1. MARKETS
  2. SECTOR : PHARMA & BIOTECH
  3. INDUSTRY : MAJOR PHARMACEUTICALS
  4. ETON PHARMACEUTICALS INC
Eton Pharmaceuticals Inc
XNAS: ETON
32.49 2.23 (7.37%)
402.8K
XNAS Volume

XNAS 18 May, 2026 5:30 PM (EDT)

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Insider Trading disclosures for Eton Pharma Inc

The latest disclosure was made by Norbert G. Riedel in Eton Pharma Inc where a trade of 19,655 Employee Stock Option (Right to Buy) done was reported to US exchanges on April 21, 2026.

Insider trading is the trading of a company’s securities by individuals with access to confidential or material non-public information about the company. A company is required to report trading by corporate officers, directors, or other company members with significant access to privileged information to the Securities and Exchange Commission (SEC).

Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 21 Apr 2026 19,655 0 - - Employee Stock Option (Right to Buy)
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 8.61 per share. 21 Apr 2026 19,655 67,155 (0%) 0% 8.6 169,230 Common Stock
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 7.31 per share. 21 Apr 2026 12,500 47,500 (0%) 0% 7.3 91,375 Common Stock
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 21 Apr 2026 12,500 0 - - Employee Stock Option (Right to Buy)
Norbert G. Riedel Director 03 Feb 2026 30,000 0 - - Employee Stock Option (Right to Buy)
Norbert G. Riedel Director 03 Feb 2026 30,000 35,000 (0%) 0% 4.4 132,600 Common Stock
Charles J. Casamento Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 12,196 295,171 - - Employee Stock Option (Right to Buy)
Charles J. Casamento Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 7,757 302,928 - - Restricted Stock Units
Norbert G. Riedel Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 7,757 294,253 - - Restricted Stock Units
Norbert G. Riedel Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 12,196 286,496 - - Employee Stock Option (Right to Buy)
Paul Victor Maier Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 12,196 286,496 - - Employee Stock Option (Right to Buy)
Paul Victor Maier Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 7,757 294,253 - - Restricted Stock Units
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Payment of exercise price or tax liability using portion of securities received from the company at price $ 15.39 per share. 12 Jan 2026 5,015 2,889,266 (16%) 0% 15.4 77,181 Common Stock
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 100,517 3,147,829 - - Restricted Stock Units
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 158,046 3,047,312 - - Employee Stock Option (Right to Buy)
Jennifer McKie Adams Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 7,757 178,086 - - Restricted Stock Units
Jennifer McKie Adams Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 12,196 170,329 - - Employee Stock Option (Right to Buy)
James R. Gruber Chief Financial Officer Payment of exercise price or tax liability using portion of securities received from the company at price $ 15.47 per share. 12 Jan 2026 2,293 213,420 (1%) 0% 15.5 35,473 Common Stock
James R. Gruber Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 25,856 279,931 - - Restricted Stock Units
James R. Gruber Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 40,655 254,075 - - Employee Stock Option (Right to Buy)
David C. Krempa Chief Business Officer Payment of exercise price or tax liability using portion of securities received from the company at price $ 15.62 per share. 12 Jan 2026 1,942 630,238 (3%) 0% 15.6 30,334 Common Stock
David C. Krempa Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 40,655 670,893 - - Employee Stock Option (Right to Buy)
David C. Krempa Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 25,856 696,749 - - Restricted Stock Units
Ipek Erdogan-Trinkaus Chief Commercial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 25,856 149,734 - - Restricted Stock Units
Ipek Erdogan-Trinkaus Chief Commercial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2026 40,655 123,878 - - Employee Stock Option (Right to Buy)
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Payment of exercise price or tax liability using portion of securities received from the company at price $ 16.83 per share. 12 Dec 2025 6,732 2,894,281 (16%) 0% 16.8 113,300 Common Stock
James R. Gruber Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Dec 2025 5,502 210,255 - - Restricted Stock Units
James R. Gruber Chief Financial Officer Payment of exercise price or tax liability using portion of securities received from the company at price $ 16.99 per share. 11 Dec 2025 4,542 215,713 (1%) 0% 17.0 77,169 Common Stock
David C. Krempa Chief Business Officer Payment of exercise price or tax liability using portion of securities received from the company at price $ 17.00 per share. 11 Dec 2025 6,264 632,180 (3%) 0% 17 106,488 Common Stock
David C. Krempa Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Dec 2025 5,300 638,468 - - Restricted Stock Units
Ipek Erdogan-Trinkaus Chief Commercial Officer Payment of exercise price or tax liability using portion of securities received from the company at price $ 16.91 per share. 11 Dec 2025 85 2,403 (0%) 0% 16.9 1,437 Common Stock
James R. Gruber Chief Financial Officer Sale of securities on an exchange or to another person at price $ 16.02 per share. 19 Aug 2025 2,631 204,753 (1%) 0% 16.0 42,149 Common Stock
James R. Gruber Chief Financial Officer Sale of securities on an exchange or to another person at price $ 16.16 per share. 19 Aug 2025 39,082 205,299 (1%) 0% 16.2 631,565 Common Stock
David C. Krempa Chief Business Officer Sale of securities on an exchange or to another person at price $ 14.92 per share. 12 Jun 2025 16,977 629,669 (3%) 0% 14.9 253,297 Common Stock
David C. Krempa Chief Business Officer Sale of securities on an exchange or to another person at price $ 14.73 per share. 12 Jun 2025 10,223 612,646 (3%) 0% 14.7 150,585 Common Stock
David C. Krempa Chief Business Officer Sale of securities on an exchange or to another person at price $ 14.77 per share. 12 Jun 2025 6,800 622,869 (3%) 0% 14.8 100,436 Common Stock
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Sale of securities on an exchange or to another person at price $ 16.81 per share. 03 Jun 2025 70,000 2,873,513 (16%) 0% 16.8 1,176,700 Common Stock
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Sale of securities on an exchange or to another person at price $ 17.00 per share. 03 Jun 2025 70,000 2,943,513 (16%) 0% 17 1,190,000 Common Stock
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Sale of securities on an exchange or to another person at price $ 19.02 per share. 03 Jun 2025 400 3,013,513 (16%) 0% 19.0 7,608 Common Stock
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Sale of securities on an exchange or to another person at price $ 18.38 per share. 03 Jun 2025 8,655 3,013,913 (16%) 0% 18.4 159,079 Common Stock
Sean E. Brynjelsen Director, President & CEO, Ten Percent Owner Sale of securities on an exchange or to another person at price $ 17.38 per share. 03 Jun 2025 60,945 3,022,568 (16%) 0% 17.4 1,059,224 Common Stock
Charles J. Casamento Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 25,000 25,000 - - Employee Stock Option (Right to Buy)
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 03 Jan 2025 27,400 0 - - Employee Stock Option (Right to Buy)
Norbert G. Riedel Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 25,000 25,000 - - Employee Stock Option (Right to Buy)
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 3.78 per share. 03 Jan 2025 50,000 137,145 (0%) 0% 3.8 189,000 Common Stock
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 3.47 per share. 03 Jan 2025 25,000 162,145 (0%) 0% 3.5 86,750 Common Stock
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 03 Jan 2025 25,000 0 - - Employee Stock Option (Right to Buy)
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 03 Jan 2025 50,000 0 - - Employee Stock Option (Right to Buy)
Norbert G. Riedel Director Exercise or conversion of derivative security received from the company (such as an option) at price $ 3.58 per share. 03 Jan 2025 27,400 87,145 (0%) 0% 3.6 98,092 Common Stock
Paul Victor Maier Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 25,000 25,000 - - Employee Stock Option (Right to Buy)
Sean E. Brynjelsen Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 107,469 107,469 - - Employee Stock Option (Right to Buy)
Sean E. Brynjelsen Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 72,004 72,004 - - Restricted Stock Units
Jennifer McKie Adams Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 25,000 25,000 - - Employee Stock Option (Right to Buy)
James R. Gruber Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 25,876 25,876 - - Restricted Stock Units
James R. Gruber Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 38,621 38,621 - - Employee Stock Option (Right to Buy)
David C. Krempa Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 25,876 25,876 - - Restricted Stock Units
David C. Krempa Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Jan 2025 38,621 38,621 - - Employee Stock Option (Right to Buy)
David C. Krempa Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 02 Oct 2024 42,088 861,374 - - Restricted Stock Units
Charles Casamento J. Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2024 30,000 164,555 - - Stock Option (Right to buy)
R. Gruber James Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2024 144,677 374,763 - - Stock Option (Right to buy)
Paul Maier Victor Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2024 30,000 164,555 - - Stock Option (Right to buy)
Krempa C. David Chief Business Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2024 144,677 813,430 - - Stock Option (Right to buy)
Riedel Norbert G. Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2024 30,000 164,555 - - Stock Option (Right to buy)
Sean Brynjelsen E. Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2024 438,633 2,473,014 - - Stock Option (Right to buy)
McKie Adams Jennifer Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2024 30,000 133,133 - - Stock Option (Right to buy)
Charles J. Casamento Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Mar 2023 25,000 134,555 - - Stock Option (Right to buy)
Norbert G. Riedel Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Mar 2023 25,000 134,555 - - Stock Option (Right to buy)
Paul Victor Maier Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Mar 2023 25,000 134,555 - - Stock Option(Right to buy)
Sean E. Brynjelsen Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Mar 2023 350,381 1,951,881 - - Stock Option (Right to buy)
Jennifer McKie Adams Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Mar 2023 25,000 103,133 - - Stock Option (Right to buy)
James R. Gruber Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Mar 2023 100,086 200,086 - - Stock Option (right to buy)
Sean E. Brynjelsen Director, Chief Executive Officer Purchase of securities on an exchange or from another person at price $ 2.10 per share. 22 Sep 2022 10,000 1,040,000 (5%) 0% 2.1 21,042 Common Stock
Sean E. Brynjelsen Chief Executive Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jul 2022 110,000 110,000 - - Restricted Stock Units
James R. Gruber Chief Financial Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jul 2022 40,000 40,000 - - Restricted Stock Units
Charles J. Casamento Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 07 Feb 2022 50,000 109,555 - - Stock Option (Right to buy)
Norbert G. Riedel Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 07 Feb 2022 50,000 109,555 - - Stock Option (Right to buy)
Paul Victor Maier Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 07 Feb 2022 50,000 109,555 - - Stock Option(Right to buy)
Sean E. Brynjelsen Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 07 Feb 2022 416,500 1,601,500 - - Stock Option(Right to buy)
W. Wilson Troutman CFO and Secretary Grant, award, or other acquisition of securities at price $ 0.00 per share. 07 Feb 2022 15,000 671,200 - - Stock Option (Right to buy)
Jennifer McKie Adams Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 07 Feb 2022 50,000 78,133 - - Stock Option (Right to buy)
Sean E. Brynjelsen Director, President & CEO Purchase of securities on an exchange or from another person at price $ 4.32 per share. 20 Aug 2021 10,000 1,030,000 (5%) 0% 4.3 43,200 Common Stock
W. Wilson Troutman CFO, Treasurer & Secretary Purchase of securities on an exchange or from another person at price $ 4.43 per share. 20 Aug 2021 5,000 23,027 (0%) 0% 4.4 22,150 Common Stock
Sean E. Brynjelsen Director, President & CEO Purchase of securities on an exchange or from another person at price $ 5.96 per share. 03 Jun 2021 5,000 1,030,000 (5%) 0% 6.0 29,800 Common Stock
Charles J. Casamento Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 May 2021 19,655 59,555 - - Stock Option (Right to buy)
Norbert G. Riedel Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 May 2021 19,655 59,555 - - Stock Option (Right to buy)
Paul Victor Maier Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 May 2021 19,655 59,555 - - Stock Option(Right to buy)
Sean E. Brynjelsen Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 May 2021 245,000 1,185,000 - - Stock Option(Right to buy)
W. Wilson Troutman CFO and Secretary Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 May 2021 125,000 656,200 - - Stock Option(Right to buy)
Jennifer McKie Adams Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 May 2021 28,133 28,133 - - Stock Option (Right to buy)
Charles J. Casamento Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Mar 2020 27,400 27,400 - - Stock Option (Right to buy)
Mark L. Baum Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Mar 2020 27,400 27,400 - - Stock Option (Right to buy)
Norbert G. Riedel Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Mar 2020 27,400 27,400 - - Stock Option (Right to buy)
Paul V. Maier Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Mar 2020 27,400 27,400 - - Stock Option (Right to buy)
Sean E. Brynjelsen Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Mar 2020 490,000 490,000 - - Stock Option (Right to buy)
W. Wilson Troutman CFO, Treasurer & Secretary Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Mar 2020 186,200 186,200 - - Stock Option (Right to buy)
Sean E. Brynjelsen Director, President & CEO Purchase of securities on an exchange or from another person at price $ 6.15 per share. 13 Aug 2019 5,000 1,025,000 (5%) 0% 6.2 30,750 Common Stock
Charles J. Casamento None Purchase of securities on an exchange or from another person at price $ 6.11 per share. 09 Aug 2019 3,500 71,920 (0%) 0% 6.1 21,370 Common Stock
Sean E. Brynjelsen Director, President & CEO Purchase of securities on an exchange or from another person at price $ 7.78 per share. 20 May 2019 1,400 1,011,400 (5%) 0% 7.8 10,895 Common Stock
Sean E. Brynjelsen Director, President & CEO Purchase of securities on an exchange or from another person at price $ 7.96 per share. 20 May 2019 8,600 1,020,000 (5%) 0% 8.0 68,431 Common Stock
Charles J. Casamento None Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2019 12,500 12,500 - - Stock option (right to buy)
Mark L. Baum None Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2019 12,500 12,500 - - Stock option (right to buy)
Norbert G. Riedel None Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2019 12,500 12,500 - - Stock option (right to buy)
Paul V. Maier None Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2019 12,500 12,500 - - Stock option (right to buy)
Sean E. Brynjelsen Director, President & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2019 250,000 250,000 - - Stock option (right to buy)
W. Wilson Troutman CFO, Treasurer & Secretary Grant, award, or other acquisition of securities at price $ 0.00 per share. 20 Feb 2019 95,000 95,000 - - Stock option (right to buy)
Charles J. Casamento None Purchase of securities on an exchange or from another person at price $ 6.00 per share. 15 Nov 2018 5,000 68,420 (0%) 0% 6 30,000 Common Stock
Charles J. Casamento None 15 Nov 2018 8,675 63,420 (0%) 0% 0 Common Stock
Charles J. Casamento None 15 Nov 2018 8,000 0 - - Series A Convertible Preferred Stock
Mark L. Baum None Purchase of securities on an exchange or from another person at price $ 6.00 per share. 15 Nov 2018 10,000 10,000 (0%) 0% 6 60,000 Common Stock
Norbert G. Riedel None Purchase of securities on an exchange or from another person at price $ 6.00 per share. 15 Nov 2018 5,000 59,745 (0%) 0% 6 30,000 Common Stock
Paul V. Maier None Purchase of securities on an exchange or from another person at price $ 6.00 per share. 15 Nov 2018 5,000 59,745 (0%) 0% 6 30,000 Common Stock
Sean E. Brynjelsen Director, President & CEO Purchase of securities on an exchange or from another person at price $ 6.00 per share. 15 Nov 2018 10,000 1,010,000 (5%) 0% 6 60,000 Common Stock
Sean E. Brynjelsen Director, President & CEO 15 Nov 2018 24,940 24,940 (0%) 0% 0 Common Stock
Sean E. Brynjelsen Director, President & CEO 15 Nov 2018 23,000 0 - - Series A Convertible Preferred Stock
W. Wilson Troutman CFO, Treasurer & Secretary Purchase of securities on an exchange or from another person at price $ 6.00 per share. 15 Nov 2018 5,000 5,000 (0%) 0% 6 30,000 Common Stock
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
View All The Insider Trades disclosures