Health Care · Pharmaceutical Preparations

ETON Eton Pharmaceuticals, Inc. SEC Filings & Insider Trading Activity 2026

company
CIK 171034092 filings
Russell 2000

ETON at a glance

Eton Pharmaceuticals, Inc. (ETON, SEC CIK 1710340) filed its latest 10-K annual report on March 19, 2026, a 10-Q quarterly report on August 13, 2026, an 8-K current report on September 28, 2026 and Form 4 insider filings as recently as October 6, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.

  • For the fiscal year ended December 31, 2025 (FY2025), Eton Pharmaceuticals, Inc. (ETON) reported revenue of $80.0 million (up 104.9% from FY2024) and a net loss of $4.6 million. Diluted EPS was -$0.17.
  • As of June 30, 2026, 24 institutional investment managers tracked by SignalX reported holding Eton Pharmaceuticals, Inc. (ETON) shares worth $219.2 million in 13F-HR filings.
  • The most recent insider open-market sale reported on Form 4 was by Krempa David on October 6, 2026 of 4,166 shares at $55.07 per share.
  • In the last 90 days, ETON insiders reported 0 open-market purchases ($0) and 11 open-market sales ($12.0M) on Form 4, a net sale of $12.0M.

Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).

Revenue · FY2025
$80.0M
+104.9% vs prior year
Insiders · 90 days
0 buys · 11 sells
Net −$12.0M
13F holders
24 funds
$219.2M · +2 vs prior quarter
Latest 8-K
Sep 28, 2026
Item 8.01

AI 10-Q Quarterly Report Analysis

Latest 10-Q, quarter ended Jun 30, 2026

Management Discussion & Analysis

  • Q2 revenue $37.589M, up $18.661M YoY from $18.928M
  • Gross margin 67.6% vs 63.0% YoY, based on gross profit of $25.413M vs $11.924M
  • Best performers INCRELEX®, GALZIN®, Carglumic Acid and HEMANGEOL® additions; no product-level figures disclosed
  • Cash $26.8M at June 30; operating cash flow $14.660M vs $10.049M YoY
  • $15.070M investing outflow, including $14.000M HEMANGEOL® rights acquisition and $1.000M licensing payment

Risk Factors

  • No Risk Factors section provided; filing excerpt contains Items 2–6 and signatures only
  • Cashless warrant exercises issued 296,215 shares at weighted average exercise price of $31.83
  • Warrant exercises generated no cash proceeds and surrendered 62,901 warrants
  • Sixth Amendment to Credit Agreement with SWK Funding LLC dated April 6, 2026
  • Asset Purchase Agreement with Knight Therapeutics Europe S.A. dated May 18, 2026

AI summary of the ETON 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K

AI 8-K Current Report Analysis

The most recent material events, by 8-K item

Filed Sep 28, 2026Full analysis →

Item 8.01: Other Events

  • IMPAVIDO® (miltefosine) capsules launched, adding a commercial product to Eton’s portfolio
  • Full Eton Cares support includes $0 copay for eligible commercially insured patients
Filed Aug 13, 2026Full analysis →

Item 2.02: Results of Operations and Financial Condition

  • Press release presents Adjusted EBITDA as a non-GAAP performance metric alongside U.S. GAAP results
  • Management uses Adjusted EBITDA for budgeting, internal projections, strategy evaluation and board communications
Filed Aug 5, 2026Full analysis →

Item EX-99.1: Item EX-99.1

  • U.S. rights license for ASN-001 expands Eton’s infantile hemangioma franchise beyond HEMANGEOL’s systemic-treatment segment
  • Phase II/III results: week-24 elimination or near-elimination rates of 56% BID and 42% TID versus 15% placebo

Item 1.01: Entry into a Material Definitive Agreement

  • $3.0M upfront license fee due within 30 days for late-stage rare disease candidate ASN-001
  • Bioavailability bridging study required before planned NDA submission in 2H 2027

AI summaries of ETON 8-K current reports filed with the SEC. What 8-K item codes mean

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Recent Insider Transactions (Form 4)

Latest reported trades by officers, directors and 10% owners

InsiderTypeDatePrice
Krempa DavidSellOct 6, 2026$55.07
Krempa DavidMOct 2, 2026-
Krempa DavidMOct 2, 2026-
MAIER PAUL VMAug 28, 2026$7.31
MAIER PAUL VMAug 28, 2026$3.78
MAIER PAUL VMAug 28, 2026-
MAIER PAUL VMAug 28, 2026-
MAIER PAUL VSellAug 28, 2026$61.77

Financial Summary
XBRL

Annual financial summary from SEC XBRL data
MetricFY2023FY2024FY2025
Profitability
Revenue-$39.0M$80.0M
Gross Profit-$23.4M$42.7M
Operating Income--$2.6M-$844K
Net Income--$3.8M-$4.6M
Gross Margin-60.0%53.5%
Op. Margin--6.7%-1.1%
Net Margin--9.8%-5.8%
Balance Sheet
Total Assets$31.7M$76.1M$92.1M
Equity$15.5M$24.4M$26.2M
ROE--15.7%-17.6%
Per Share
EPS-$-0.15$-0.17
Cash Flow
Operating CF-$969K$10.5M
CapEx-$26K$333K

Source: XBRL data in Eton Pharmaceuticals, Inc. (ETON)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →

13F Fund Holdings: Quarterly Trend

Latest: Q2 2026

Aggregate ETON share value held by 13F filers tracked by SignalX, by quarter.

Quarterly totals table
ETON shares held by 13F filers tracked by SignalX, by quarter
QuarterFundsTotal value
Q2 202624$219.2M
Q1 202622$128.3M
Q4 202522$92.5M
Q3 202520$134.5M
Q2 202518$74.9M
Q1 202515$34.6M
Q4 202410$24.4M
Q3 20245$1.9M
Position changes: Q1 2026 → Q2 2026
Top Buyers
Top Sellers
Closed Positions

Source: 13F-HR filings on SEC EDGAR (aggregated from 136 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work

ETON filing archive

AI analysis pages for each 10-K, 10-Q and 8-K

Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4

FormFiling dateAnalysisSEC
4Oct 6, 2026--
8-KSep 28, 2026Analysis-
4Aug 31, 2026--
4Aug 28, 2026--
4Aug 24, 2026--
4Aug 20, 2026--
8-KAug 13, 2026Analysis-
10-QAug 13, 2026Analysis
8-KAug 5, 2026Analysis-
4Aug 4, 2026--
4Aug 4, 2026--
4Aug 4, 2026--
8-KAug 4, 2026Analysis-
4Aug 4, 2026--
4Aug 4, 2026--
4Aug 4, 2026--
4Aug 4, 2026--
4Aug 4, 2026--
8-KJul 29, 2026Analysis-
4Jul 17, 2026--
4Jul 16, 2026--
4Jul 14, 2026--
4Jul 13, 2026--
4Jul 7, 2026--
4Jun 30, 2026--

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ETON SEC filings: frequently asked questions

Are ETON insiders buying or selling?

In the last 90 days, Eton Pharmaceuticals, Inc. (ETON) officers, directors and 10% owners reported no open-market purchases and 11 open-market sales worth $12.0 million by 4 insiders on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.

Which institutions hold ETON stock?

As of June 30, 2026, the largest Eton Pharmaceuticals, Inc. (ETON) holders among the 13F filers tracked by SignalX were BlackRock ($68.6 million), Vanguard Capital Management LLC ($35.4 million), Morgan Stanley ($27.8 million), State Street Corp ($25.4 million), Northern Trust ($9.3 million). 13F-HR reports are filed up to 45 days after each quarter ends.

What was ETON's revenue in fiscal year 2025?

For the fiscal year ended December 31, 2025 (FY2025), Eton Pharmaceuticals, Inc. (ETON) reported revenue of $80.0 million (up 104.9% from FY2024) and a net loss of $4.6 million. Diluted EPS was -$0.17. The figures come from the XBRL data in the 10-K.

What did ETON report in its latest 8-K?

Eton Pharmaceuticals, Inc. (ETON) filed an 8-K on September 28, 2026 reporting Item 8.01 (Other Events). IMPAVIDO® (miltefosine) capsules launched, adding a commercial product to Eton’s portfolio.

What are the latest ETON SEC filings?

Eton Pharmaceuticals, Inc. (ETON) filed its latest 10-K annual report on March 19, 2026, a 10-Q quarterly report on August 13, 2026, an 8-K current report on September 28, 2026 and a Form 4 insider filing on October 6, 2026.

What is ETON's SEC CIK number?

Eton Pharmaceuticals, Inc. (ETON)'s SEC Central Index Key (CIK) is 1710340. EDGAR lists every ETON filing under that number.

Ask anything about ETON

The research agent reads ETON's filings, financials, insider trades and 13F holders, then answers with sources.