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Livermore
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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, Q1 2024

Institutional positions in Biogen Inc. as of Mar 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
955
−41 vs. Q4 2023
Shares held
129.7M
+1.13M (+0.9%) vs. Q4 2023
Total value
$28.0B
−$5.30B (−15.9%) vs. Q4 2023
New holders
105
304 more added
Sold out
146
354 more reduced

9 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2024: 955 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 heldQ1 2024: $28.0B
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, Q1 2024

Shares, value and share of portfolio for each institution holding Biogen Inc.; share changes are against Q4 2023.

Institutions holding BIIB in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Dogwood Wealth Management LLC0$30.00%0Unchanged
American Capital Advisory, LLC0$170.00%0Unchanged
NVWM, LLC1$2160.00%+1New
WestEnd Advisors, LLC2$4310.00%00.0%Unchanged
Wolff Wiese Magana LLC2$4320.00%00.0%Unchanged
Piscataqua Savings Bank3$6460.00%+3New
Tfo-TDC, LLC3$6470.00%−1−25.0%Reduced
Kayne Anderson Rudnick Investment Management LLC3$6470.00%00.0%Unchanged
Wetzel Investment Advisors, Inc.4$7620.00%00.0%Unchanged
TFC Financial Management4$8630.00%+1+33.3%Added
Continuum Advisory, LLC4$8910.00%+4New
McClarren Financial Advisors, Inc.2$1.00K0.00%00.0%Unchanged
Financial Management Professionals, Inc.6$1.00K0.00%+6New
Avion Wealth2$1.00K0.00%+2New
Carolinas Wealth Consulting LLC5$1.08K0.00%−51−91.1%Reduced
Evermay Wealth Management LLC5$1.08K0.00%−1−16.7%Reduced
True Wealth Design, LLC5$1.08K0.00%+2+66.7%Added
USA Financial Portformulas Corp6$1.29K0.00%−36−85.7%Reduced
Fairman Group, LLC6$1.29K0.00%00.0%Unchanged
LRI Investments, LLC6$1.29K0.00%+6New
Cape Investment Advisory, Inc.7$1.51K0.00%00.0%Unchanged
Park Place Capital Corp7$1.51K0.00%+7New
Atwood & Palmer Inc8$1.62K0.00%−41,588−100.0%Reduced
Aspire Private Capital, LLC8$1.73K0.00%00.0%Unchanged
Aspect Partners, LLC9$1.94K0.00%00.0%Unchanged
Penserra Capital Management LLC12$2.00K0.00%−659−98.2%Reduced
Valley National Advisers Inc13$2.00K0.00%−3−18.8%Reduced
Sofos Investments, Inc.10$2.03K0.00%+5+100.0%Added
Byrne Asset Management LLC10$2.16K0.00%00.0%Unchanged
RFP Financial Group LLC10$2.16K0.00%+10New
Dunhill Financial, LLC11$2.31K0.00%−12−52.2%Reduced
Planning Capital Management Corp11$2.37K0.00%−25−69.4%Reduced
Hollencrest Capital Management13$2.80K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.13$2.80K0.00%−2−13.3%Reduced
Kozak & Associates, Inc.14$3.22K0.00%00.0%Unchanged
Fortis Group Advisors, LLC15$3.23K0.00%−15−50.0%Reduced
Tidemark, LLC15$3.23K0.00%00.0%Unchanged
Valued Wealth Advisors LLC15$3.23K0.00%+7+87.5%Added
Winch Advisory Services, LLC16$3.45K0.00%00.0%Unchanged
SOA Wealth Advisors, LLC.16$3.45K0.00%00.0%Unchanged
SJS Investment Consulting Inc.16$3.45K0.00%−1−5.9%Reduced
Cornerstone Planning Group LLC16$3.48K0.00%−58−78.4%Reduced
Plante Moran Financial Advisors, LLC17$3.67K0.00%−7−29.2%Reduced
Register Financial Advisors LLC19$4.10K0.00%+19New
First United Bank Trust20$4.31K0.00%00.0%Unchanged
Operose Advisors LLC20$4.31K0.00%00.0%Unchanged
Crewe Advisors LLC20$4.31K0.00%+20New
Sugarloaf Wealth Management, LLC22$4.74K0.00%00.0%Unchanged
Castleview Partners, LLC23$4.96K0.00%00.0%Unchanged
Abound Wealth Management23$4.96K0.00%+6+35.3%Added
AdvisorNet Financial, Inc24$5.17K0.00%−26−52.0%Reduced
DHJJ Financial Advisors, Ltd.24$5.18K0.00%00.0%Unchanged
Proequities, Inc.25$5.39K0.00%−41−62.1%Reduced
Raffa Wealth Management, LLC25$5.39K0.00%−6−19.4%Reduced
SRS Capital Advisors, Inc.25$5.39K0.00%+20+400.0%Added
Eagle Bay Advisors LLC26$5.61K0.00%+17+188.9%Added
Bruce G. Allen Investments, LLC27$5.82K0.00%−9−25.0%Reduced
Hantz Financial Services, Inc.26$6.00K0.00%00.0%Unchanged
Householder Group Estate & Retirement Specialist, LLC28$6.04K0.00%00.0%Unchanged
Bangor Savings Bank28$6.04K0.00%00.0%Unchanged
WealthCollab, LLC29$6.25K0.00%−7−19.4%Reduced
Tower View Investment Management & Research LLC29$6.25K0.00%00.0%Unchanged
Peoples Bank30$6.47K0.01%00.0%Unchanged
Barrett & Company, Inc.30$6.47K0.00%00.0%Unchanged
Gables Capital Management Inc.30$6.47K0.00%00.0%Unchanged
Meeder Asset Management Inc32$6.90K0.00%+32New
Dynamic Wealth Strategies, LLC33$7.00K0.01%00.0%Unchanged
FRG Family Wealth Advisors LLC33$7.09K0.00%+33New
AllSquare Wealth Management LLC33$7.12K0.00%00.0%Unchanged
Caldwell Sutter Capital, Inc.34$7.33K0.00%00.0%Unchanged
Johnson Financial Group, Inc.39$8.41K0.00%−46−54.1%Reduced
Tortoise Investment Management, LLC40$8.63K0.00%00.0%Unchanged
Private Wealth Management Group, LLC41$8.84K0.00%−30−42.3%Reduced
Pinnacle Bancorp, Inc.45$9.70K0.00%00.0%Unchanged
Anchor Investment Management, LLC45$9.70K0.00%+5+12.5%Added
West Oak Capital, LLC46$10.0K0.00%00.0%Unchanged
Raleigh Capital Management Inc.48$10.3K0.00%+18+60.0%Added
Stephenson National Bank & Trust48$10.3K0.00%+48New
Retirement Group, LLC49$10.6K0.00%−10−16.9%Reduced
McIlrath & Eck, LLC49$10.6K0.00%−1−2.0%Reduced
Chesapeake Asset Management LLC50$10.8K0.01%00.0%Unchanged
Tradewinds Capital Management, LLC50$10.8K0.00%00.0%Unchanged
Financial Freedom, LLC50$10.8K0.01%00.0%Unchanged
Hexagon Capital Partners LLC51$11.0K0.00%−67−56.8%Reduced
Ronald Blue Trust, Inc.51$11.0K0.00%−63−55.3%Reduced
Roble, Belko & Company, Inc50$11.0K0.00%00.0%Unchanged
GW&K Investment Management, LLC54$12.0K0.00%+4+8.0%Added
ZRC Wealth Management, LLC58$12.5K0.01%+28+93.3%Added
Rakuten Securities, Inc.59$12.7K0.01%+10+20.4%Added
JFS Wealth Advisors, LLC63$13.6K0.00%−16−20.3%Reduced
MV Capital Management, Inc.63$13.6K0.00%−8−11.3%Reduced
Prestige Wealth Management Group LLC63$13.6K0.00%−3−4.5%Reduced
Indiana Trust & Investment Management CO65$14.0K0.01%−80−55.2%Reduced
First Community Trust NA65$14.0K0.01%00.0%Unchanged
Future Financial Wealth Managment LLC65$14.0K0.01%+65New
EnRich Financial Partners LLC66$14.2K0.01%+66New
Venturi Wealth Management, LLC68$14.7K0.00%−1−1.4%Reduced
Versant Capital Management, Inc69$14.9K0.00%−3−4.2%Reduced
West Paces Advisors Inc.70$15.1K0.00%−1−1.4%Reduced
Grove Bank & Trust71$15.3K0.00%00.0%Unchanged