Eton Pharmaceuticals, Inc. (ETON)
Nasdaq: ETON · Pharmaceutical Preparations · Deer Park, IL · filing with the SEC since 2017
Grade5.7
◀ Past 5.1● Present 6.6▶ Future 5.1
Who owns Eton Pharmaceuticals, Inc.
As filed with the SECHolders of 5% or more
2
EcoR1 Capital, LLC holds 7.7% of Common Stock, as its SCHEDULE 13G/A filed Feb 14, 2025 says.
Directors and officers
10
report now, of 12 people on the record since 2018. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 2 named at left.
Holders of 5% or moreshare of the class, as filed
EcoR1 Capital, LLC
SCHEDULE 13G/A · filed Feb 14, 2025 · Common Stock
Blackrock, Inc.
SCHEDULE 13G/A · filed Jul 28, 2026 · Common Stock · 5.7% in Jul 17, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%, from 5.01% in Oct 30, 2025
What ETON reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Ipsen Biopharmaceuticals, Inc
A company bought · acquisition · Sep 2025 · owns, named in the 10-K filed Mar 19, 2026
Increlex
A company bought · acquisition · owns, named in the 10-K filed Mar 19, 2026
Insider tradesForm 4
27sales
0purchases
0sales on a scheduled plan
6people selling
$28.1Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 12, 2025 to Nov 12, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 12, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window7 of 14 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Brynjelsen Sean | President & CEO | 6 | $9.9M | 0 | 0 | $0 |
| Opaleye Management Inc. | 10% owner | 9 | $6.9M | 0 | 0 | $0 |
| Maier Paul V | director | 6 | $5.9M | 0 | 0 | $0 |
| Casamento Charles J | director | 5 | $5.3M | 0 | 0 | $0 |
| Krempa David | Chief Business Officer | 7 | $5.1M | 0 | 0 | $0 |
| Adams Jennifer Mckie | director | 1 | $1.6M | 0 | 0 | $0 |
| Erdogan-Trinkaus Ipek | Chief Commercial Officer | 2 | $200,000 | 0 | 0 | $0 |