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ETON Insider Trading

Insider Ownership Percentage: 16.49%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $4,853,920.72

Eton Pharmaceuticals Insider Trading History Chart

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

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Eton Pharmaceuticals Share Price & Price History

Current Price: $64.76
Price Change: ▲ Price Increase of +1.29 (2.03%)
As of 08/24/2026 10:19 AM ET

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

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Days: 30 | 90 | 365

Eton Pharmaceuticals Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/17/2026Jennifer Mckie AdamsDirectorSell50,000$32.48$1,624,000.0050,000View SEC Filing Icon  
5/27/2026David KrempaInsiderSell19,679$31.47$619,298.1325,249View SEC Filing Icon  
5/26/2026David KrempaInsiderSell37,524$31.49$1,181,630.7625,249View SEC Filing Icon  
5/22/2026David KrempaInsiderSell42,797$33.39$1,428,991.8325,249View SEC Filing Icon  
8/20/2025James R. GruberCFOSell2,631$16.02$42,148.62204,753View SEC Filing Icon  
8/19/2025James R. GruberCFOSell39,082$16.16$631,565.12205,299View SEC Filing Icon  
6/16/2025David KrempaInsiderSell10,223$14.73$150,584.79612,646View SEC Filing Icon  
6/13/2025David KrempaInsiderSell6,800$14.77$100,436.00622,869View SEC Filing Icon  
6/12/2025David KrempaInsiderSell16,977$14.92$253,296.84629,669View SEC Filing Icon  
10/7/2024Opaleye Management Inc.Major ShareholderBuy11,248$7.22$81,210.562,730,000View SEC Filing Icon  
10/4/2024Opaleye Management Inc.Major ShareholderBuy16,852$6.77$114,088.042,720,000View SEC Filing Icon  
9/10/2024Opaleye Management Inc.Major ShareholderBuy57,500$4.65$267,375.002,660,000View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Eton Pharmaceuticals (NASDAQ:ETON)

27.86% of Eton Pharmaceuticals 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 ETON by year and by quarter.

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Eton Pharmaceuticals Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/20/2026Sigma Planning Corp30,000$1.09M0.0%N/A0.105%Search for SEC Filing on Google Icon
8/20/2026Northwestern Mutual Wealth Management Co.5,625$0.20M0.0%-25.0%0.020%Search for SEC Filing on Google Icon
8/19/2026Toth Financial Advisory Corp1,200$43K0.0%N/A0.004%Search for SEC Filing on Google Icon
8/19/2026Navellier & Associates Inc.18,010$0.65M0.1%N/A0.066%Search for SEC Filing on Google Icon
8/19/2026Hsbc Holdings PLC40,974$1.53M0.0%N/A0.150%Search for SEC Filing on Google Icon
8/19/2026Wellington Management Group LLP76,103$2.76M0.0%+8.5%0.278%Search for SEC Filing on Google Icon
8/19/2026Nantahala Capital Management LLC1,175,951$42.57B1.4%N/A4.293%Search for SEC Filing on Google Icon
8/18/2026Cannell Capital LLC170,747$6.18B4.1%N/A0.623%Search for SEC Filing on Google Icon
8/18/2026Jefferies Financial Group Inc.34,027$1.23M0.0%N/A0.124%Search for SEC Filing on Google Icon
8/17/2026Panoramic Capital LLC208,192$7.54M3.2%N/A0.760%Search for SEC Filing on Google Icon
8/17/2026Pillsbury Lake Capital LLC387,157$14.02B3.8%N/A1.413%Search for SEC Filing on Google Icon
8/17/2026Bank of America Corp DE142,257$5.15M0.0%N/A0.519%Search for SEC Filing on Google Icon
8/15/2026Man Group plc16,152$0.59M0.0%N/A0.059%Search for SEC Filing on Google Icon
8/14/2026Hsbc Holdings PLC40,974$1.53M0.0%N/A0.150%Search for SEC Filing on Google Icon
8/14/2026PDT Partners LLC14,891$0.54M0.0%N/A0.054%Search for SEC Filing on Google Icon
8/14/2026Canada Pension Plan Investment Board7,900$0.29M0.0%N/A0.029%Search for SEC Filing on Google Icon
8/14/2026Legal & General Group Plc7,131$0.26M0.0%N/A0.026%Search for SEC Filing on Google Icon
8/14/2026The Manufacturers Life Insurance Company 6,996$0.25M0.0%N/A0.026%Search for SEC Filing on Google Icon
8/13/2026Connor Clark & Lunn Investment Management Ltd.13,150$0.48M0.0%N/A0.048%Search for SEC Filing on Google Icon
8/13/2026Bank of Nova Scotia17,200$0.62M0.0%N/A0.063%Search for SEC Filing on Google Icon
8/12/2026Northwestern Mutual Wealth Management Co.5,625$0.20M0.0%N/A0.021%Search for SEC Filing on Google Icon
8/12/2026Quantbot Technologies LP4,550$0.17M0.0%N/A0.017%Search for SEC Filing on Google Icon
8/7/2026BlackRock Inc.1,895,833$68.63M0.0%N/A6.922%Search for SEC Filing on Google Icon
8/7/2026Deutsche Bank AG26,522$0.96M0.0%N/A0.097%Search for SEC Filing on Google Icon
8/7/2026Persistent Asset Partners Ltd2,493$90K0.0%N/A0.009%Search for SEC Filing on Google Icon
8/6/2026Bank of New York Mellon Corp118,249$4.28M0.0%N/A0.432%Search for SEC Filing on Google Icon
8/6/2026State of Wyoming2,950$0.11M0.0%N/A0.011%Search for SEC Filing on Google Icon
8/3/2026Walleye Capital LLC86,249$3.12M0.0%N/A0.315%Search for SEC Filing on Google Icon
7/10/2026Wasatch Advisors LP92,742$3.36M0.0%N/A0.339%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE144,367$3.56M0.0%+37.8%0.527%Search for SEC Filing on Google Icon
5/18/2026EcoR1 Capital LLC2,171,938$53.60M2.3%+7.0%7.930%Search for SEC Filing on Google Icon
5/14/2026Renaissance Technologies LLC163,321$4.03M0.0%-20.6%0.597%Search for SEC Filing on Google Icon
5/14/2026Aristides Capital LLC186,041$4.59M0.8%+15.2%0.680%Search for SEC Filing on Google Icon
5/14/2026Bank of Nova Scotia15,000$0.37M0.0%N/A0.055%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.58,034$1.43M0.0%N/A0.212%Search for SEC Filing on Google Icon
5/14/2026Walleye Capital LLC81,963$2.02M0.0%N/A0.300%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming9,498$0.23M0.0%+16.4%0.035%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp111,255$2.75M0.0%-12.9%0.407%Search for SEC Filing on Google Icon
4/30/2026Granite Investment Partners LLC8,479$0.21M0.0%N/A0.031%Search for SEC Filing on Google Icon
3/3/2026Caitong International Asset Management Co. Ltd2,939$50K0.0%N/A0.011%Search for SEC Filing on Google Icon
2/26/2026Aristides Capital LLC161,436$2.73M0.4%-3.7%0.602%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.19,691$0.33M0.0%+46.1%0.073%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd32,527$0.55M0.0%+33.3%0.121%Search for SEC Filing on Google Icon
2/18/2026Wellington Management Group LLP81,201$1.37M0.0%-8.0%0.303%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC79,331$1.34M0.0%+400.1%0.296%Search for SEC Filing on Google Icon
2/18/2026Man Group plc10,473$0.18M0.0%-17.2%0.039%Search for SEC Filing on Google Icon
2/18/2026Bridgeway Capital Management LLC84,020$1.42M0.0%-22.9%0.313%Search for SEC Filing on Google Icon
2/17/2026Jump Financial LLC10,551$0.18M0.0%N/A0.039%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD15,369$0.26M0.0%+13.6%0.057%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.49,694$0.84M0.0%-9.4%0.185%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board24,615$0.42M0.0%N/A0.092%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC13,482$0.23M0.0%-77.4%0.050%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC51,448$0.87M0.0%+39.8%0.192%Search for SEC Filing on Google Icon
2/16/2026Bridge City Capital LLC18,600$0.32M0.1%+11.6%0.069%Search for SEC Filing on Google Icon
2/13/2026State Street Corp501,925$8.49M0.0%+14.5%1.871%Search for SEC Filing on Google Icon
2/13/2026Caitong International Asset Management Co. Ltd2,600$44K0.1%N/A0.010%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN28,293$0.48M0.0%+69.3%0.105%Search for SEC Filing on Google Icon
2/12/2026Aristides Capital LLC161,436$2.73M0.5%-3.7%0.602%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC205,700$3.48M0.0%-36.6%0.767%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG18,249$0.31M0.0%+4.9%0.068%Search for SEC Filing on Google Icon
2/11/2026Los Angeles Capital Management LLC14,631$0.27M0.0%N/A0.055%Search for SEC Filing on Google Icon
2/11/2026State of Wyoming8,161$0.14M0.0%+50.0%0.030%Search for SEC Filing on Google Icon
2/10/2026Anchor Capital Advisors LLC40,668$0.69M0.0%+10.6%0.152%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.196,263$3.32M0.0%+3.2%0.732%Search for SEC Filing on Google Icon
2/10/2026Thompson Siegel & Walmsley LLC408,541$6.91M0.1%-2.4%1.523%Search for SEC Filing on Google Icon
2/10/2026BNP Paribas Financial Markets277,458$4.69M0.0%+20.7%1.035%Search for SEC Filing on Google Icon
2/10/2026Intech Investment Management LLC12,421$0.21M0.0%+11.1%0.046%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC565,051$9.56M0.0%-1.6%2.107%Search for SEC Filing on Google Icon
2/9/2026Jefferies Financial Group Inc.118,300$2M0.0%+33.8%0.441%Search for SEC Filing on Google Icon
2/3/2026Lumbard & Kellner LLC174,944$2.96M1.0%-0.8%0.652%Search for SEC Filing on Google Icon
1/29/2026UBS Group AG126,674$2.14M0.0%-42.5%0.472%Search for SEC Filing on Google Icon
1/29/2026China Universal Asset Management Co. Ltd.4,370$74K0.0%N/A0.016%Search for SEC Filing on Google Icon
1/27/2026Juncture Wealth Strategies LLC18,996$0.32M0.1%+12.0%0.071%Search for SEC Filing on Google Icon
1/23/2026State of Alaska Department of Revenue6,943$0.12M0.0%+388.6%0.026%Search for SEC Filing on Google Icon
1/23/2026Westside Investment Management Inc.470,940$7.96M1.3%-0.3%1.756%Search for SEC Filing on Google Icon
1/9/2026SG Americas Securities LLC6,471$0.11M0.0%N/A0.024%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.351,417$7.64M0.0%+44.9%1.310%Search for SEC Filing on Google Icon
11/17/2025Oberweis Asset Management Inc.192,360$4.18M0.2%N/A0.717%Search for SEC Filing on Google Icon
11/17/2025PharVision Advisers LLC10,535$0.23M0.1%N/A0.039%Search for SEC Filing on Google Icon
11/17/2025XTX Topco Ltd24,399$0.53M0.0%N/A0.091%Search for SEC Filing on Google Icon
11/17/2025Voleon Capital Management LP10,950$0.24M0.0%N/A0.041%Search for SEC Filing on Google Icon
11/17/2025Quarry LP1,700$37K0.0%N/A0.006%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC41,873$0.91M0.1%-4.0%0.156%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC15,862$0.35M0.0%N/A0.059%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.12,007$0.26M0.0%-14.5%0.045%Search for SEC Filing on Google Icon
11/17/2025Divisadero Street Capital Management LP298,000$6.48M0.3%-40.1%1.111%Search for SEC Filing on Google Icon
11/17/2025Cannell Capital LLC455,405$9.90M1.5%+17.3%1.698%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE74,657$1.62M0.0%+102.2%0.278%Search for SEC Filing on Google Icon
11/17/2025Alliancebernstein L.P.9,600$0.21M0.0%N/A0.036%Search for SEC Filing on Google Icon
11/17/2025Apis Capital Advisors LLC117,600$2.56M0.6%+10.9%0.438%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.87,082$1.89M0.0%-3.7%0.325%Search for SEC Filing on Google Icon
11/14/2025Man Group plc12,649$0.28M0.0%-46.8%0.047%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP286,421$6.22M0.0%+33.5%1.068%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC109,020$2.37M0.1%-19.4%0.406%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC59,645$1.30M0.0%-36.4%0.222%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG220,361$4.79M0.0%+3.7%0.822%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets229,790$4.99M0.0%+162.0%0.857%Search for SEC Filing on Google Icon
11/13/2025WINTON GROUP Ltd35,304$0.77M0.0%N/A0.132%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.54,865$1.19M0.0%+202.9%0.205%Search for SEC Filing on Google Icon
11/13/2025Jefferies Financial Group Inc.88,440$1.92M0.0%N/A0.330%Search for SEC Filing on Google Icon
Data available starting January 2016

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Eton Pharmaceuticals logo
Eton Pharmaceuticals, Inc., a specialty pharmaceutical company, focuses on developing, acquiring, and commercializing pharmaceutical products for rare diseases. The company offers ALKINDI SPRINKLE, a replacement therapy for adrenocortical insufficiency in children under 17 years of age; Carglumic Acid for the treatment of acute and chronic hyperammonemia due to N-acetylglutamate Synthase deficiency; Betaine Anhydrous for the treatment of homocystinuria; and Nitisinone for the treatment of tyrosinemia type 1. It also provides Zeneo hydrocortisone autoinjector for the treatment of adrenal crisis. Eton Pharmaceuticals, Inc. was incorporated in 2017 and is based in Deer Park, Illinois.
Read More on Eton Pharmaceuticals

Today's Range

Now: $64.76
Low: $62.90
High: $64.40

50 Day Range

MA: $42.16
Low: $32.15
High: $63.47

52 Week Range

Now: $64.76
Low: $14.27
High: $64.40

Volume

117,668 shs

Average Volume

420,370 shs

Market Capitalization

$1.85 billion

P/E Ratio

170.38

Dividend Yield

N/A

Beta

0.86

Who are the company insiders with the largest holdings of Eton Pharmaceuticals?

Eton Pharmaceuticals' top insider shareholders include:
  1. Opaleye Management Inc (Major Shareholder)
  2. Harrow Health, Inc (Major Shareholder)
  3. Sean Brynjelsen (CEO)
  4. David Krempa (Insider)
  5. James R Gruber (CFO)
  6. Jennifer Mckie Adams (Director)
  7. Charles J Casamento (Director)
  8. Pharmaceutical Co Ltd Takeda (Major Shareholder)
  9. William Wilson Troutman (CFO)
Learn More about top insider investors at Eton Pharmaceuticals.

Who are the major institutional investors of Eton Pharmaceuticals?

Eton Pharmaceuticals' top institutional shareholders include:
  1. BlackRock Inc. — 6.92%
  2. Nantahala Capital Management LLC — 4.29%
  3. Pillsbury Lake Capital LLC — 1.41%
  4. Panoramic Capital LLC — 0.76%
  5. Cannell Capital LLC — 0.62%
  6. Bank of America Corp DE — 0.52%
Learn More about top institutional investors of Eton Pharmaceuticals stock.

Which major investors are selling Eton Pharmaceuticals stock?

Within the previous quarter, ETON stock was sold by these institutional investors:
  1. Northwestern Mutual Wealth Management Co.
Within the last year, company insiders that have sold Eton Pharmaceuticals company stock include:
  1. Jennifer Mckie Adams (Director)
  2. David Krempa (Insider)
Learn More investors selling Eton Pharmaceuticals stock.

Which major investors are buying Eton Pharmaceuticals stock?

In the previous quarter, ETON stock was bought by institutional investors including:
  1. BlackRock Inc.
  2. Nantahala Capital Management LLC
  3. Pillsbury Lake Capital LLC
  4. Panoramic Capital LLC
  5. Cannell Capital LLC
  6. Bank of America Corp DE
  7. Bank of New York Mellon Corp
  8. Wasatch Advisors LP

Eton Pharmaceuticals Active Insiders

Sean Brynjelsen
Sean Brynjelsen (Age 54)
CEO
James R Gruber
James R Gruber
CFO
David Krempa
David Krempa
Chief Business Officer
3 recent trades