Eton Pharmaceuticals Ownership | Who Owns Eton Pharmaceuticals?
Eton Pharmaceuticals Ownership Summary
Eton Pharmaceuticals is owned by 64.90% institutional investors, 4.39% insiders, and 30.71% retail investors. Opaleye management is the largest institutional shareholder, holding 10.63% of ETON shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.56% of its assets in Eton Pharmaceuticals shares.
ETON Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Eton Pharmaceuticals | 64.90% | 4.39% | 30.71% |
| Sector | Healthcare Stocks | 42.54% | 10.83% | 46.63% |
| Industry | Biotech Stocks | 45.22% | 10.75% | 44.04% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Opaleye management | 2.86M | 10.63% | $62.15M |
| Ecor1 capital | 2.03M | 7.55% | $44.12M |
| Blackrock funding, inc. /de | 1.70M | 6.34% | $37.04M |
| Vanguard group | 1.34M | 5.00% | $29.21M |
| Nantahala capital management | 1.18M | 4.37% | $25.55M |
| Morgan stanley | 586.05K | 2.18% | $12.73M |
| Geode capital management | 574.03K | 2.13% | $12.48M |
| Royal bank of canada | 479.19K | 1.78% | $10.41M |
| Westside investment management | 472.54K | 1.76% | $10.27M |
| Cannell capital | 455.40K | 1.69% | $9.90M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Opaleye management | 2.86M | 8.79% | $62.15M |
| Ecor1 capital | 2.03M | 2.12% | $44.12M |
| Westside investment management | 472.54K | 1.64% | $10.27M |
| Cannell capital | 455.40K | 1.51% | $9.90M |
| Lumbard & kellner | 176.30K | 1.41% | $3.83M |
| Nantahala capital management | 1.18M | 0.89% | $25.55M |
| Diametric capital, lp | 99.31K | 0.80% | $2.16M |
| Apis capital advisors | 117.60K | 0.56% | $2.56M |
| Aristides capital | 167.59K | 0.53% | $3.64M |
| Divisadero street capital management, lp | 298.00K | 0.28% | $6.48M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Royal bank of canada | 479.19K | 0.00% | 474.13K |
| Oberweis asset management inc/ | 192.36K | 0.16% | 192.36K |
| Lumbard & kellner | 176.30K | 1.41% | 176.30K |
| Blackrock funding, inc. /de | 1.70M | 0.00% | 172.65K |
| Bnp paribas arbitrage, snc | 229.79K | 0.00% | 142.09K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Acadian asset management | 26.41K | 0.00% | -366.31K |
| Parkman healthcare partners | - | - | -276.89K |
| Wasatch advisors lp | - | - | -231.33K |
| Paradigm capital management inc/ny | - | - | -200.00K |
| Divisadero street capital management, lp | 298.00K | 0.28% | -199.72K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Oberweis asset management inc/ | 192.36K | 0.16% | 192.36K | $4.18M |
| Lumbard & kellner | 176.30K | 1.41% | 176.30K | $3.83M |
| Millennium management | 138.89K | 0.00% | 138.89K | $1.85M |
| Winton group | 35.30K | 0.03% | 35.30K | $767.16K |
| Calamos advisors | 23.63K | 0.00% | 23.63K | $513.57K |
Sold Out
| Holder | Change |
|---|---|
| Lindbrook capital | -4.00 |
| Federated hermes | -686.00 |
| Plante moran financial advisors | -1.00K |
| Lazard asset management | -1.03K |
| Adar1 capital management | -1.20K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 98 | 18.07% | 17,454,599 | 9.66% | 64 | 1.85% | 51 | -12.07% | 27 | 58.82% |
| Jun 30, 2025 | 86 | -1.15% | 16,537,107 | 35.73% | 61 | 2.99% | 61 | 15.09% | 17 | -26.09% |
| Mar 31, 2025 | 89 | 20.27% | 14,123,114 | 7.52% | 52 | 2.04% | 53 | 1.92% | 24 | 71.43% |
| Dec 31, 2024 | 24 | -52.94% | 3,267,082 | -65.64% | 12 | 0.94% | 14 | -46.15% | 6 | - |
| Sep 30, 2024 | 51 | 8.51% | 9,507,914 | 15.55% | 36 | 3.60% | 26 | 85.71% | 6 | -60.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 686.28K | 2.56% | -15.23K |
| Vanguard US Total Market Shares ETF | 681.72K | 2.54% | - |
| iShares Russell 2000 ETF | 625.31K | 2.33% | - |
| Vanguard Institutional Extnd Mkt Idx Tr | 275.36K | 1.03% | -119.33K |
| Fidelity Small Cap Index | 256.87K | 0.96% | 256.87K |
| iShares Russell 2000 Growth ETF | 222.68K | 0.83% | - |
| Paradigm Micro-Cap | 200.00K | 0.77% | - |
| Fidelity Extended Market Index | 137.49K | 0.51% | -1.13K |
| Vanguard Russell 2000 ETF | 122.35K | 0.46% | -8.18K |
| Wasatch Micro Cap Value | 105.10K | 0.40% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 20, 2025 | Gruber James R. | Chief Financial Officer | Sell | $42.15K |
| Aug 19, 2025 | Gruber James R. | Chief Financial Officer | Sell | $631.57K |
| Jun 12, 2025 | Krempa David | Chief Business Officer | Sell | $253.30K |
| Jun 13, 2025 | Krempa David | Chief Business Officer | Sell | $100.44K |
| Jun 16, 2025 | Krempa David | Chief Business Officer | Sell | $150.58K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | 2 |
| 2025 Q2 | 2 | 8 |
| 2025 Q1 | - | - |
| 2024 Q4 | 7 | - |
| 2024 Q3 | 4 | - |
ETON Ownership FAQ
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