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BIIB Insider Trading

Insider Ownership Percentage: 0.18%
Insider Buying (Last 12 Months): $585.09
Insider Selling (Last 12 Months): $1,034,814.55

Biogen Insider Trading History Chart

This chart shows the insider buying and selling history at Biogen by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Biogen Share Price & Price History

Current Price: $187.21
Price Change: ▲ Price Increase of +0.15 (0.08%)
As of 05/4/2026 04:00 PM ET

This chart shows the closing price history over time for BIIB up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Biogen Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
2/12/2026Nicole MurphyInsiderBuy3$195.03$585.0919,611View SEC Filing Icon  
2/9/2026Priya SinghalInsiderSell2,660$199.83$531,547.808,043View SEC Filing Icon  
2/2/2026Priya SinghalInsiderSell748$179.30$134,116.406,271View SEC Filing Icon  
9/2/2025Priya SinghalInsiderSell517$133.55$69,045.355,772View SEC Filing Icon  
7/8/2025Rachid IzzarInsiderSell2,223$135.00$300,105.006,330View SEC Filing Icon  
3/7/2025Stephen A SherwinDirectorSell8,760$150.02$1,314,175.2011,318View SEC Filing Icon  
9/3/2024Priya SinghalInsiderSell431$204.22$88,018.825,316View SEC Filing Icon  
4/2/2024Priya SinghalInsiderSell93$213.09$19,817.374,886View SEC Filing Icon  
2/22/2024Priya SinghalInsiderSell262$221.23$57,962.264,886View SEC Filing Icon  
2/16/2024Priya SinghalInsiderSell108$221.49$23,920.925,148View SEC Filing Icon  
2/15/2024Eric K. RowinskyDirectorBuy455$222.54$101,255.7020,629View SEC Filing Icon  
2/12/2024Priya SinghalInsiderSell419$239.45$100,329.554,516View SEC Filing Icon  
12/11/2023Priya SinghalInsiderSell110$248.00$27,280.003,464View SEC Filing Icon  
9/5/2023Priya SinghalInsiderSell431$269.43$116,124.333,354View SEC Filing Icon  
7/3/2023Priya SinghalInsiderSell81$282.87$22,912.472,924View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Biogen (NASDAQ:BIIB)

87.93% of Biogen stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at BIIB by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Biogen Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/4/2026Canal Insurance CO20,000$3.67M0.8%N/A0.014%Search for SEC Filing on Google Icon
5/4/2026Emerald Mutual Fund Advisers Trust3,117$0.57M0.0%+26.5%0.002%Search for SEC Filing on Google Icon
5/4/2026Legacy Capital Group California Inc.2,901$0.53M0.2%N/A0.002%Search for SEC Filing on Google Icon
5/4/2026Empirical Financial Services LLC d.b.a. Empirical Wealth Management2,751$0.50M0.0%+24.0%0.002%Search for SEC Filing on Google Icon
5/4/2026State of Michigan Retirement System43,003$7.88M0.0%-0.2%0.029%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.187,059$34.29M0.0%+1.6%0.127%Search for SEC Filing on Google Icon
5/4/2026Chicago Partners Investment Group LLC4,598$0.87M0.0%+63.3%0.003%Search for SEC Filing on Google Icon
5/4/2026Triglav Investments D.O.O.12,428$2.28M0.2%+2.5%0.008%Search for SEC Filing on Google Icon
5/4/2026J. Safra Sarasin Holding AG4,998$0.92M0.0%-22.8%0.003%Search for SEC Filing on Google Icon
5/4/2026Tradewinds LLC.1,129$0.21M0.1%N/A0.001%Search for SEC Filing on Google Icon
5/4/2026Lifeworks Advisors LLC3,465$0.64M0.1%-11.9%0.002%Search for SEC Filing on Google Icon
5/4/2026Procyon Advisors LLC2,063$0.38M0.0%+47.7%0.001%Search for SEC Filing on Google Icon
5/1/2026Commonwealth of Pennsylvania Public School Empls Retrmt SYS34,186$6.27M0.0%+0.2%0.023%Search for SEC Filing on Google Icon
5/1/2026Citizens Financial Group Inc. RI2,346$0.43M0.0%+30.6%0.002%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp32,716$6M0.0%+255.1%0.022%Search for SEC Filing on Google Icon
5/1/2026Simplicity Wealth LLC2,149$0.39M0.0%+10.1%0.001%Search for SEC Filing on Google Icon
5/1/2026Candriam S.C.A.381,768$69.99M0.4%+15.5%0.260%Search for SEC Filing on Google Icon
5/1/2026Sequoia Financial Advisors LLC9,953$1.83M0.0%-5.8%0.007%Search for SEC Filing on Google Icon
4/30/2026Kestra Advisory Services LLC5,810$1.07M0.0%+28.9%0.004%Search for SEC Filing on Google Icon
4/30/2026Sumitomo Mitsui Trust Group Inc.356,291$65.32M0.0%-3.9%0.243%Search for SEC Filing on Google Icon
4/30/2026Resona Asset Management Co. Ltd.46,261$8.52M0.0%+2.4%0.032%Search for SEC Filing on Google Icon
4/30/2026Munich Reinsurance Co Stock Corp in Munich23,942$4.39M0.1%N/A0.016%Search for SEC Filing on Google Icon
4/30/2026Oregon Public Employees Retirement Fund16,841$3.09M0.0%+0.6%0.011%Search for SEC Filing on Google Icon
4/29/2026Aljian Capital Management LLC2,540$0.47M0.1%+5.2%0.002%Search for SEC Filing on Google Icon
4/29/2026Cairn Investment Group Inc.8,043$1.48M0.7%-0.7%0.005%Search for SEC Filing on Google Icon
4/29/2026Meitav Investment House Ltd.20,972$3.85M0.0%-37.3%0.014%Search for SEC Filing on Google Icon
4/29/2026Resonant Capital Advisors LLC1,874$0.34M0.0%+11.3%0.001%Search for SEC Filing on Google Icon
4/29/2026Swedbank AB289,840$53.14M0.1%+25.1%0.197%Search for SEC Filing on Google Icon
4/29/2026Integrated Advisors Network LLC1,767$0.32M0.0%-16.0%0.001%Search for SEC Filing on Google Icon
4/28/2026Collaborative Fund Advisors LLC1,327$0.24M0.2%N/A0.001%Search for SEC Filing on Google Icon
4/28/2026Kathmere Capital Management LLC6,643$1.22M0.1%+38.7%0.005%Search for SEC Filing on Google Icon
4/28/2026Whittier Trust Co.699$0.12M0.0%-8.7%0.000%Search for SEC Filing on Google Icon
4/28/2026Bogart Wealth LLC215$39K0.0%-57.8%0.000%Search for SEC Filing on Google Icon
4/28/2026DGS Capital Management LLC2,886$0.53M0.1%+32.3%0.002%Search for SEC Filing on Google Icon
4/28/2026V Square Quantitative Management LLC4,358$0.80M0.1%+5.8%0.003%Search for SEC Filing on Google Icon
4/28/2026QRG Capital Management Inc.33,002$6.05M0.1%+769.6%0.022%Search for SEC Filing on Google Icon
4/27/2026HB Wealth Management LLC5,681$1.04M0.0%+21.6%0.004%Search for SEC Filing on Google Icon
4/27/2026PFG Investments LLC1,568$0.29M0.0%N/A0.001%Search for SEC Filing on Google Icon
4/27/2026World Investment Advisors6,082$1.12M0.0%-9.7%0.004%Search for SEC Filing on Google Icon
4/27/2026Turtle Creek Wealth Advisors LLC1,546$0.28M0.0%+5.7%0.001%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System111,303$20.41M0.0%+0.1%0.076%Search for SEC Filing on Google Icon
4/27/2026Private Advisor Group LLC4,649$0.85M0.0%-23.9%0.003%Search for SEC Filing on Google Icon
4/27/2026Leonteq Securities AG26,454$4.85M0.2%-5.4%0.018%Search for SEC Filing on Google Icon
4/27/2026Fjarde AP Fonden Fourth Swedish National Pension Fund39,303$7.21M0.0%+48.0%0.027%Search for SEC Filing on Google Icon
4/27/2026Proathlete Wealth Management LLC1,944$0.36M0.1%-7.8%0.001%Search for SEC Filing on Google Icon
4/27/2026Elevation Point Wealth Partners LLC3,724$0.68M0.0%N/A0.003%Search for SEC Filing on Google Icon
4/27/2026Platform Technology Partners1,201$0.22M0.0%N/A0.001%Search for SEC Filing on Google Icon
4/27/2026Fideuram Intesa Sanpaolo Private Banking S.P.A.15,973$2.93M0.1%-15.4%0.011%Search for SEC Filing on Google Icon
4/25/2026Keybank National Association OH8,834$1.62M0.0%+4.9%0.006%Search for SEC Filing on Google Icon
4/24/2026Root Financial Partners LLC341$63K0.0%+84.3%0.000%Search for SEC Filing on Google Icon
4/24/2026USS Investment Management Ltd37,217$6.82M0.0%+8.8%0.025%Search for SEC Filing on Google Icon
4/24/2026IFM Investors Pty Ltd38,521$7.06M0.1%-3.3%0.026%Search for SEC Filing on Google Icon
4/23/2026Premier Path Wealth Partners LLC3,523$0.65M0.1%-38.5%0.002%Search for SEC Filing on Google Icon
4/23/2026Forum Financial Management LP1,890$0.35M0.0%-67.9%0.001%Search for SEC Filing on Google Icon
4/23/2026Lansforsakringar Fondforvaltning AB publ 47,807$8.76M0.0%-1.9%0.033%Search for SEC Filing on Google Icon
4/22/2026Adams Diversified Equity Fund Inc.100,300$18.39M0.6%+126.4%0.068%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA913,328$168.27M0.2%-3.6%0.622%Search for SEC Filing on Google Icon
4/22/2026Sterling Capital Management LLC5,136$0.94M0.0%-40.7%0.003%Search for SEC Filing on Google Icon
4/22/2026Econ Financial Services Corp4,397$0.81M0.4%+11.4%0.003%Search for SEC Filing on Google Icon
4/21/2026WMS Group LLC1,311$0.24M0.3%-15.4%0.001%Search for SEC Filing on Google Icon
4/21/2026Poehling Capital Management INC.1,144$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
4/21/2026Aaron Wealth Advisors LLC1,185$0.22M0.0%N/A0.001%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System7,500$1.38M0.0%N/A0.005%Search for SEC Filing on Google Icon
4/21/2026Contravisory Investment Management Inc.44,677$8.19M1.7%N/A0.030%Search for SEC Filing on Google Icon
4/20/2026Ritholtz Wealth Management34,943$6.41M0.1%+23.1%0.024%Search for SEC Filing on Google Icon
4/20/2026Friedenthal Financial5,930$1.09M0.5%N/A0.004%Search for SEC Filing on Google Icon
4/20/2026Blue Trust Inc.560$0.10M0.0%-33.3%0.000%Search for SEC Filing on Google Icon
4/20/2026Davis Investment Partners LLC3,580$0.66M0.2%-18.2%0.002%Search for SEC Filing on Google Icon
4/20/2026OP Asset Management Ltd15,263$2.80M0.0%N/A0.010%Search for SEC Filing on Google Icon
4/20/2026Banque Cantonale Vaudoise7,928$1.45M0.1%+129.0%0.005%Search for SEC Filing on Google Icon
4/20/2026Assenagon Asset Management S.A.6,969$1.28M0.0%+12.4%0.005%Search for SEC Filing on Google Icon
4/18/2026Cidel Asset Management Inc.2,129$0.39M0.0%+9.8%0.001%Search for SEC Filing on Google Icon
4/17/2026Krilogy Financial LLC7,590$1.34M0.0%-1.5%0.005%Search for SEC Filing on Google Icon
4/17/2026AGP Franklin LLC2,073$0.38M0.2%N/A0.001%Search for SEC Filing on Google Icon
4/17/2026PKO Investment Management Joint Stock Co1,300$0.24M0.0%-35.0%0.001%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC195,668$35.87M0.0%+6.4%0.133%Search for SEC Filing on Google Icon
4/16/2026Evolve Private Wealth LLC3,536$0.65M0.0%+11.1%0.002%Search for SEC Filing on Google Icon
4/16/2026Guardian Investment Management5,500$1.01M0.8%+1.9%0.004%Search for SEC Filing on Google Icon
4/16/2026Quotient Wealth Partners LLC1,097$0.20M0.0%N/A0.001%Search for SEC Filing on Google Icon
4/16/2026AEGON ASSET MANAGEMENT UK Plc258,735$47.42M0.6%-0.5%0.176%Search for SEC Filing on Google Icon
4/16/2026E. Ohman J or Asset Management AB4,819$0.88M0.0%-15.7%0.003%Search for SEC Filing on Google Icon
4/16/2026BI Asset Management Fondsmaeglerselskab A S7,886$1.45M0.0%+41.6%0.005%Search for SEC Filing on Google Icon
4/16/2026Diversified Trust Co1,266$0.23M0.0%N/A0.001%Search for SEC Filing on Google Icon
3/17/2026Rockefeller Capital Management L.P.5,007$0.88M0.0%-3.2%0.003%Search for SEC Filing on Google Icon
3/13/2026World Investment Advisors6,739$1.19M0.0%+4.9%0.005%Search for SEC Filing on Google Icon
3/9/2026Corient Private Wealth LLC41,149$7.25M0.0%+18.0%0.028%Search for SEC Filing on Google Icon
3/6/2026Hsbc Holdings PLC503,832$88.84M0.1%+11.1%0.343%Search for SEC Filing on Google Icon
3/4/2026Pure Financial Advisors LLC1,173$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
3/4/2026SHP Wealth Management223$39K0.0%N/A0.000%Search for SEC Filing on Google Icon
3/3/2026Employees Provident Fund Board704,196$123.93M0.9%N/A0.480%Search for SEC Filing on Google Icon
3/3/2026WMS Group LLC1,550$0.27M0.3%N/A0.001%Search for SEC Filing on Google Icon
3/3/2026Bank of Hawaii6,667$1.17M0.1%N/A0.005%Search for SEC Filing on Google Icon
3/2/2026Reflection Asset Management141$25K0.0%N/A0.000%Search for SEC Filing on Google Icon
2/27/2026Groupama Asset Managment8,431$1.48M0.0%-1.1%0.006%Search for SEC Filing on Google Icon
2/24/2026DGS Capital Management LLC2,182$0.38M0.1%+27.8%0.001%Search for SEC Filing on Google Icon
2/24/2026SG Trading Solutions LLC1,467$0.26M0.1%N/A0.001%Search for SEC Filing on Google Icon
2/23/2026MV Capital Management Inc.194$34K0.0%N/A0.000%Search for SEC Filing on Google Icon
2/20/2026Kovitz Investment Group Partners LLC21,133$3.72M0.1%-7.9%0.014%Search for SEC Filing on Google Icon
2/19/2026T. Rowe Price Investment Management Inc.1,170,907$206.07M0.1%+9.7%0.798%Search for SEC Filing on Google Icon
2/19/2026Compound Planning Inc.3,278$0.58M0.0%N/A0.002%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Biogen logo
Biogen Inc. discovers, develops, manufactures, and delivers therapies for treating neurological and neurodegenerative diseases in the United States, Europe, Germany, Asia, and internationally. The company provides TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA for multiple sclerosis (MS); SPINRAZA for spinal muscular atrophy; ADUHELM to treat Alzheimer's disease; FUMADERM to treat plaque psoriasis; BENEPALI, an etanercept biosimilar referencing ENBREL; IMRALDI, an adalimumab biosimilar referencing HUMIRA; FLIXABI, an infliximab biosimilar referencing REMICADE; and BYOOVIZ, a ranibizumab biosimilar referencing LUCENTIS. It offers RITUXAN for treating non-Hodgkin's lymphoma, chronic lymphocytic leukemia (CLL), rheumatoid arthritis, two forms of ANCA-associated vasculitis, and pemphigus vulgaris; RITUXAN HYCELA for non-Hodgkin's lymphoma and CLL; GAZYVA to treat CLL and follicular lymphoma; OCREVUS for relapsing MS and primary progressive MS; LUNSUMIO to treat relapsed or refractory follicular lymphoma; glofitamab for non-Hodgkin's lymphoma; and other anti-CD20 therapies. In addition, the company is developing various products for the treatment of MS, Alzheimer's disease and dementia, neuromuscular disorders, Parkinson's disease and movement disorders, neuropsychiatry, genetic neurodevelopmental disorders, and biosimilars, which are under various stages of development. It has collaboration and license agreements with Acorda Therapeutics, Inc.; Alkermes Pharma Ireland Limited; Denali Therapeutics Inc.; Eisai Co., Ltd.; Genentech, Inc.; Neurimmune SubOne AG; Ionis Pharmaceuticals, Inc.; Samsung Bioepis Co., Ltd.; Sangamo Therapeutics, Inc.; and Sage Therapeutics, Inc., as well as collaboration with Fujirebio to potentially identify and develop blood-based biomarkers for tau pathology in the brain. The company was founded in 1978 and is headquartered in Cambridge, Massachusetts.
Read More on Biogen

Today's Range

Now: $187.21
Low: $185.44
High: $187.51

50 Day Range

MA: $184.52
Low: $172.34
High: $196.34

52 Week Range

Now: $187.21
Low: $115.25
High: $202.41

Volume

626,557 shs

Average Volume

1,325,228 shs

Market Capitalization

$27.64 billion

P/E Ratio

20.09

Dividend Yield

N/A

Beta

0.19

Who are the company insiders with the largest holdings of Biogen?

Biogen's top insider shareholders include:
  1. George A Scangos (CEO)
  2. George Scangos (CEO)
  3. Susan H Alexander (EVP)
  4. Robert W Pangia (Director)
  5. Alfred Sandrock (SVP)
  6. Paul J Clancy (VP)
  7. Eric K Rowinsky (Director)
  8. Caroline Dorsa (Director)
  9. Nicole Murphy (Insider)
  10. William Young (Director)
Learn More about top insider investors at Biogen.

Who are the major institutional investors of Biogen?

Biogen's top institutional investors include:
  1. Pictet Asset Management Holding SA — 0.62%
  2. Candriam S.C.A. — 0.26%
  3. Sumitomo Mitsui Trust Group Inc. — 0.24%
  4. Swedbank AB — 0.20%
  5. AEGON ASSET MANAGEMENT UK Plc — 0.18%
  6. SG Americas Securities LLC — 0.13%
Learn More about top institutional investors of Biogen stock.

Which major investors are selling Biogen stock?

Within the last quarter, BIIB stock was sold by these institutional investors:
  1. Pictet Asset Management Holding SA
  2. Sumitomo Mitsui Trust Group Inc.
  3. Meitav Investment House Ltd.
  4. Forum Financial Management LP
  5. Sterling Capital Management LLC
  6. Fideuram Intesa Sanpaolo Private Banking S.P.A.
  7. Premier Path Wealth Partners LLC
  8. Leonteq Securities AG
During the previous year, company insiders that have sold Biogen company stock include:
  1. Priya Singhal (Insider)
  2. Rachid Izzar (Insider)
Learn More investors selling Biogen stock.

Which major investors are buying Biogen stock?

During the last quarter, BIIB stock was bought by institutional investors including:
  1. Swedbank AB
  2. Adams Diversified Equity Fund Inc.
  3. Candriam S.C.A.
  4. Contravisory Investment Management Inc.
  5. QRG Capital Management Inc.
  6. Munich Reinsurance Co Stock Corp in Munich
  7. Fifth Third Bancorp
  8. OP Asset Management Ltd

Biogen Active Insiders

Michel Vounatsos
Michel Vounatsos (Age 63)
CEO
Brian S Posner
Brian S Posner (Age 63)
Director
Eric K Rowinsky
Eric K Rowinsky
Director
Stephen A Sherwin
Stephen A Sherwin
Director
Susan H Alexander
Susan H Alexander (Age 69)
EVP
Alfred Sandrock
Alfred Sandrock (Age 68)
insider
Priya Singhal
Priya Singhal
Insider
2 recent trades
Rachid Izzar
Rachid Izzar
Insider
Nicole Murphy
Nicole Murphy
Head of Pharmaceutical Operations and Technology
1 recent trades