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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, 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: 1,047 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 20261,047$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, 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
SRS Capital Advisors, Inc.25$5.39K0.00%+20+400.0%Added
Raffa Wealth Management, LLC25$5.39K0.00%−6−19.4%Reduced
Proequities, Inc.25$5.39K0.00%−41−62.1%Reduced
DHJJ Financial Advisors, Ltd.24$5.18K0.00%00.0%Unchanged
AdvisorNet Financial, Inc24$5.17K0.00%−26−52.0%Reduced
Abound Wealth Management23$4.96K0.00%+6+35.3%Added
Castleview Partners, LLC23$4.96K0.00%00.0%Unchanged
Sugarloaf Wealth Management, LLC22$4.74K0.00%00.0%Unchanged
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
Register Financial Advisors LLC19$4.10K0.00%+19New
Plante Moran Financial Advisors, LLC17$3.67K0.00%−7−29.2%Reduced
Cornerstone Planning Group LLC16$3.48K0.00%−58−78.4%Reduced
SJS Investment Consulting Inc.16$3.45K0.00%−1−5.9%Reduced
Winch Advisory Services, LLC16$3.45K0.00%00.0%Unchanged
SOA Wealth Advisors, LLC.16$3.45K0.00%00.0%Unchanged
Valued Wealth Advisors LLC15$3.23K0.00%+7+87.5%Added
Fortis Group Advisors, LLC15$3.23K0.00%−15−50.0%Reduced
Tidemark, LLC15$3.23K0.00%00.0%Unchanged
Kozak & Associates, Inc.14$3.22K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.13$2.80K0.00%−2−13.3%Reduced
Hollencrest Capital Management13$2.80K0.00%00.0%Unchanged
Planning Capital Management Corp11$2.37K0.00%−25−69.4%Reduced
Dunhill Financial, LLC11$2.31K0.00%−12−52.2%Reduced
Byrne Asset Management LLC10$2.16K0.00%00.0%Unchanged
RFP Financial Group LLC10$2.16K0.00%+10New
Sofos Investments, Inc.10$2.03K0.00%+5+100.0%Added
Penserra Capital Management LLC12$2.00K0.00%−659−98.2%Reduced
Valley National Advisers Inc13$2.00K0.00%−3−18.8%Reduced
Aspect Partners, LLC9$1.94K0.00%00.0%Unchanged
Aspire Private Capital, LLC8$1.73K0.00%00.0%Unchanged
Atwood & Palmer Inc8$1.62K0.00%−41,588−100.0%Reduced
Cape Investment Advisory, Inc.7$1.51K0.00%00.0%Unchanged
Park Place Capital Corp7$1.51K0.00%+7New
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
Evermay Wealth Management LLC5$1.08K0.00%−1−16.7%Reduced
True Wealth Design, LLC5$1.08K0.00%+2+66.7%Added
Carolinas Wealth Consulting LLC5$1.08K0.00%−51−91.1%Reduced
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
Continuum Advisory, LLC4$8910.00%+4New
TFC Financial Management4$8630.00%+1+33.3%Added
Wetzel Investment Advisors, Inc.4$7620.00%00.0%Unchanged
Tfo-TDC, LLC3$6470.00%−1−25.0%Reduced
Kayne Anderson Rudnick Investment Management LLC3$6470.00%00.0%Unchanged
Piscataqua Savings Bank3$6460.00%+3New
Wolff Wiese Magana LLC2$4320.00%00.0%Unchanged
WestEnd Advisors, LLC2$4310.00%00.0%Unchanged
NVWM, LLC1$2160.00%+1New
American Capital Advisory, LLC0$170.00%0Unchanged
Dogwood Wealth Management LLC0$30.00%0Unchanged
Carmignac Gestion0$00.00%−361,395−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−317,302−100.0%Sold out
Lord, Abbett & Co. LLC0$00.00%−159,399−100.0%Sold out
LSV Asset Management0$00.00%−117,030−100.0%Sold out
Moore Capital Management, LP0$00.00%−90,000−100.0%Sold out
Vestal Point Capital, LP0$00.00%−75,000−100.0%Sold out
Brandywine Global Investment Management, LLC0$00.00%−70,041−100.0%Sold out
Mn Services Vermogensbeheer B.V.0$00.00%−67,208−100.0%Sold out
Capitolis Liquid Global Markets LLC0$00.00%−54,000−100.0%Sold out
Tri Locum Partners LP0$00.00%−45,814−100.0%Sold out
Caxton Associates LP0$00.00%−45,000−100.0%Sold out
Weiss Multi-Strategy Advisers LLC0$00.00%−34,696−100.0%Sold out
Saturn V Capital Management LLC0$00.00%−32,469−100.0%Sold out
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−25,000−100.0%Sold out
Summit Partners Public Asset Management, LLC0$00.00%−20,830−100.0%Sold out
Greenwood Capital Associates LLC0$00.00%−19,145−100.0%Sold out
GTS Securities LLC0$00.00%−15,981−100.0%Sold out
Abn Amro Investment Solutions0$00.00%−14,586−100.0%Sold out
Tredje AP-fonden0$00.00%−13,263−100.0%Sold out
Fred Alger Management, LLC0$00.00%−13,235−100.0%Sold out
Group One Trading, L.P.0$00.00%−12,786−100.0%Sold out
Power Corp of Canada0$00.00%−11,158−100.0%Sold out
Beck Bode, LLC0$00.00%−10,677−100.0%Sold out
Nippon Life Global Investors Americas, Inc.0$00.00%−6,630−100.0%Sold out
Cetera Advisor Networks LLC0$00.00%−6,320−100.0%Sold out
PDT Partners, LLC0$00.00%−6,125−100.0%Sold out
Summit Global Investments0$00.00%−6,088−100.0%Sold out
STRS Ohio0$00.00%−5,825−100.0%Sold out
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management0$00.00%−5,234−100.0%Sold out
Eaton Financial Holdings Company, LLC0$00.00%−5,062−100.0%Sold out
FDx Advisors, Inc.0$00.00%−4,396−100.0%Sold out
Atria Investments LLC0$00.00%−4,374−100.0%Sold out
Gotham Asset Management, LLC0$00.00%−3,684−100.0%Sold out
Cowen and Company, LLC0$00.00%−3,326−100.0%Sold out
Alhambra Investment Partners LLC0$00.00%−3,219−100.0%Sold out
Aigen Investment Management, LP0$00.00%−3,108−100.0%Sold out
Impax Asset Management Group plc0$00.00%−3,088−100.0%Sold out
Nomura Holdings Inc0$00.00%−2,924−100.0%Sold out
Kornitzer Capital Management Inc0$00.00%−2,075−100.0%Sold out
Camelot Portfolios, LLC0$00.00%−2,000−100.0%Sold out
Corton Capital Inc.0$00.00%−1,978−100.0%Sold out
Machina Capital S.A.S.0$00.00%−1,976−100.0%Sold out
AE Wealth Management LLC0$00.00%−2,014−100.0%Sold out
IFG Advisory, LLC0$00.00%−1,779−100.0%Sold out
Maven Securities LTD0$00.00%−1,709−100.0%Sold out