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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 2023

Institutional positions in Biogen Inc. as of Dec 31, 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
1,005
+56 vs. Q3 2023
Shares held
128.7M
+4.02M (+3.2%) vs. Q3 2023
Total value
$33.3B
+$1.22B (+3.8%) vs. Q3 2023
New holders
137
287 more added
Sold out
81
373 more reduced

17 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2023: 1,005 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 2023: $33.3B
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 2023

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q3 2023.

Institutions holding BIIB in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
A. D. Beadell Investment Counsel, Inc.970$251.0K0.24%00.0%Unchanged
Legacy Capital Group California, Inc.976$252.6K0.10%+110+12.7%Added
Vantage Consulting Group Inc979$253.3K0.17%+80+8.9%Added
Gitterman Wealth Management, LLC980$253.6K0.11%+980New
Empire Financial Management Company, LLC1,000$258.8K0.10%00.0%Unchanged
Calamos Wealth Management LLC1,001$259.0K0.02%00.0%Unchanged
Waldron Private Wealth LLC1,011$261.6K0.01%−169−14.3%Reduced
Waters Parkerson & Co., LLC1,013$262.0K0.01%00.0%Unchanged
Dana Investment Advisors, Inc.1,023$264.7K0.01%−10−1.0%Reduced
Personal Cfo Solutions, LLC1,024$265.0K0.05%+16+1.6%Added
Mason & Associates Inc1,028$266.0K0.08%+15+1.5%Added
Aviance Capital Partners, LLC1,030$266.5K0.06%−5−0.5%Reduced
Investors Asset Management of Georgia Inc1,032$267.1K0.14%00.0%Unchanged
Cidel Asset Management Inc1,036$268.1K0.01%+1,036New
First Citizens Bank & Trust Co1,043$269.9K0.00%−25,305−96.0%Reduced
Harbour Capital Advisors, LLC1,025$270.0K0.07%+1,025New
Mather Group, LLC.1,048$271.2K0.00%−115−9.9%Reduced
NorthRock Partners, LLC1,050$271.7K0.01%+1,050New
Lighthouse Investment Partners, LLC1,053$272.5K0.02%+1,053New
Conning Inc.1,073$277.7K0.01%+15+1.4%Added
PFG Advisors1,076$278.4K0.02%+91+9.2%Added
Reuter James Wealth Management, LLC1,088$281.5K0.19%−15−1.4%Reduced
Equitable Holdings, Inc.1,089$281.8K0.00%+190+21.1%Added
First Light Asset Management, LLC1,096$283.6K0.02%00.0%Unchanged
Cullinan Associates Inc1,100$284.6K0.02%00.0%Unchanged
FineMark National Bank & Trust1,112$287.8K0.01%−136−10.9%Reduced
KMG Fiduciary Partners, LLC1,114$288.4K0.03%−386−25.7%Reduced
Clarius Group, LLC1,123$290.6K0.02%+60+5.6%Added
Westwood Wealth Management1,125$291.1K0.22%−50−4.3%Reduced
McIntyre Freedman & Flynn Investment Advisers Inc1,139$294.7K0.24%00.0%Unchanged
Snowden Capital Advisors LLC1,140$295.0K0.01%−27−2.3%Reduced
Norden Group LLC1,150$297.6K0.05%−996−46.4%Reduced
Advisor Resource Council1,151$297.8K0.03%+1,151New
Culbertson A N & Co Inc1,165$301.5K0.06%00.0%Unchanged
Achmea Investment Management B.V.1,169$303.0K0.01%−21,733−94.9%Reduced
Fiduciary Family Office, LLC1,172$303.3K0.13%+1,172New
Boston Private Wealth LLC1,174$303.8K0.01%+381+48.0%Added
Hara Capital LLC1,174$303.8K0.21%+1,174New
Bell Bank1,175$304.1K0.03%00.0%Unchanged
Meridian Wealth Management, LLC1,179$305.1K0.02%−4,487−79.2%Reduced
Parkwood LLC1,186$307.0K0.05%−20−1.7%Reduced
Sound View Wealth Advisors Group, LLC1,188$307.4K0.03%+25+2.1%Added
Marcum Wealth, LLC1,195$309.2K0.03%−12−1.0%Reduced
Grandfield & Dodd, LLC1,199$310.3K0.02%00.0%Unchanged
Lincoln National Corp1,212$313.6K0.01%−244−16.8%Reduced
Alta Wealth Advisors LLC1,215$314.4K0.18%−720−37.2%Reduced
Platform Technology Partners1,289$315.5K0.12%00.0%Unchanged
Grant/GrossMendelsohn, LLC1,290$315.8K0.13%00.0%Unchanged
Nwam LLC1,246$322.4K0.03%+80+6.9%Added
Williams Jones Wealth Management, LLC.1,247$322.7K0.00%−29−2.3%Reduced
Boltwood Capital Management1,247$322.7K0.11%−10−0.8%Reduced
Advisors Capital Management, LLC1,247$323.0K0.01%+176+16.4%Added
Weik Capital Management1,260$326.1K0.15%−275−17.9%Reduced
DGS Capital Management, LLC1,265$327.3K0.13%+51+4.2%Added
Royal Capital Wealth Management, LLC1,266$327.6K0.28%−29−2.2%Reduced
Harvest Fund Management Co., Ltd1,290$329.0K0.05%+133+11.5%Added
Virtus ETF Advisers LLC1,272$329.2K0.21%+256+25.2%Added
JNBA Financial Advisors1,272$329.2K0.04%00.0%Unchanged
Ferguson Wellman Capital Management, Inc1,275$329.9K0.01%−4−0.3%Reduced
Davenport & Co LLC1,286$332.8K0.00%−74−5.4%Reduced
Insigneo Advisory Services, LLC1,287$333.0K0.05%+1,287New
Deseret Mutual Benefit Administrators1,302$336.9K0.19%−396−23.3%Reduced
Symmetry Partners, LLC1,293$337.0K0.02%00.0%Unchanged
We Are One Seven, LLC1,310$339.0K0.02%+193+17.3%Added
Empirical Asset Management, LLC1,315$340.3K0.28%+106+8.8%Added
Jump Financial, LLC1,337$346.0K0.01%+1,337New
NewEdge Wealth, LLC1,381$357.4K0.01%−21−1.5%Reduced
Avidian Wealth Solutions, LLC1,387$358.9K0.02%+75+5.7%Added
HB Wealth Management, LLC1,408$364.3K0.01%−252−15.2%Reduced
Aviso Wealth Management1,425$368.7K0.27%+1,425New
Concurrent Investment Advisors, LLC1,430$370.0K0.02%+1,430New
Altfest L J & Co Inc1,433$371.0K0.05%+174+13.8%Added
Transcend Wealth Collective, LLC1,435$371.3K0.03%00.0%Unchanged
Marex Group plc1,436$371.6K0.01%+193+15.5%Added
Cetera Advisors LLC1,439$372.4K0.01%+83+6.1%Added
Ameritas Advisory Services, LLC1,486$377.3K0.02%−17−1.1%Reduced
Gsa Capital Partners LLP1,471$381.0K0.03%+1,471New
David Loasby1,481$381.9K0.04%−449−23.3%Reduced
Analyst IMS Investment Management Services Ltd.1,488$385.0K0.02%00.0%Unchanged
Supplemental Annuity Collective Trust of NJ1,500$388.2K0.13%00.0%Unchanged
Western Wealth Management, LLC1,531$396.2K0.03%+7+0.5%Added
Chicago Partners Investment Group LLC1,610$397.9K0.02%−40−2.4%Reduced
Wedbush Securities Inc1,545$400.0K0.02%−47−3.0%Reduced
Cigna Investments Inc1,544$400.0K0.08%−4−0.3%Reduced
Cornell Pochily Investment Advisors, Inc.1,546$400.1K0.17%00.0%Unchanged
Parkside Financial Bank & Trust1,557$402.9K0.07%+22+1.4%Added
AIA Group Ltd1,563$404.5K0.02%−141−8.3%Reduced
Syon Capital LLC1,574$407.3K0.04%−92−5.5%Reduced
Maverick Capital LtdSuperinvestorMaverick Capital1,600$414.0K0.01%+1,600New
HighPoint Advisor Group LLC1,917$415.0K0.03%+1,917New
Jacobi Capital Management LLC1,609$416.4K0.04%−200−11.1%Reduced
Flagship Harbor Advisors, LLC1,631$422.1K0.03%−30−1.8%Reduced
Balanced Rock Investment Advisor1,648$426.5K0.38%+1,648New
Ballentine Partners, LLC1,649$426.7K0.01%+121+7.9%Added
Pitcairn Co1,652$427.5K0.03%−55−3.2%Reduced
Wellington Shields Capital Management, LLC1,652$427.5K0.05%00.0%Unchanged
Regal Investment Advisors LLC1,653$427.7K0.03%00.0%Unchanged
Systematic Financial Management LP1,660$429.6K0.01%00.0%Unchanged
Trust Asset Management LLC1,662$430.1K0.04%00.0%Unchanged
Choate Investment Advisors1,663$430.3K0.01%−60−3.5%Reduced