Eton Pharmaceuticals, Inc.

ETONNASDAQ

$55.36+3.38 (+6.50%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Eton Pharmaceuticals, Inc. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+179.6%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
Opaleye Management Inc.	10.11%	$104M	9.38%	Not reported
Nantahala Capital Management, LLC	8.31%	$85.1M	1.41%	Add 100.00%
EcoR1 Capital, LLC	7.68%	$78.6M	3.82%	Not reported
BlackRock, Inc.	6.70%	$68.6M	0.00%	Not reported
Vanguard Capital Management LLC	3.45%	$35.4M	0.00%	Not reported
Morgan Stanley	2.71%	$27.8M	0.00%	Not reported
State Street Corp	2.48%	$25.4M	0.00%	Not reported
Geode Capital Management, LLC	2.31%	$23.6M	0.00%	Not reported
Oberweis Asset Management Inc/	1.77%	$18.2M	0.38%	Add 14.18%
National Philanthropic Trust	1.74%	$17.8M	0.26%	Not reported
Westside Investment Management, Inc.	1.52%	$15.6M	2.05%	Reduce 7.86%
Pillsbury Lake Capital LLC	1.37%	$14M	3.83%	Add 6.08%
Nuveen, LLC	1.33%	$13.6M	0.00%	Not reported
BNP Paribas Financial Markets	1.14%	$11.7M	0.00%	Not reported
Woodline Partners LP	1.10%	$11.3M	0.03%	Not reported
Thompson Siegel & Walmsley LLC	1.05%	$10.8M	0.19%	Reduce 26.81%
Northern Trust Corp	0.90%	$9.26M	0.00%	Not reported
Marshall Wace, LLP	0.88%	$9.02M	0.01%	Not reported
Panoramic Capital, LLC	0.74%	$7.54M	3.24%	Add 12.54%
Vanguard Portfolio Management LLC	0.69%	$7.04M	0.00%	Not reported
JPMorgan Chase & Co	0.68%	$7.04M	0.00%	Not reported
D. E. Shaw & Co., Inc.	0.67%	$6.82M	0.00%	Not reported
Jane Street Group, LLC	0.66%	$6.72M	0.00%	Not reported
Lumbard & Kellner, LLC	0.62%	$6.37M	1.93%	Not reported
Cannell Capital LLC	0.60%	$6.18M	4.14%	Reduce 50.07%
Norges Bank	0.60%	$6.14M	0.00%	Not reported
Vanguard Fiduciary Trust Co	0.60%	$6.1M	0.00%	Not reported
Informed Momentum Co LLC	0.56%	$5.72M	0.51%	Not reported
Prospect Capital Advisors, LLC	0.56%	$5.69M	2.58%	New Not reported
Aristides Capital LLC	0.51%	$5.26M	1.02%	Not reported
Bank of America Corp	0.50%	$5.15M	0.00%	Not reported
Prelude Capital Management, LLC	0.49%	$4.98M	0.36%	Not reported
Goldman Sachs Group Inc	0.47%	$4.8M	0.00%	Not reported
Bank of New York Mellon Corp	0.42%	$4.28M	0.00%	Not reported
Two Sigma Investments, LP	0.41%	$4.21M	0.00%	Not reported
Wells Fargo & Company	0.41%	$4.15M	0.00%	Not reported
Wasatch Advisors LP	0.33%	$3.36M	0.02%	New Not reported
Bridge City Capital, LLC	0.31%	$3.19M	0.73%	Add 316.70%
Walleye Capital LLC	0.30%	$3.12M	0.01%	Not reported
Charles Schwab Investment Management Inc	0.27%	$2.79M	0.00%	Not reported
Wellington Management Group LLP	0.27%	$2.75M	0.00%	Add 8.53%
Diametric Capital, LP	0.26%	$2.65M	0.28%	Not reported
Numerai GP LLC	0.25%	$2.54M	0.21%	Add 87.69%
UBS Group AG	0.23%	$2.37M	0.00%	Not reported
Squarepoint Ops LLC	0.21%	$2.16M	0.00%	Not reported
Boothbay Fund Management, LLC	0.20%	$2.08M	0.03%	Not reported
Barclays PLC	0.20%	$2.03M	0.00%	Not reported
HighTower Advisors, LLC	0.19%	$1.92M	0.00%	Not reported
Renaissance Technologies LLC	0.18%	$1.89M	0.00%	Not reported
Citadel Advisors LLC	0.17%	$1.77M	0.00%	Not reported

50 of 154 holders

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