Sean Brynjelsen

Companies

• Eton Pharmaceuticals, Inc.Board member Nov 13, 2018 to now¹
• Eton Pharmaceuticals, Inc.Chief executive officer Nov 13, 2018 to now¹
• Eton Pharmaceuticals, Inc.President Nov 13, 2018 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• EPEton Pharmaceuticals, Inc. ETON986,134 shares²$48.9M at $49.62Aug 20, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 20, 2026Sold 7,342 shares at $62.12 of Eton Pharmaceuticals, Inc.²
• Aug 20, 2026Sold 36,373 shares at $61.11 of Eton Pharmaceuticals, Inc.²
• Aug 20, 2026Sold 47,307 shares at $60.17 of Eton Pharmaceuticals, Inc.²
• Aug 19, 2026Sold 8,978 shares at $62.65 of Eton Pharmaceuticals, Inc.²
• Jul 14, 2026Exercised options 200,000 shares at $1.37 of Eton Pharmaceuticals, Inc.³
• Jul 12, 2026Exercised options 27,500 shares of Eton Pharmaceuticals, Inc.³
• May 28, 2026Sold 148 shares at $32.67 of Eton Pharmaceuticals, Inc.⁴
• May 28, 2026Sold 119,852 shares at $31.88 of Eton Pharmaceuticals, Inc.⁴
• Jan 1, 2026Shares withheld for tax 5,015 shares at $15.39 of Eton Pharmaceuticals, Inc.⁵
• Dec 12, 2025Shares withheld for tax 6,732 shares at $16.83 of Eton Pharmaceuticals, Inc.⁶
• Jun 5, 2025Sold 70,000 shares at $16.81 of Eton Pharmaceuticals, Inc.⁷
• Jun 4, 2025Sold 70,000 shares at $17.00 of Eton Pharmaceuticals, Inc.⁷
• Jun 3, 2025Sold 400 shares at $19.02 of Eton Pharmaceuticals, Inc.⁷
• Jun 3, 2025Sold 8,655 shares at $18.38 of Eton Pharmaceuticals, Inc.⁷
• Jun 3, 2025Sold 60,945 shares at $17.38 of Eton Pharmaceuticals, Inc.⁷
• Sep 22, 2022Bought 10,000 shares at $2.10 of Eton Pharmaceuticals, Inc.⁸