ETON · Nasdaq · CIK 0001710340

Eton Pharmaceuticals, Inc.

Eton Pharmaceuticals, Inc.’s most recent SEC filing in our snapshot is a Form 8-K filed on Oct 14, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $80.0M and net income of -$4.6M, according to its XBRL data on EDGAR. Its EDGAR record lists 34 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
$80.0M
Net income, FY2025
-$4.6M
Form 4 filings on record, past 12 months
34

Company overview

Legal name (as filed)
Eton Pharmaceuticals, Inc.
Ticker
ETON
SEC Central Index Key (CIK)
0001710340
Industry (SIC)
Pharmaceutical Preparations (code 2834)
Business address
DEER PARK, IL
State or country of incorporation
DE
Fiscal year ends
December 31
SEC filer category
Non-accelerated filer<br>Smaller reporting company
Position in SEC ticker list
#2208 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from Eton Pharmaceuticals, Inc.’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$21.8MFY2021$21.3MFY2022$31.6MFY2023$39.0MFY2024$80.0MFY2025
Net income
-$2.0MFY2021-$9.0MFY2022-$936.0KFY2023-$3.8MFY2024-$4.6MFY2025
ETON annual results
ItemFY2021
ended Dec 31, 2021		FY2022
ended Dec 31, 2022		FY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$21.8M$21.3M$31.6M$39.0M$80.0M
Net income-$2.0M-$9.0M-$936.0K-$3.8M-$4.6M
Diluted EPS-$0.08————
Total assets$27.5M$25.0M$31.7M$76.1M$92.1M
Cash and equivalents$14.4M$16.3M$21.4M$14.9M$25.9M

XBRL tags used: revenue = RevenueFromContractWithCustomerExcludingAssessedTax; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareBasicAndDiluted; cash = CashAndCashEquivalentsAtCarryingValue. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

ETON latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Mar 19, 202610-KAnnual report· period Dec 31, 2025Document · Index
Aug 13, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Oct 14, 20268-KMaterial agreement; Acquisition or disposition completed· period Oct 14, 2026Document · Index
Apr 24, 2026DEF 14ADefinitive proxy statement· period Jun 9, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about Eton Pharmaceuticals, Inc., by form type:

4 ×18144 ×98-K ×74/A ×23 ×1144/A ×110-Q ×1SCHEDULE 13G/A ×1
ETON recent filings
FiledFormWhat it isOriginal
Oct 14, 20268-KMaterial agreement; Acquisition or disposition completed· period Oct 14, 2026Document · Index
Oct 6, 2026144Notice of proposed sale of securitiesDocument · Index
Oct 6, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 6, 2026Document · Index
Sep 28, 20268-KOther events· period Sep 28, 2026Document · Index
Aug 31, 20264/AStatement of changes in beneficial ownership (insider trade)· period Aug 28, 2026Document · Index
Aug 28, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 28, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 28, 2026Document · Index
Aug 24, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 24, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 24, 2026Document · Index
Aug 20, 2026144/A144/ADocument · Index
Aug 20, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 19, 2026Document · Index
Aug 19, 2026144Notice of proposed sale of securitiesDocument · Index
Aug 13, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Aug 13, 20268-KResults of operations· period Aug 13, 2026Document · Index
Aug 12, 20263Initial statement of beneficial ownership· period Jul 31, 2026Document · Index
Aug 5, 20268-KMaterial agreement; Acquisition or disposition completed· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 31, 2026Document · Index
Aug 4, 20268-KDirector or officer change· period Jul 31, 2026Document · Index
Jul 29, 20268-KOther events· period Jul 29, 2026Document · Index
Jul 28, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Jul 17, 20264/AStatement of changes in beneficial ownership (insider trade)· period Jul 14, 2026Document · Index
Jul 16, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 14, 2026Document · Index
Jul 14, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 12, 2026Document · Index
Jul 13, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 12, 2026Document · Index
Jul 7, 20264Statement of changes in beneficial ownership (insider trade)· period Jul 2, 2026Document · Index
Jun 30, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 26, 2026Document · Index
Jun 26, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 25, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 23, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 17, 2026144Notice of proposed sale of securitiesDocument · Index
Jun 17, 20264Statement of changes in beneficial ownership (insider trade)· period Jun 17, 2026Document · Index
Jun 9, 20268-KShareholder vote results· period Jun 9, 2026Document · Index
Jun 2, 2026144Notice of proposed sale of securitiesDocument · Index

Insider filing activity

34 Form 4 filings appear in Eton Pharmaceuticals, Inc.’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

Other companies in Pharmaceutical Preparations

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001710340 and XBRL company facts. Eton Pharmaceuticals, Inc. on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.