Labs, Inc.620$94.8K0.03%+517+501.9%Added
Lindbrook Capital, LLC624$95.4K0.01%+32+5.4%Added
MAI Capital Management626$95.7K0.00%+626New
Caldwell Trust Co662$101.2K0.01%−6−0.9%Reduced
Quadrant Capital Group LLC669$102.3K0.01%+263+64.8%Added
NBT Bank N A690$105.5K0.01%+25+3.8%Added
City State Bank692$105.8K0.04%−200−22.4%Reduced
BankPlus Trust Department694$106.1K0.03%+694New
GPS Wealth Strategies Group, LLC737$112.7K0.01%−70−8.7%Reduced
Bryn Mawr Trust Co742$113.5K0.00%−31−4.0%Reduced
R Squared Ltd790$120.8K0.12%+790New
IFP Advisors, Inc795$121.6K0.00%+45+6.0%Added
Centennial Bank800$122.3K0.06%00.0%Unchanged
BNP Paribas804$123.1K0.00%+104+14.9%Added
Eastern Bank856$130.9K0.00%−68−7.4%Reduced
JNBA Financial Advisors866$132.4K0.01%−150−14.8%Reduced
Manchester Capital Management LLC886$135.5K0.02%−22−2.4%Reduced
TCTC Holdings, LLC900$137.6K0.00%00.0%Unchanged
Acima Private Wealth, LLC916$140.1K0.05%00.0%Unchanged
Mascoma Wealth Management LLC927$141.8K0.04%+2+0.2%Added
Legacy Bridge, LLC940$143.7K0.07%00.0%Unchanged
Pin Oak Investment Advisors Inc820$159.0K0.14%00.0%Unchanged
Plato Investment Management Ltd1,037$159.2K0.01%+1,037New
Trust Co of Vermont1,049$160.4K0.01%−20−1.9%Reduced
Clearstead Advisors, LLC1,118$171.0K0.00%−302−21.3%Reduced
Whittier Trust Co1,256$192.1K0.00%−112−8.2%Reduced
Wynn Capital, LLC1,316$201.2K0.13%−260−16.5%Reduced
Parallel Advisors, LLC1,320$201.9K0.00%−225−14.6%Reduced
Mengis Capital Management, Inc.1,330$203.4K0.04%−50−3.6%Reduced
STF Management LP1,334$204.0K0.09%−758−36.2%Reduced
Moors & Cabot, Inc.1,335$204.1K0.01%+215+19.2%Added
Spirepoint Private Client, LLC1,338$204.6K0.03%−11−0.8%Reduced
RSM US Wealth Management LLC1,360$205.0K0.00%−422−23.7%Reduced
Cresset Asset Management, LLC1,341$205.1K0.00%−5,533−80.5%Reduced
MONECO Advisors, LLC1,341$205.1K0.02%+1,341New
Westside Investment Management, Inc.1,350$206.4K0.04%−1,064−44.1%Reduced
Regions Financial Corp1,354$207.1K0.00%−340−20.1%Reduced
ICONIQ Capital, LLC1,360$208.0K0.00%+1,360New
CIBC Private Wealth Group, LLC1,384$208.6K0.00%−148−9.7%Reduced
Vident Advisory, LLC1,386$211.9K0.00%+166+13.6%Added
Meeder Advisory Services, Inc.1,392$212.9K0.01%−130−8.5%Reduced
Israel Discount Bank of New York1,405$214.9K0.16%+82+6.2%Added
Parkside Financial Bank & Trust1,408$215.3K0.03%−104−6.9%Reduced
Quintet Private Bank (Europe) S.A.1,415$216.4K0.01%+705+99.3%Added
United Bank1,423$217.6K0.09%−2,213−60.9%Reduced
Livforsakringsbolaget Skandia, Omsesidigt1,430$218.6K0.01%00.0%Unchanged
Allianz SE1,459$219.1K0.01%−339−18.9%Reduced
Saratoga Research & Investment Management1,448$221.4K0.01%−149,272−99.0%Reduced
EverSource Wealth Advisors, LLC1,448$221.4K0.01%+1,258+662.1%Added
Prasad Wealth Partners, LLC1,450$221.7K0.07%+1,450New
Wesbanco Bank Inc1,458$223.0K0.01%00.0%Unchanged
Marshall Financial Group LLC1,468$224.5K0.05%−12−0.8%Reduced
IFG Advisory, LLC1,471$224.9K0.01%+1,471New
Kapitalo Investimentos Ltda1,472$225.1K0.15%+299+25.5%Added
Steward Partners Investment Advisory, LLC1,481$226.5K0.00%−691−31.8%Reduced
Western Wealth Management, LLC1,484$226.9K0.01%−100−6.3%Reduced
FineMark National Bank & Trust1,486$227.2K0.01%−121−7.5%Reduced
Cigna Investments Inc1,494$228.0K0.04%00.0%Unchanged
Integrated Advisors Network LLC1,495$228.6K0.01%−472−24.0%Reduced
Berkshire Asset Management LLC1,568$229.2K0.01%−461−22.7%Reduced
B&D White Capital Company, LLC1,500$229.4K0.04%−300−16.7%Reduced
Supplemental Annuity Collective Trust of NJ1,500$229.4K0.07%00.0%Unchanged
Virtue Capital Management, LLC1,500$229.4K0.05%+1,500New
Kingswood Wealth Advisors, LLC1,509$230.8K0.02%−901−37.4%Reduced
Cidel Asset Management Inc1,512$231.2K0.02%+191+14.5%Added
Sovereign Investment Advisors, LLC1,520$232.4K0.07%+1,520New
Plancorp, LLC1,522$232.7K0.01%−27−1.7%Reduced
Analyst IMS Investment Management Services Ltd.1,527$234.0K0.01%00.0%Unchanged
Beacon Pointe Advisors, LLC1,537$235.0K0.00%+149+10.7%Added
Raiffeisen Bank International AG1,571$235.9K0.00%+1,571New
Personal Cfo Solutions, LLC1,545$236.3K0.05%−37−2.3%Reduced
Citizens Financial Group Inc1,545$236.3K0.00%+1,545New
Flagship Harbor Advisors, LLC1,553$237.5K0.01%+155+11.1%Added
Clearbridge Investments, LLC1,584$242.2K0.00%−600,402−99.7%Reduced
HB Wealth Management, LLC1,589$242.9K0.00%+213+15.5%Added
AE Wealth Management LLC1,590$243.1K0.00%+1,590New
Basepoint Wealth LLC1,590$243.1K0.19%−347−17.9%Reduced
Farther Finance Advisors, LLC1,595$243.9K0.01%−6,061−79.2%Reduced
Bleakley Financial Group, LLC1,608$245.9K0.01%+535+49.9%Added