ETON
Eton Pharmaceuticals, Inc.
Pharmaceutical PreparationsNasdaqNon-accelerated filer<br>Smaller reporting company
Total Trades
6
Buys
4
Sells
2
Largest Trade
$1M+
Insiders
3
Institutional Funds
71
Inst. Value
$1M+
Activist Filings
9
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Krempa David | Chief Business Off… | SELL | $500K+ | 34K | $14.83 | Jun 16, 2025 |
| Opaleye Management Inc. | 10% Owner | BUY | $100K–$500K | 8K | $15.82 | Jun 12, 2025 |
| BRYNJELSEN SEAN | President & CEO | SELL | $1M+ | 210K | $17.11 | Jun 5, 2025 |
| Opaleye Management Inc. | 10% Owner | BUY | $50K–$100K | 10K | $7.98 | Oct 25, 2024 |
| Opaleye Management Inc. | 10% Owner | BUY | $100K–$500K | 62K | $6.99 | Oct 8, 2024 |
| BRYNJELSEN SEAN | CEO | BUY | $15K–$50K | 10K | $2.10 | Sep 23, 2022 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 71 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Nantahala Capital Management, LLC | 1.2M | $1M+ | SH |
| STATE STREET CORP | 502K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 488K | $1M+ | SH |
| Westside Investment Management, Inc. | 470K | $1M+ | SH |
| THOMPSON SIEGEL & WALMSLEY LLC | 409K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 277K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 206K | $1M+ | SH |
| Diametric Capital, LP | 193K | $1M+ | SH |
| Lumbard & Kellner, LLC | 175K | $1M+ | SH |
| Aristides Capital LLC | 161K | $1M+ | SH |
| Aristides Capital LLC | 161K | $1M+ | SH |
| VANGUARD GROUP INC | 159K | $1M+ | SH |
| UBS Group AG | 127K | $1M+ | SH |
| Jefferies Financial Group Inc. | 118K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 77K | $1M+ | SH |
| Connor, Clark & Lunn Investment Management Ltd. | 77K | $1M+ | SH |
| Bank of New York Mellon Corp | 72K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 60K | $1M+ | SH |
| Nuveen, LLC | 59K | $500K+ | SH |
| JANE STREET GROUP, LLC | 58K | $500K+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Oct 30, 2025
5.0%
1.3M shares
SC 13G · Jul 17, 2025
5.7%
1.5M shares
SC 13G/A · Feb 14, 2025
7.7%
2.0M shares
SC 13G · Dec 9, 2024
5.4%
1.4M shares
Opaleye Management, Inc. 20-5648796
SC 13G/A · Sep 12, 2024
10.3%
2.7M shares
SC 13D/A · Apr 30, 2024
0.0%
0 shares
Opaleye Management, Inc. 20-5648796
SC 13G/A · Jan 20, 2023
8.6%
2.2M shares
SC 13D/A · Jan 28, 2022
8.1%
2.0M shares
Opaleye Management, Inc. 20-5648796
SC 13G/A · Jan 24, 2022
9.7%
2.4M shares