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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, 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: 1,046 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 20261,046$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 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
Pacific Center for Financial Services0$60.00%0Unchanged
American Capital Advisory, LLC0$100.00%0Unchanged
Activest Wealth Management1$1530.00%+1New
Parkworth Wealth Management, Inc.1$1530.00%+1New
WealthTrak Capital Management LLC1$1530.00%+1New
Ancora Advisors, LLC2$3060.00%−24−92.3%Reduced
WestEnd Advisors, LLC2$3060.00%00.0%Unchanged
MPWM Advisory Solutions, LLC2$3060.00%+2New
Winnow Wealth LLC3$4030.00%+3New
Valued Wealth Advisors LLC3$4590.00%−5−62.5%Reduced
TFC Financial Management3$4590.00%00.0%Unchanged
Gould Capital, LLC3$4590.00%+3New
Capital A Wealth Management, LLC3$4590.00%+3New
Stance Capital LLC3$4590.00%+3New
NVWM, LLC4$6120.00%+2+100.0%Added
Global Financial Private Client, LLC5$7650.00%−85−94.4%Reduced
Atwood & Palmer Inc5$7650.00%00.0%Unchanged
Evermay Wealth Management LLC5$7650.00%00.0%Unchanged
JFS Wealth Advisors, LLC6$9180.00%−45−88.2%Reduced
LRI Investments, LLC6$9180.00%−19−76.0%Reduced
SOA Wealth Advisors, LLC.6$9180.00%−6−50.0%Reduced
Fairman Group, LLC6$9180.00%00.0%Unchanged
Albion Financial Group6$9180.00%+6New
Proequities, Inc.7$9990.00%00.0%Unchanged
Coppell Advisory Solutions LLC7$1.05K0.00%+2+40.0%Added
CBIZ Investment Advisory Services, LLC7$1.07K0.00%+7New
Noble Wealth Management PBC7$1.07K0.00%+7New
Cranbrook Wealth Management, LLC7$1.07K0.00%00.0%Unchanged
WR Wealth Planners, LLC8$1.22K0.00%00.0%Unchanged
Eagle Bay Advisors LLC9$1.38K0.00%−17−65.4%Reduced
WPG Advisers, LLC9$1.38K0.00%+9New
Stonebridge Financial Group, LLC10$1.53K0.00%+10New
Bernard Wealth Management Corp.11$1.68K0.00%+11New
DHJJ Financial Advisors, Ltd.12$1.84K0.00%−6−33.3%Reduced
Carolinas Wealth Consulting LLC12$1.84K0.00%+10+500.0%Added
Kayne Anderson Rudnick Investment Management LLC12$1.84K0.00%+12New
Hollencrest Capital Management13$1.99K0.00%00.0%Unchanged
Cape Investment Advisory, Inc.13$1.99K0.00%+6+85.7%Added
E Fund Management (Hong Kong) Co., Ltd.10$2.00K0.00%+9+900.0%Added
CarsonAllaria Wealth Management, Ltd.15$2.29K0.00%00.0%Unchanged
Fortis Group Advisors, LLC15$2.29K0.00%00.0%Unchanged
Iron Horse Wealth Management, LLC15$2.29K0.00%+15New
Accredited Wealth Management, LLC15$2.29K0.00%+15New
Darwin Advisors, LLC16$2.45K0.00%00.0%Unchanged
Wolff Wiese Magana LLC16$2.45K0.00%−29−64.4%Reduced
Winch Advisory Services, LLC16$2.45K0.00%00.0%Unchanged
Strategic Investment Solutions, Inc.10$2.59K0.00%00.0%Unchanged
Ameriflex Group, Inc.18$2.59K0.00%+18New
Plante Moran Financial Advisors, LLC17$2.60K0.00%−20−54.1%Reduced
Harbor Investment Advisory, LLC18$2.75K0.00%−74−80.4%Reduced
NewSquare Capital LLC18$2.75K0.00%+18New
Aster Capital Management (DIFC) Ltd18$2.75K0.00%+18New
Avion Wealth21$3.00K0.00%+9+75.0%Added
First United Bank Trust20$3.06K0.00%00.0%Unchanged
Sierra Ocean, LLC20$3.06K0.00%+20New
Abound Wealth Management21$3.21K0.00%00.0%Unchanged
Brown Shipley& Co Ltd22$3.36K0.00%−26−54.2%Reduced
Sugarloaf Wealth Management, LLC22$3.36K0.00%00.0%Unchanged
Cornerstone Planning Group LLC23$3.42K0.00%+14+155.6%Added
Bruce G. Allen Investments, LLC23$3.52K0.00%−14−37.8%Reduced
Clear Street Markets LLC24$3.67K0.00%−476−95.2%Reduced
Raffa Wealth Management, LLC25$3.82K0.00%00.0%Unchanged
Consultiva Wealth Management, Corp.25$3.82K0.02%+25New
University of Illinois Foundation25$3.82K0.00%+25New
Roble, Belko & Company, Inc25$4.00K0.00%−25−50.0%Reduced
Bangor Savings Bank28$4.28K0.00%00.0%Unchanged
Zions Bancorporation, N.A.28$4.28K0.00%+2+7.7%Added
Lavaca Capital LLC28$4.28K0.00%+28New
Bellwether Advisors, LLC28$4.28K0.00%+28New
Sachetta, LLC29$4.43K0.00%−37−56.1%Reduced
Tower View Investment Management & Research LLC29$4.43K0.00%00.0%Unchanged
Whipplewood Advisors, LLC30$4.59K0.00%+30New
ZRC Wealth Management, LLC30$4.59K0.00%−28−48.3%Reduced
Barrett & Company, Inc.30$4.59K0.00%00.0%Unchanged
UMA Financial Services, Inc.30$4.59K0.00%+30New
Minot DeBlois Advisors LLC32$4.89K0.00%+32New
AllSquare Wealth Management LLC33$5.05K0.00%00.0%Unchanged
Caldwell Sutter Capital, Inc.34$5.20K0.00%00.0%Unchanged
Rosenberg Matthew Hamilton35$5.35K0.00%−9−20.5%Reduced
Prestige Wealth Management Group LLC35$5.35K0.00%−4−10.3%Reduced
Stephenson National Bank & Trust36$5.50K0.00%−41−53.2%Reduced
Johnson Financial Group, Inc.39$5.61K0.00%−8−17.0%Reduced
Hexagon Capital Partners LLC37$5.66K0.00%−7−15.9%Reduced
Coastline Trust Co37$5.66K0.00%−3−7.5%Reduced
DiNuzzo Private Wealth, Inc.37$5.66K0.00%−7−15.9%Reduced
Wood Tarver Financial Group, LLC44$6.00K0.00%+44New
Bank Julius Baer & Co. Ltd, Zurich36$6.10K0.00%+2+5.9%Added
Tortoise Investment Management, LLC40$6.12K0.00%00.0%Unchanged
Anchor Investment Management, LLC40$6.12K0.00%00.0%Unchanged
Avalon Trust Co42$6.42K0.00%+42New
McIlrath & Eck, LLC43$6.53K0.00%00.0%Unchanged
Indiana Trust & Investment Management CO45$6.88K0.00%00.0%Unchanged
West Oak Capital, LLC45$6.90K0.00%00.0%Unchanged
Crews Bank & Trust46$7.03K0.00%+46New
Red Tortoise LLC48$7.34K0.00%+20+71.4%Added
Bell Investment Advisors, Inc50$7.65K0.00%−30−37.5%Reduced
Tradewinds Capital Management, LLC50$7.65K0.00%00.0%Unchanged
Financial Freedom, LLC50$7.65K0.00%00.0%Unchanged
Millstone Evans Group, LLC50$7.65K0.01%+50New
Synergy Investment Management, LLC50$7.65K0.00%+50New