ETON

Healthcare

Eton Pharmaceuticals, Inc.

$18.82-0.20 (-1.08%)

Prev Close

$19.02

Open

$19.08

High

$19.20

Low

$18.50

Volume

155.6K

Market Cap

$444.6M

P/E

—

Div Yield

—

Over the past 12 months, insider activity at Eton Pharmaceuticals, Inc. (ETON) has been exclusively selling, with 0 insider purchases totaling $0.00 and 11 insider sales totaling $5.34M. The most recent insider transaction was by RIEDEL NORBERT G (Director), who sold $132.6K worth of shares on Feb 3, 2026. Eton Pharmaceuticals, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $444.6M.

Buys (12M)

$0.00

Sells (12M)

$5.34M

Net Activity

Net Seller

$5.34M

Active Insiders

last 12 mo

ETON Price Chart

ETON Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Feb 3, 2026↗	RIEDEL NORBERT G	Director	Sell	30,000	$4.42	$132.6K	0
Jan 12, 2026↗	BRYNJELSEN SEAN	President & CEO	Sell	5,015	$15.39	$77.2K	0
Jan 12, 2026↗	Gruber James R.	Chief Financial Officer	Sell	2,293	$15.47	$35.5K	0
Jan 12, 2026↗	Krempa David	Chief Business Officer	Sell	1,942	$15.62	$30.3K	0
Dec 12, 2025↗	BRYNJELSEN SEAN	President & CEO	Sell	6,732	$16.83	$113.3K	0
Dec 11, 2025↗	Erdogan-Trinkaus Ipek	Chief Commercial Officer	Sell	85	$16.90	$1.4K	0
Dec 11, 2025↗	Gruber James R.	Chief Financial Officer	Sell	4,542	$16.99	$77.2K	0
Dec 11, 2025↗	Krempa David	Chief Business Officer	Sell	6,264	$17.00	$106.5K	0
Aug 19, 2025↗	Gruber James R.	Chief Financial Officer	Sell	41,713	$16.15	$673.7K	0
Jun 12, 2025↗	Krempa David	Chief Business Officer	Sell	34,000	$14.83	$504.3K	0
Jun 3, 2025↗	BRYNJELSEN SEAN	President & CEO	Sell	210,000	$17.11	$3.59M	0
Sep 22, 2022↗	BRYNJELSEN SEAN	Chief Executive Officer	Buy	10,000	$2.10	$21.0K	1,040,000
Aug 20, 2021↗	BRYNJELSEN SEAN	President & CEO	Buy	10,000	$4.32	$43.2K	1,030,000
Aug 20, 2021↗	Troutman William Wilson	CFO, Treasurer & Secretary	Buy	5,000	$4.43	$22.1K	23,027
Jun 3, 2021↗	BRYNJELSEN SEAN	President & CEO	Buy	5,000	$5.96	$29.8K	1,030,000

ETON Insider Buying Activity

The following table shows recent insider purchases of Eton Pharmaceuticals, Inc. (ETON) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Sep 22, 2022↗	BRYNJELSEN SEAN	Chief Executive Officer	Buy	10,000	$2.10	$21.0K	1,040,000
Aug 20, 2021↗	BRYNJELSEN SEAN	President & CEO	Buy	10,000	$4.32	$43.2K	1,030,000
Aug 20, 2021↗	Troutman William Wilson	CFO, Treasurer & Secretary	Buy	5,000	$4.43	$22.1K	23,027
Jun 3, 2021↗	BRYNJELSEN SEAN	President & CEO	Buy	5,000	$5.96	$29.8K	1,030,000

ETON Insider Selling Activity

The following table shows recent insider sales of Eton Pharmaceuticals, Inc. (ETON) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value
Feb 3, 2026↗	RIEDEL NORBERT G	Director	Sell	30,000	$4.42	$132.6K
Jan 12, 2026↗	BRYNJELSEN SEAN	President & CEO	Sell	5,015	$15.39	$77.2K
Jan 12, 2026↗	Gruber James R.	Chief Financial Officer	Sell	2,293	$15.47	$35.5K
Jan 12, 2026↗	Krempa David	Chief Business Officer	Sell	1,942	$15.62	$30.3K
Dec 12, 2025↗	BRYNJELSEN SEAN	President & CEO	Sell	6,732	$16.83	$113.3K
Dec 11, 2025↗	Erdogan-Trinkaus Ipek	Chief Commercial Officer	Sell	85	$16.90	$1.4K
Dec 11, 2025↗	Gruber James R.	Chief Financial Officer	Sell	4,542	$16.99	$77.2K
Dec 11, 2025↗	Krempa David	Chief Business Officer	Sell	6,264	$17.00	$106.5K
Aug 19, 2025↗	Gruber James R.	Chief Financial Officer	Sell	41,713	$16.15	$673.7K
Jun 12, 2025↗	Krempa David	Chief Business Officer	Sell	34,000	$14.83	$504.3K
Jun 3, 2025↗	BRYNJELSEN SEAN	President & CEO	Sell	210,000	$17.11	$3.59M