Eton Pharmaceuticals, Inc. (ETON)

Latest Insider Confidence Score

2026Q1

47.7
Bearish

Company insider confidence (by quarter)

2018Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Brynjelsen Sean CEO 2,873,513 Jun 5, 2025
Krempa David Chief Business Officer 612,646 Jun 16, 2025
Gruber James R. CFO 204,753 Aug 20, 2025
Opaleye Management Inc. 10% Owner 85,000 Jun 12, 2025
Adams Jennifer McKie 30,000 Feb 15, 2024

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 3, 2026 Feb 5, 2026 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Jan 12, 2026 Jan 14, 2026 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Jan 12, 2026 Jan 14, 2026 Adams Jennifer McKie Director Neutral 52.5 - 0.00% -
Jan 12, 2026 Jan 14, 2026 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
Jan 12, 2026 Jan 14, 2026 MAIER PAUL V Director Neutral 52.5 - 0.00% -
Jan 12, 2026 Jan 14, 2026 Erdogan-Trinkaus Ipek Chief Commercial Officer Neutral 52.5 - 0.00% -
Jan 1, 2026 Jan 14, 2026 BRYNJELSEN SEAN CEO Sell 47.5 -5,015 -0.17% $77.2K
Jan 14, 2026 Jan 14, 2026 Krempa David Chief Business Officer Sell 51.3 -1,942 -0.31% $30.3K
Jan 14, 2026 Jan 14, 2026 Gruber James R. CFO Sell 46.3 -2,293 -1.06% $35.5K
Dec 12, 2025 Dec 12, 2025 Erdogan-Trinkaus Ipek Chief Commercial Officer Sell 47.5 -85 -3.42% $1.4K
Dec 12, 2025 Dec 12, 2025 Krempa David Chief Business Officer Sell 45.0 -6,264 -0.98% $106.5K
Dec 12, 2025 Dec 12, 2025 Gruber James R. CFO Sell 42.5 -4,542 -2.06% $77.2K
Dec 12, 2025 Dec 12, 2025 BRYNJELSEN SEAN CEO Sell 47.5 -6,732 -0.23% $113.3K
Aug 19, 2025 Aug 20, 2025 Gruber James R. CFO Sell 20.0 -41,713 -9.23% $673.7K
Jun 12, 2025 Jun 16, 2025 Krempa David Chief Business Officer Sell 20.0 -34,000 -5.26% $504.3K
Jun 10, 2025 Jun 12, 2025 Opaleye Management Inc. 10% Owner Buy 65.0 +7,930 0.28% $125.5K
Jun 3, 2025 Jun 5, 2025 BRYNJELSEN SEAN CEO Sell 17.5 -210,000 -6.81% $3.6M
Jan 3, 2025 Jan 6, 2025 Adams Jennifer McKie Director Neutral 52.5 - 0.00% -
Jan 3, 2025 Jan 6, 2025 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Jan 3, 2025 Jan 6, 2025 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
Jan 3, 2025 Jan 6, 2025 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Jan 3, 2025 Jan 6, 2025 MAIER PAUL V Director Neutral 52.5 - 0.00% -
Jan 3, 2025 Jan 6, 2025 BRYNJELSEN SEAN CEO Neutral 52.5 - 0.00% -
Jan 3, 2025 Jan 6, 2025 Krempa David Chief Business Officer Neutral 52.5 - 0.00% -
Jan 3, 2025 Jan 6, 2025 Gruber James R. CFO Neutral 52.5 - 0.00% -
Dec 9, 2024 Erdogan-Trinkaus Ipek Chief Commercial Officer Neutral 52.5 - 0.00% -
Oct 23, 2024 Oct 25, 2024 Opaleye Management Inc. 10% Owner Buy 65.0 +10,000 0.36% $79.8K
Oct 4, 2024 Oct 8, 2024 Opaleye Management Inc. 10% Owner Buy 85.0 +62,070 1.10% $434.1K
Oct 2, 2024 Oct 4, 2024 Krempa David Chief Business Officer Neutral 52.5 - 0.00% -
Sep 10, 2024 Sep 12, 2024 Opaleye Management Inc. 10% Owner Buy 90.0 +107,500 4.02% $504.9K
Sep 12, 2024 Opaleye Management Inc. 10% Owner Neutral 52.5 - 0.00% -
Feb 13, 2024 Feb 15, 2024 Gruber James R. CFO Neutral 52.5 - 0.00% -
Feb 13, 2024 Feb 15, 2024 Adams Jennifer McKie Director Neutral 52.5 - 0.00% -
Feb 13, 2024 Feb 15, 2024 BRYNJELSEN SEAN CEO Neutral 52.5 - 0.00% -
Feb 13, 2024 Feb 15, 2024 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
Feb 13, 2024 Feb 15, 2024 Krempa David Chief Business Officer Neutral 52.5 - 0.00% -
Feb 13, 2024 Feb 15, 2024 MAIER PAUL V Director Neutral 52.5 - 0.00% -
Feb 13, 2024 Feb 15, 2024 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Mar 8, 2023 Krempa David Chief Business Officer Neutral 52.5 - 0.00% -
Mar 3, 2023 Mar 3, 2023 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
Mar 3, 2023 Mar 3, 2023 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Mar 3, 2023 Mar 3, 2023 MAIER PAUL V Director Neutral 52.5 - 0.00% -
Mar 3, 2023 Mar 3, 2023 BRYNJELSEN SEAN CEO Neutral 52.5 - 0.00% -
Mar 3, 2023 Mar 3, 2023 Adams Jennifer McKie Director Neutral 52.5 - 0.00% -
Mar 3, 2023 Mar 3, 2023 Gruber James R. CFO Neutral 52.5 - 0.00% -
Sep 22, 2022 Sep 23, 2022 BRYNJELSEN SEAN CEO Buy 68.8 +10,000 0.95% $21K
Jul 12, 2022 Jul 18, 2022 BRYNJELSEN SEAN CEO Neutral 52.5 - 0.00% -
Jul 12, 2022 Jul 18, 2022 Gruber James R. CFO Neutral 52.5 - 0.00% -
Apr 14, 2022 Gruber James R. CFO Neutral 52.5 - 0.00% -
Feb 7, 2022 Feb 28, 2022 Adams Jennifer McKie Director Neutral 52.5 - 0.00% -
Feb 7, 2022 Feb 28, 2022 MAIER PAUL V Director Neutral 52.5 - 0.00% -
Feb 7, 2022 Feb 28, 2022 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Feb 7, 2022 Feb 28, 2022 Troutman William Wilson CFO Neutral 52.5 - 0.00% -
Feb 7, 2022 Feb 28, 2022 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
Feb 7, 2022 Feb 28, 2022 BRYNJELSEN SEAN CEO Neutral 52.5 - 0.00% -
Nov 17, 2021 Nov 19, 2021 Opaleye Management Inc. 10% Owner Sell 22.5 -25,000 -1.04% $116.7K
Nov 15, 2021 Nov 17, 2021 Opaleye Management Inc. 10% Owner Sell 32.5 -15,438 -0.62% $74.9K
Nov 5, 2021 Nov 9, 2021 Opaleye Management Inc. 10% Owner Sell 17.5 -220,362 -8.10% $1.4M
Nov 3, 2021 Nov 5, 2021 Opaleye Management Inc. 10% Owner Sell 17.5 -202,200 -6.92% $1.3M
Oct 8, 2021 Oct 13, 2021 Opaleye Management Inc. 10% Owner Sell 20.0 -165,100 -4.97% $830.7K
Aug 20, 2021 Aug 20, 2021 Troutman William Wilson CFO Buy 91.3 +5,000 27.74% $22.2K
Aug 20, 2021 Aug 20, 2021 BRYNJELSEN SEAN CEO Buy 68.8 +10,000 0.96% $43.2K
Aug 4, 2021 Aug 6, 2021 Opaleye Management Inc. 10% Owner Sell 17.5 -604,500 -16.37% $3.5M
Jun 15, 2021 Jun 21, 2021 Opaleye Management Inc. 10% Owner Sell 20.0 -105,000 -2.76% $847.4K
Jun 15, 2021 Jun 17, 2021 Opaleye Management Inc. 10% Owner Sell 20.0 -105,000 -2.76% $847.4K
Jun 3, 2021 Jun 3, 2021 BRYNJELSEN SEAN CEO Buy 61.3 +5,000 0.48% $29.8K
May 25, 2021 May 27, 2021 Opaleye Management Inc. 10% Owner Sell 17.5 -242,300 -6.00% $2.1M
May 3, 2021 May 5, 2021 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
May 3, 2021 May 5, 2021 BRYNJELSEN SEAN CEO Neutral 52.5 - 0.00% -
May 3, 2021 May 5, 2021 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
May 3, 2021 May 5, 2021 Troutman William Wilson CFO Neutral 52.5 - 0.00% -
May 3, 2021 May 5, 2021 Adams Jennifer McKie Director Neutral 52.5 - 0.00% -
May 3, 2021 May 5, 2021 MAIER PAUL V Director Neutral 52.5 - 0.00% -
Mar 17, 2021 Adams Jennifer McKie Director Neutral 52.5 - 0.00% -
Mar 19, 2020 Feb 16, 2021 CASAMENTO CHARLES J Director Neutral 27.5 -3,500 -4.87% -
Oct 16, 2020 Oct 16, 2020 Opaleye Management Inc. 10% Owner Buy 100.0 +400,000 10.99% $2.8M
Apr 6, 2020 Opaleye Management Inc. 10% Owner Neutral 52.5 - 0.00% -
Mar 12, 2020 Mar 16, 2020 BAUM MARK L Director Neutral 52.5 - 0.00% -
Mar 12, 2020 Mar 16, 2020 Troutman William Wilson CFO Neutral 52.5 - 0.00% -
Mar 12, 2020 Mar 16, 2020 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
Mar 12, 2020 Mar 16, 2020 MAIER PAUL V Director Neutral 52.5 - 0.00% -
Mar 12, 2020 Mar 16, 2020 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Mar 12, 2020 Mar 16, 2020 BRYNJELSEN SEAN CEO Neutral 52.5 - 0.00% -
Aug 13, 2019 Aug 13, 2019 BRYNJELSEN SEAN CEO Buy 61.3 +5,000 0.48% $30.8K
Aug 9, 2019 Aug 12, 2019 CASAMENTO CHARLES J Director Buy 86.3 +3,500 5.12% $21.4K
May 20, 2019 May 22, 2019 BRYNJELSEN SEAN CEO Buy 72.5 +10,000 0.97% $79.3K
Feb 20, 2019 Mar 8, 2019 RIEDEL NORBERT G Director Neutral 52.5 - 0.00% -
Feb 20, 2019 Mar 8, 2019 MAIER PAUL V Director Neutral 52.5 - 0.00% -
Feb 20, 2019 Mar 8, 2019 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
Feb 20, 2019 Mar 8, 2019 BAUM MARK L Director Neutral 52.5 - 0.00% -
Feb 20, 2019 Mar 8, 2019 Troutman William Wilson CFO Neutral 52.5 - 0.00% -
Feb 20, 2019 Mar 8, 2019 BRYNJELSEN SEAN CEO Neutral 52.5 - 0.00% -
Nov 15, 2018 Nov 15, 2018 CASAMENTO CHARLES J Director Buy 86.3 +5,000 7.88% $30K
Nov 15, 2018 Nov 15, 2018 BRYNJELSEN SEAN CEO Buy 82.5 +10,000 1.00% $60K
Nov 15, 2018 Nov 15, 2018 MAIER PAUL V Director Buy 86.3 +5,000 9.13% $30K
Nov 15, 2018 Nov 15, 2018 RIEDEL NORBERT G Director Buy 86.3 +5,000 9.13% $30K
Nov 15, 2018 Nov 15, 2018 Troutman William Wilson CFO Buy 91.3 +5,000 100.00% $30K
Nov 15, 2018 Nov 15, 2018 BAUM MARK L Director Buy 82.5 +10,000 1.27% $60K
Nov 13, 2018 CASAMENTO CHARLES J Director Neutral 52.5 - 0.00% -
Nov 13, 2018 MAIER PAUL V Director Neutral 52.5 - 0.00% -