Skip to main content
Livermore
Livermore
ZHEN

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, 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: 1,046 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 20261,046$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, 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
Dogwood Wealth Management LLC0$60.00%0New
American Capital Advisory, LLC0$160.00%0New
Motco1$2590.00%−71−98.6%Reduced
Criterion Capital Advisors, LLC1$2590.00%+1New
Optiver Holding B.V.1$2590.00%+1New
Tucker Asset Management LLC1$2590.00%+1New
Lee Financial Co2$5180.00%−6−75.0%Reduced
Wolff Wiese Magana LLC2$5180.00%00.0%Unchanged
WestEnd Advisors, LLC2$5180.00%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC3$7760.00%00.0%Unchanged
TFC Financial Management3$7770.00%−3−50.0%Reduced
True Wealth Design, LLC3$7770.00%−1−25.0%Reduced
TSFG, LLC5$1.00K0.00%−4−44.4%Reduced
McClarren Financial Advisors, Inc.2$1.00K0.00%00.0%Unchanged
Wetzel Investment Advisors, Inc.4$1.00K0.00%+4New
Tfo-TDC, LLC4$1.03K0.00%−2−33.3%Reduced
Colonial Trust Advisors4$1.03K0.00%00.0%Unchanged
Jones Financial Companies LLLP4$1.03K0.00%+4New
SRS Capital Advisors, Inc.5$1.29K0.00%00.0%Unchanged
Sofos Investments, Inc.5$1.46K0.00%00.0%Unchanged
Evermay Wealth Management LLC6$1.55K0.00%+1+20.0%Added
Fairman Group, LLC6$1.55K0.00%+6New
Cape Investment Advisory, Inc.7$1.81K0.00%00.0%Unchanged
Fortitude Family Office, LLC7$1.81K0.00%+7New
Arlington Trust Co LLC7$1.81K0.00%+7New
Valued Wealth Advisors LLC8$2.06K0.00%+8New
Exchange Traded Concepts, LLC8$2.07K0.00%−4−33.3%Reduced
Aspire Private Capital, LLC8$2.07K0.00%00.0%Unchanged
Financial Perspectives, Inc8$2.07K0.00%00.0%Unchanged
Eagle Bay Advisors LLC9$2.33K0.00%00.0%Unchanged
Aspect Partners, LLC9$2.33K0.00%+9New
Northwest Financial Advisors9$2.33K0.00%+9New
Strategic Investment Solutions, Inc.10$2.59K0.00%+10New
Byrne Asset Management LLC10$2.62K0.00%−14−58.3%Reduced
Creative Financial Designs Inc12$3.10K0.00%00.0%Unchanged
Moisand Fitzgerald Tamayo, LLC12$3.11K0.00%+12New
Hollencrest Capital Management13$3.36K0.00%00.0%Unchanged
Kozak & Associates, Inc.14$3.45K0.00%−30−68.2%Reduced
EdgeRock Capital LLC15$3.66K0.00%+15New
DiNuzzo Private Wealth, Inc.15$3.88K0.00%+15New
Tidemark, LLC15$3.88K0.00%+15New
Valley National Advisers Inc16$4.00K0.00%+16New
SOA Wealth Advisors, LLC.16$4.14K0.00%00.0%Unchanged
Winch Advisory Services, LLC16$4.14K0.00%00.0%Unchanged
Impact Partnership Wealth, LLC17$4.40K0.00%−195−92.0%Reduced
Abound Wealth Management17$4.40K0.00%−8−32.0%Reduced
SJS Investment Consulting Inc.17$4.40K0.00%−5−22.7%Reduced
Operose Advisors LLC20$5.17K0.00%00.0%Unchanged
First United Bank Trust20$5.17K0.00%+20New
Smartleaf Asset Management LLC20$5.21K0.00%+20New
Garner Asset Management Corp22$5.23K0.00%+22New
Sugarloaf Wealth Management, LLC22$5.69K0.00%00.0%Unchanged
Dunhill Financial, LLC23$5.94K0.01%+23New
Annis Gardner Whiting Capital Advisors, LLC23$5.95K0.00%00.0%Unchanged
Castleview Partners, LLC23$5.95K0.00%00.0%Unchanged
Plante Moran Financial Advisors, LLC24$6.21K0.00%+7+41.2%Added
DHJJ Financial Advisors, Ltd.24$6.21K0.00%00.0%Unchanged
Hantz Financial Services, Inc.26$7.00K0.00%−40−60.6%Reduced
Householder Group Estate & Retirement Specialist, LLC28$7.00K0.00%00.0%Unchanged
Bangor Savings Bank28$7.25K0.00%00.0%Unchanged
ZRC Wealth Management, LLC30$7.71K0.00%00.0%Unchanged
Peoples Bank30$7.76K0.01%00.0%Unchanged
Barrett & Company, Inc.30$7.76K0.00%00.0%Unchanged
Gables Capital Management Inc.30$7.76K0.00%00.0%Unchanged
Raleigh Capital Management Inc.30$7.76K0.00%+5+20.0%Added
Fortis Group Advisors, LLC30$7.76K0.00%+15+100.0%Added
Tower View Investment Management & Research LLC29$8.00K0.00%00.0%Unchanged
Hartford Financial Management Inc.31$8.02K0.00%00.0%Unchanged
Raffa Wealth Management, LLC31$8.02K0.00%00.0%Unchanged
AllSquare Wealth Management LLC33$8.54K0.01%00.0%Unchanged
DAGCO, Inc.33$8.54K0.01%+33New
Dynamic Wealth Strategies, LLC33$8.54K0.01%+33New
Quintet Private Bank (Europe) S.A.34$8.78K0.00%00.0%Unchanged
Caldwell Sutter Capital, Inc.34$8.80K0.00%00.0%Unchanged
Larson Financial Group LLC36$9.32K0.00%00.0%Unchanged
Bruce G. Allen Investments, LLC36$9.32K0.01%+36New
Planning Capital Management Corp36$9.32K0.01%+36New
WealthCollab, LLC36$9.32K0.01%+36New
Tortoise Investment Management, LLC40$10.4K0.00%00.0%Unchanged
Anchor Investment Management, LLC40$10.4K0.00%00.0%Unchanged
CNB Bank40$10.4K0.01%00.0%Unchanged
Sound Income Strategies, LLC40$10.4K0.00%+40New
USA Financial Portformulas Corp42$10.9K0.00%−8,504−99.5%Reduced
West Oak Capital, LLC46$11.0K0.01%00.0%Unchanged
Pinnacle Bancorp, Inc.45$11.6K0.00%00.0%Unchanged
Frank, Rimerman Advisors LLC49$12.7K0.00%+49New
Rakuten Securities, Inc.49$12.7K0.01%+49New
Chesapeake Asset Management LLC50$12.9K0.01%00.0%Unchanged
AdvisorNet Financial, Inc50$12.9K0.00%−59−54.1%Reduced
Tradewinds Capital Management, LLC50$12.9K0.01%00.0%Unchanged
McIlrath & Eck, LLC50$12.9K0.00%00.0%Unchanged
Financial Freedom, LLC50$12.9K0.01%+50New
GW&K Investment Management, LLC50$13.0K0.00%+1+2.0%Added
Roble, Belko & Company, Inc50$13.0K0.00%00.0%Unchanged
Paloma Partners Management Co53$13.7K0.00%+53New
Truvestments Capital LLC55$14.2K0.01%00.0%Unchanged
Carolinas Wealth Consulting LLC56$14.5K0.00%00.0%Unchanged
Retirement Group, LLC59$15.3K0.01%00.0%Unchanged
Plato Investment Management Ltd64$16.6K0.02%+64New
O'Dell Group, LLC64$16.6K0.00%+64New