Eton Pharmaceuticals, Inc.
ETON- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001710340
In the last 90 days, Eton Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 5 sales; 164 institutions reported holding it in 13F filings for Q2 2026, worth $722.6M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Eton Pharmaceuticals, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 104
- +2 vs. Q3 2025
- Shares held
- 16.4M
- −1.77M (−9.7%) vs. Q3 2025
- Total value
- $277.5M
- −$116.9M (−29.6%) vs. Q3 2025
- New holders
- 21
- 28 more added
- Sold out
- 19
- 37 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ETON on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 164 | $722.6M |
| Q1 2026 | 116 | $438.6M |
| Q4 2025 | 104 | $277.5M |
| Q3 2025 | 103 | $394.7M |
| Q2 2025 | 87 | $243.3M |
| Q1 2025 | 86 | $189.7M |
| Q4 2024 | 71 | $181.5M |
| Q3 2024 | 48 | $60.0M |
| Q2 2024 | 45 | $28.7M |
| Q1 2024 | 44 | $28.8M |
| Q4 2023 | 56 | $33.5M |
| Q3 2023 | 50 | $28.8M |
| Q2 2023 | 33 | $20.9M |
| Q1 2023 | 35 | $22.5M |
| Q4 2022 | 31 | $18.2M |
| Q3 2022 | 32 | $14.4M |
| Q2 2022 | 29 | $14.6M |
| Q1 2022 | 31 | $27.4M |
| Q4 2021 | 32 | $24.1M |
| Q3 2021 | 37 | $29.5M |
| Q2 2021 | 46 | $48.1M |
| Q1 2021 | 50 | $63.7M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Eton Pharmaceuticals, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Opaleye Management Inc. | 2,860,000 | $48.4M | 6.38% | 00.0% | Unchanged |
| EcoR1 Capital, LLC | 2,030,544 | $34.3M | 1.57% | 00.0% | Unchanged |
| BlackRock, Inc. | 1,738,907 | $29.4M | 0.00% | +34,546+2.0% | Added |
| Vanguard Group Inc | 1,348,668 | $22.8M | 0.00% | +4,553+0.3% | Added |
| Nantahala Capital Management, LLC | 1,175,951 | $19.9M | 1.19% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 565,051 | $9.56M | 0.00% | −8,979−1.6% | Reduced |
| State Street Corp | 501,925 | $8.49M | 0.00% | +63,480+14.5% | Added |
| Morgan Stanley | 493,914 | $8.35M | 0.00% | −92,132−15.7% | Reduced |
| National Philanthropic Trust | 492,112 | $8.32M | 0.08% | 00.0% | Unchanged |
| Westside Investment Management, Inc. | 470,940 | $7.96M | 1.27% | −1,600−0.3% | Reduced |
| Oberweis Asset Management Inc | 431,300 | $7.29M | 0.27% | +238,940+124.2% | Added |
| Thompson Siegel & Walmsley LLC | 408,541 | $6.91M | 0.12% | −10,025−2.4% | Reduced |
| BNP Paribas Arbitrage, SA | 277,458 | $4.69M | 0.00% | +47,668+20.7% | Added |
| Northern Trust Corp | 231,849 | $3.92M | 0.00% | −13,202−5.4% | Reduced |
| Cannell Capital LLC | 216,917 | $3.67M | 2.34% | −238,488−52.4% | Reduced |
| Renaissance Technologies LLC | 205,700 | $3.48M | 0.01% | −118,921−36.6% | Reduced |
| Goldman Sachs Group Inc | 196,263 | $3.32M | 0.00% | +6,099+3.2% | Added |
| Diametric Capital, LP | 193,155 | $3.27M | 0.88% | +93,846+94.5% | Added |
| JPMorgan Chase & Co | 185,439 | $3.14M | 0.00% | −165,978−47.2% | Reduced |
| Lumbard & Kellner, LLC | 174,944 | $2.96M | 1.04% | −1,356−0.8% | Reduced |
| Aristides Capital LLC | 161,436 | $2.73M | 0.94% | −6,151−3.7% | Reduced |
| Bank of New York Mellon Corp | 127,700 | $2.16M | 0.00% | −1,482−1.1% | Reduced |
| UBS Group AG | 126,674 | $2.14M | 0.00% | −93,687−42.5% | Reduced |
| Jefferies Financial Group Inc. | 118,300 | $2.00M | 0.02% | +29,860+33.8% | Added |
| Bank of America Corp | 104,796 | $1.77M | 0.00% | +30,139+40.4% | Added |
| Woodline Partners LP | 95,487 | $1.61M | 0.01% | +95,487 | New |
| Bridgeway Capital Management, LLC | 84,020 | $1.42M | 0.03% | −25,000−22.9% | Reduced |
| Wellington Management Group LLP | 81,201 | $1.37M | 0.00% | −7,018−8.0% | Reduced |
| Millennium Management LLC | 79,331 | $1.34M | 0.00% | +63,469+400.1% | Added |
| Charles Schwab Investment Management Inc | 77,212 | $1.31M | 0.00% | −62−0.1% | Reduced |
| Two Sigma Investments, LP | 76,602 | $1.30M | 0.00% | −209,819−73.3% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 76,586 | $1.30M | 0.00% | −67,225−46.7% | Reduced |
| Citadel Advisors LLC | 74,144 | $1.25M | 0.00% | +74,144 | New |
| Nuveen, LLC | 58,917 | $996.3K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 58,056 | $981.7K | 0.00% | −12,888−18.2% | Reduced |
| Barclays PLC | 51,448 | $870.0K | 0.00% | +14,642+39.8% | Added |
| Russell Investments Group, Ltd. | 49,694 | $840.3K | 0.00% | −5,171−9.4% | Reduced |
| Prelude Capital Management, LLC | 45,325 | $766.4K | 0.06% | +3,452+8.2% | Added |
| Anchor Capital Advisors LLC | 40,668 | $687.7K | 0.02% | +3,890+10.6% | Added |
| XTX Topco Ltd | 32,527 | $550.0K | 0.01% | +8,128+33.3% | Added |
| Blair William & Co | 32,400 | $547.9K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 30,436 | $514.7K | 0.00% | −5,688−15.7% | Reduced |
| Wells Fargo & Company | 28,293 | $478.4K | 0.00% | +11,584+69.3% | Added |
| State of Wisconsin Investment Board | 24,615 | $416.2K | 0.00% | +24,615 | New |
| Guilbault Capital LLC | 23,225 | $392.7K | 0.44% | +23,225 | New |
| Aquatic Capital Management LLC | 22,802 | $385.6K | 0.01% | −13,530−37.2% | Reduced |
| Essex Investment Management Co LLC | 20,182 | $341.3K | 0.05% | 00.0% | Unchanged |
| Invesco Ltd. | 19,691 | $333.0K | 0.00% | +6,213+46.1% | Added |
| Juncture Wealth Strategies, LLC | 18,996 | $321.2K | 0.11% | +2,028+12.0% | Added |
| Bridge City Capital, LLC | 18,600 | $314.5K | 0.09% | +1,927+11.6% | Added |
| Deutsche Bank AG | 18,249 | $308.6K | 0.00% | +850+4.9% | Added |
| Chicago Trust Co NA | 16,700 | $282.4K | 0.04% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 14,631 | $267.0K | 0.00% | +14,631 | New |
| Voleon Capital Management LP | 15,582 | $263.5K | 0.01% | +4,632+42.3% | Added |
| MetLife Investment Management | 15,537 | $262.7K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 15,369 | $260.0K | 0.00% | +1,845+13.6% | Added |
| D. E. Shaw & Co., Inc. | 15,331 | $259.2K | 0.00% | +15,331 | New |
| PDT Partners, LLC | 14,891 | $251.8K | 0.02% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 14,700 | $248.6K | 0.00% | −154,200−91.3% | Reduced |
| Squarepoint Ops LLC | 13,482 | $228.0K | 0.00% | −46,163−77.4% | Reduced |
| Point72 Asset Management, L.P. | 12,925 | $218.6K | 0.00% | +12,925 | New |
| Canada Pension Plan Investment Board | 12,500 | $211.4K | 0.00% | +12,500 | New |
| Intech Investment Management LLC | 12,421 | $210.0K | 0.00% | +1,244+11.1% | Added |
| Raymond James Financial Inc | 12,250 | $207.1K | 0.00% | −74,832−85.9% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 11,864 | $200.6K | 0.00% | −143−1.2% | Reduced |
| Quantum Private Wealth, LLC | 11,500 | $194.5K | 0.06% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 10,944 | $185.1K | 0.00% | −433−3.8% | Reduced |
| Jump Financial, LLC | 10,551 | $178.4K | 0.00% | +10,551 | New |
| Man Group plc | 10,473 | $177.1K | 0.00% | −2,176−17.2% | Reduced |
| Northwestern Mutual Wealth Management Co | 10,000 | $169.1K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 9,357 | $158.2K | 0.01% | −2,175−18.9% | Reduced |
| State of Wyoming | 8,161 | $138.0K | 0.02% | +2,721+50.0% | Added |
| New York State Common Retirement Fund | 8,100 | $137.0K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 7,209 | $121.9K | 0.00% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 6,943 | $117.0K | 0.00% | +5,522+388.6% | Added |
| SG Americas Securities, LLC | 6,471 | $109.0K | 0.00% | +6,471 | New |
| China Universal Asset Management Co., Ltd. | 4,370 | $73.9K | 0.01% | +4,370 | New |
| Quest Partners LLC | 4,149 | $70.2K | 0.00% | −10.0% | Reduced |
| FMR LLC | 3,076 | $52.0K | 0.00% | −2,618−46.0% | Reduced |
| Tower Research Capital LLC (TRC) | 2,994 | $50.6K | 0.00% | +2,023+208.3% | Added |
| Caitong International Asset Management Co., Ltd | 2,939 | $49.7K | 0.01% | +2,939 | New |
| Legal & General Group Plc | 2,731 | $46.2K | 0.00% | −121−4.2% | Reduced |
| Ameritas Investment Partners, Inc. | 2,167 | $36.6K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 1,578 | $26.7K | 0.00% | −23−1.4% | Reduced |
| Citigroup Inc | 1,451 | $24.5K | 0.00% | +240+19.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 1,303 | $22.0K | 0.00% | +1,303 | New |
| Truvestments Capital LLC | 1,183 | $20.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 1,018 | $17.0K | 0.00% | −478,175−99.8% | Reduced |
| Amalgamated Bank | 805 | $14.0K | 0.00% | −71−8.1% | Reduced |
| GF Fund Management Co. Ltd. | 527 | $8.91K | 0.00% | +527 | New |
| Group One Trading, L.P. | 500 | $8.46K | 0.00% | −262−34.4% | Reduced |
| Jones Financial Companies LLLP | 221 | $3.74K | 0.00% | +221 | New |
| Advisor Group Holdings, Inc. | 200 | $3.38K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 167 | $2.82K | 0.00% | +105+169.4% | Added |
| Vermillion & White Wealth Management Group, LLC | 150 | $2.54K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 146 | $2.47K | 0.00% | +146 | New |
| Daiwa Securities Group Inc. | 89 | $2.00K | 0.00% | +89 | New |
| US Bancorp | 54 | $913 | 0.00% | +54 | New |
| The PNC Financial Services Group, Inc. | 51 | $862 | 0.00% | +34+200.0% | Added |
| GAMMA Investing LLC | 23 | $389 | 0.00% | +23 | New |