ETON
Eton Pharmaceuticals, Inc.
NASDAQ · USHealthcareBiotechnology
$41.42-2.13%
Price as of Jul 20, 2026
ETON ownership
Eton Pharmaceuticals, Inc. ownership & insider activity
Latest available institutional positioning and SEC Form 4 insider transactions, coalesced at the company entity level when listings share coverage.
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
13
Net (3m)
-$13.4M
Insider trades by month Buys Sells
Oct
Jun
Aug
May
Jun
Jul
Context3-month price +41.6%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jul 7, 2026 | Opaleye Management Inc.10 percent owner | Sell | 20,000 | $38.37 |
| Jul 7, 2026 | Opaleye Management Inc.10 percent owner | Sell | 6,685 | $38.37 |
| Jul 7, 2026 | Opaleye Management Inc.10 percent owner | Sell | 65,000 | $37.39 |
| Jul 7, 2026 | Opaleye Management Inc.10 percent owner | Sell | 25,000 | $37.39 |
| Jul 7, 2026 | Opaleye Management Inc.10 percent owner | Sell | 10,000 | $38.00 |
| Jun 30, 2026 | Krempa Davidofficer: Chief Business Officer | Grant | 10,000 | — |
| Jun 17, 2026 | Adams Jennifer McKiedirector | Sell | 50,000 | $32.48 |
| Jun 17, 2026 | Adams Jennifer McKiedirector | Option | 50,000 | $3.78 |
| May 29, 2026 | BRYNJELSEN SEANdirector, officer: President & CEO | Sell | 119,852 | $31.88 |
| May 29, 2026 | BRYNJELSEN SEANdirector, officer: President & CEO | Sell | 148 | $32.67 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Option | 7,203 | $3.58 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Sell | 19,679 | $31.47 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Option | 25,000 | $1.38 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Sell | 519 | $35.00 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Sell | 37,524 | $31.49 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Option | 12,524 | $1.37 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Option | 30,591 | $3.58 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Sell | 32,963 | $33.22 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Sell | 9,315 | $33.88 |
| May 27, 2026 | Krempa Davidofficer: Chief Business Officer | Option | 12,476 | $1.37 |
| Apr 22, 2026 | RIEDEL NORBERT Gdirector | Option | 12,500 | $7.31 |
| Apr 22, 2026 | RIEDEL NORBERT Gdirector | Option | 19,655 | $8.61 |
| Jan 14, 2026 | Adams Jennifer McKiedirector | Grant | 12,196 | $15.47 |
| Jan 14, 2026 | CASAMENTO CHARLES Jdirector | Grant | 7,757 | — |
| Jan 14, 2026 | CASAMENTO CHARLES Jdirector | Grant | 12,196 | $15.47 |
| Jan 14, 2026 | RIEDEL NORBERT Gdirector | Grant | 7,757 | — |
| Jan 14, 2026 | Adams Jennifer McKiedirector | Grant | 7,757 | — |
| Jan 14, 2026 | RIEDEL NORBERT Gdirector | Grant | 12,196 | $15.47 |
| Jan 14, 2026 | Gruber James R.officer: Chief Financial Officer | Tax | 2,293 | $15.47 |
| Jan 14, 2026 | Gruber James R.officer: Chief Financial Officer | Grant | 40,655 | $15.47 |
Source: ETON SEC Form 4 filings, latest Jul 7, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ETON positions over the last 6 months (SEC Form 13F).
Increased
66
New positions
53
Reduced
72
Sold out
38
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| OPALEYE MANAGEMENT INC. | Reduced | 2.9M | May 15, 2026 |
| OPALEYE MANAGEMENT INC. | Unchanged | 2.9M | Feb 17, 2026 |
| ECOR1 CAPITAL, LLC | Increased | 2.2M | May 15, 2026 |
| ECOR1 CAPITAL, LLC | Unchanged | 2.0M | Feb 17, 2026 |
| BLACKROCK, INC. | Increased | 1.7M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 1.7M | May 13, 2026 |
| VANGUARD GROUP INC | Increased | 1.3M | Jan 29, 2026 |
| NANTAHALA CAPITAL MANAGEMENT, LLC | Unchanged | 1.2M | May 15, 2026 |
| NANTAHALA CAPITAL MANAGEMENT, LLC | Unchanged | 1.2M | Feb 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 994K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 578K | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 565K | Feb 9, 2026 |
| STATE STREET CORP | Increased | 530K | May 15, 2026 |
| STATE STREET CORP | Increased | 502K | Feb 13, 2026 |
| MORGAN STANLEY | Reduced | 494K | Feb 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.