ETON insider transaction filings

Eton Pharmaceuticals, Inc. — 36 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-08-20. Screen ETON transaction legs live →

FiledFormInsiderReported transactionsSource
2026-08-204BRYNJELSEN SEAN — President & CEO, DirectorSale (S): 8,978 @ $62.65 · Sale (S): 47,307 @ $60.17 · Sale (S): 36,373 @ $61.11 · Sale (S): 7,342 @ $62.12EDGAR
2026-08-044CASAMENTO CHARLES J — DirectorGrant/award (A): 10,000 (derivative) @ $0EDGAR
2026-08-044Erdogan-Trinkaus Ipek — Chief Commercial OfficerGrant/award (A): 80,000 (derivative) @ $0EDGAR
2026-08-044Matthews Judith M. — Chief Financial OfficerGrant/award (A): 32,246 (derivative) @ $0EDGAR
2026-08-044Krempa David — Chief Business OfficerGrant/award (A): 128,985 (derivative) @ $0EDGAR
2026-08-044BRYNJELSEN SEAN — President & CEO, DirectorGrant/award (A): 128,985 (derivative) @ $0EDGAR
2026-08-044MAIER PAUL V — DirectorGrant/award (A): 10,000 (derivative) @ $0EDGAR
2026-08-044Adams Jennifer McKie — DirectorGrant/award (A): 10,000 (derivative) @ $0EDGAR
2026-08-044RIEDEL NORBERT G — DirectorGrant/award (A): 10,000 (derivative) @ $0EDGAR
2026-07-174/AOpaleye Management Inc. — 10% ownerSale (S): 15,000 @ $37.54 · Sale (S): 13,315 @ $37.54EDGAR
2026-07-164Opaleye Management Inc. — 10% ownerSale (S): 15,000 @ $37.54 · Sale (S): 13,315 @ $37.54EDGAR
2026-07-144BRYNJELSEN SEAN — President & CEO, DirectorOption exercise (M): 27,500 · Option exercise (M): 200,000 @ $1.37 · Option exercise (M): 27,500 (derivative) @ $0 · Option exercise (M): 200,000 (derivative) @ $0EDGAR
2026-07-134Krempa David — Chief Business OfficerOption exercise (M): 10,000 · Option exercise (M): 10,000 (derivative) @ $0EDGAR
2026-07-074Opaleye Management Inc. — 10% ownerSale (S): 65,000 @ $37.39 · Sale (S): 25,000 @ $37.39 · Sale (S): 10,000 @ $38 · Sale (S): 20,000 @ $38.37 · Sale (S): 6,685 @ $38.37EDGAR
2026-06-304Krempa David — Chief Business OfficerGrant/award (A): 10,000 (derivative) @ $0EDGAR
2026-06-174Adams Jennifer McKie — DirectorOption exercise (M): 50,000 @ $3.78 · Sale (S): 50,000 @ $32.48 · Option exercise (M): 50,000 (derivative) @ $0EDGAR
2026-05-294BRYNJELSEN SEAN — President & CEO, DirectorSale (S): 119,852 @ $31.88 · Sale (S): 148 @ $32.67EDGAR
2026-05-274Krempa David — Chief Business OfficerOption exercise (M): 30,591 @ $3.58 · Sale (S): 32,963 @ $33.22 · Sale (S): 9,315 @ $33.88 · Sale (S): 519 @ $35 · Option exercise (M): 25,000 @ $1.38 · Option exercise (M): 12,524 @ $1.37 · +9 moreEDGAR
2026-04-224RIEDEL NORBERT G — DirectorOption exercise (M): 12,500 @ $7.31 · Option exercise (M): 19,655 @ $8.61 · Option exercise (M): 12,500 (derivative) @ $0 · Option exercise (M): 19,655 (derivative) @ $0EDGAR
2026-02-054RIEDEL NORBERT G — DirectorOption exercise/expiry (X): 30,000 @ $4.42 · Option exercise/expiry (X): 30,000 (derivative) @ $0EDGAR
2026-01-144Adams Jennifer McKie — DirectorGrant/award (A): 12,196 (derivative) @ $0 · Grant/award (A): 7,757 (derivative) @ $0EDGAR
2026-01-144Erdogan-Trinkaus Ipek — Chief Commercial OfficerGrant/award (A): 40,655 (derivative) @ $0 · Grant/award (A): 25,856 (derivative) @ $0EDGAR
2026-01-144Krempa David — Chief Business OfficerTax withholding (F): 1,942 @ $15.62 · Grant/award (A): 40,655 (derivative) @ $0 · Grant/award (A): 25,856 (derivative) @ $0EDGAR
2026-01-144Gruber James R. — Chief Financial OfficerTax withholding (F): 2,293 @ $15.47 · Grant/award (A): 40,655 (derivative) @ $0 · Grant/award (A): 25,856 (derivative) @ $0EDGAR
2026-01-144BRYNJELSEN SEAN — President & CEO, Director, 10% ownerTax withholding (F): 5,015 @ $15.39 · Grant/award (A): 158,046 (derivative) @ $0 · Grant/award (A): 100,517 (derivative) @ $0EDGAR
2026-01-144MAIER PAUL V — DirectorGrant/award (A): 12,196 (derivative) @ $0 · Grant/award (A): 7,757 (derivative) @ $0EDGAR
2026-01-144RIEDEL NORBERT G — DirectorGrant/award (A): 12,196 (derivative) @ $0 · Grant/award (A): 7,757 (derivative) @ $0EDGAR
2026-01-144CASAMENTO CHARLES J — DirectorGrant/award (A): 12,196 (derivative) @ $0 · Grant/award (A): 7,757 (derivative) @ $0EDGAR
2025-12-124Erdogan-Trinkaus Ipek — Chief Commercial OfficerTax withholding (F): 85 @ $16.90EDGAR
2025-12-124Krempa David — Chief Business OfficerTax withholding (F): 6,264 @ $17 · Grant/award (A): 5,300 (derivative) @ $0EDGAR
2025-12-124Gruber James R. — Chief Financial OfficerTax withholding (F): 4,542 @ $16.99 · Grant/award (A): 5,502 (derivative) @ $0EDGAR
2025-12-124BRYNJELSEN SEAN — President & CEO, Director, 10% ownerTax withholding (F): 6,732 @ $16.83EDGAR
2025-08-204Gruber James R. — Chief Financial OfficerSale (S): 39,082 @ $16.16 · Sale (S): 2,631 @ $16.02EDGAR
2025-06-164Krempa David — Chief Business OfficerSale (S): 16,977 @ $14.92 · Sale (S): 6,800 @ $14.77 · Sale (S): 10,223 @ $14.73EDGAR
2025-06-124Opaleye Management Inc. — 10% ownerPurchase (P): 5,000 @ $15.82 · Purchase (P): 2,930 @ $15.82EDGAR
2025-06-054BRYNJELSEN SEAN — President & CEO, Director, 10% ownerSale (S): 60,945 @ $17.38 · Sale (S): 8,655 @ $18.38 · Sale (S): 400 @ $19.02 · Sale (S): 70,000 @ $17 · Sale (S): 70,000 @ $16.81EDGAR

Recent 8-K events — Eton Pharmaceuticals, Inc.

FiledFormItems reportedSource
2026-08-138-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits
EDGAR
2026-08-058-K1.01 — Entry into a Material Definitive Agreement
2.01 — Completion of Acquisition or Disposition of Assets
9.01 — Financial Statements and Exhibits
EDGAR
2026-08-048-K5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain OfficersEDGAR
2026-07-298-K8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2026-06-098-K5.07 — Submission of Matters to a Vote of Security HoldersEDGAR
2026-05-198-K1.01 — Entry into a Material Definitive Agreement
2.01 — Completion of Acquisition or Disposition of Assets
9.01 — Financial Statements and Exhibits
EDGAR
2026-05-148-K2.02 — Results of Operations and Financial Condition
9.01 — Financial Statements and Exhibits
EDGAR
2026-05-018-K8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2026-04-278-K8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2026-04-168-K5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
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