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 $766.6M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Eton Pharmaceuticals, Inc. as of Jun 30, 2026. 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
- 164
- +49 vs. Q1 2026
- Shares held
- 21.2M
- +3.40M (+19.1%) vs. Q1 2026
- Total value
- $766.6M
- +$328.0M (+74.8%) vs. Q1 2026
- New holders
- 54
- 59 more added
- Sold out
- 5
- 35 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $766.6M |
| Q1 2026 | 116 | $438.6M |
| Q4 2025 | 104 | $277.5M |
| Q3 2025 | 103 | $405.7M |
| Q2 2025 | 87 | $243.4M |
| Q1 2025 | 86 | $189.7M |
| Q4 2024 | 71 | $181.5M |
| Q3 2024 | 48 | $60.0M |
| Q2 2024 | 45 | $32.4M |
| Q1 2024 | 44 | $28.9M |
| 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 | $17.7M |
| Q1 2022 | 31 | $27.4M |
| Q4 2021 | 32 | $27.2M |
| Q3 2021 | 37 | $32.6M |
| Q2 2021 | 46 | $51.8M |
| Q1 2021 | 50 | $68.0M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Eton Pharmaceuticals, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Opaleye Management Inc. | 2,860,000 | $103.5M | 9.38% | 00.0% | Unchanged |
| Nantahala Capital Management, LLC | 2,351,902 | $85.1M | 2.58% | +1,175,951+100.0% | Added |
| EcoR1 Capital, LLC | 2,171,938 | $78.6M | 3.90% | 00.0% | Unchanged |
| BlackRock, Inc. | 1,895,833 | $68.6M | 0.00% | +178,547+10.4% | Added |
| Vanguard Capital Management LLC | 976,570 | $35.4M | 0.00% | −17,519−1.8% | Reduced |
| Morgan Stanley | 767,972 | $27.8M | 0.00% | +290,015+60.7% | Added |
| State Street Corp | 701,786 | $25.4M | 0.00% | +171,571+32.4% | Added |
| Geode Capital Management, LLC | 652,303 | $23.6M | 0.00% | +74,637+12.9% | Added |
| Oberweis Asset Management Inc | 501,600 | $18.2M | 0.38% | +62,300+14.2% | Added |
| National Philanthropic Trust | 492,112 | $17.8M | 0.26% | 00.0% | Unchanged |
| Westside Investment Management, Inc. | 431,160 | $15.6M | 2.05% | −36,755−7.9% | Reduced |
| Pillsbury Lake Capital LLC | 387,157 | $14.0M | 3.85% | +22,203+6.1% | Added |
| Nuveen, LLC | 375,707 | $13.6M | 0.00% | +317,757+548.3% | Added |
| BNP Paribas Arbitrage, SA | 322,466 | $11.7M | 0.01% | +20,358+6.7% | Added |
| Woodline Partners LP | 310,879 | $11.3M | 0.03% | +140,180+82.1% | Added |
| Thompson Siegel & Walmsley LLC | 297,232 | $10.8M | 0.19% | −108,857−26.8% | Reduced |
| Northern Trust Corp | 255,849 | $9.26M | 0.00% | +18,017+7.6% | Added |
| Marshall Wace, LLP | 249,182 | $9.02M | 0.01% | +166,461+201.2% | Added |
| Panoramic Capital, LLC | 208,192 | $7.54M | 3.24% | +23,192+12.5% | Added |
| Vanguard Portfolio Management LLC | 194,591 | $7.04M | 0.00% | +42,843+28.2% | Added |
| JPMorgan Chase & Co | 191,635 | $7.04M | 0.00% | +21,759+12.8% | Added |
| D. E. Shaw & Co., Inc. | 188,452 | $6.82M | 0.00% | +188,452 | New |
| Jane Street Group, LLC | 185,697 | $6.72M | 0.00% | +90,277+94.6% | Added |
| Lumbard & Kellner, LLC | 175,909 | $6.37M | 1.93% | −20.0% | Reduced |
| Cannell Capital LLC | 170,747 | $6.18M | 4.32% | −171,238−50.1% | Reduced |
| Norges Bank | 169,500 | $6.14M | 0.00% | +169,500 | New |
| Vanguard Fiduciary Trust Co | 168,539 | $6.10M | 0.00% | +3,824+2.3% | Added |
| EAM Investors, LLC | 158,045 | $5.72M | 0.51% | +109,422+225.0% | Added |
| Prospect Capital Advisors, LLC | 157,200 | $5.69M | 2.58% | +157,200 | New |
| Aristides Capital LLC | 145,410 | $5.26M | 1.35% | −40,631−21.8% | Reduced |
| Bank of America Corp | 142,257 | $5.15M | 0.00% | −2,110−1.5% | Reduced |
| Prelude Capital Management, LLC | 137,572 | $4.98M | 0.37% | −51,230−27.1% | Reduced |
| Goldman Sachs Group Inc | 132,583 | $4.80M | 0.00% | −84,863−39.0% | Reduced |
| Bank of New York Mellon Corp | 118,249 | $4.28M | 0.00% | +6,994+6.3% | Added |
| Two Sigma Investments, LP | 116,291 | $4.21M | 0.00% | +9,898+9.3% | Added |
| Wells Fargo & Company | 114,655 | $4.15M | 0.00% | +105,096+1,099.4% | Added |
| Wasatch Advisors Inc | 92,742 | $3.36M | 0.02% | +92,742 | New |
| Bridge City Capital, LLC | 88,132 | $3.19M | 0.73% | +66,982+316.7% | Added |
| Walleye Capital LLC | 86,249 | $3.12M | 0.01% | +4,286+5.2% | Added |
| Anchor Capital Advisors LLC | 81,238 | $2.94M | 0.04% | +40,380+98.8% | Added |
| Charles Schwab Investment Management Inc | 77,032 | $2.79M | 0.00% | +8,237+12.0% | Added |
| Wellington Management Group LLP | 76,103 | $2.75M | 0.00% | +5,979+8.5% | Added |
| Diametric Capital, LP | 73,101 | $2.65M | 0.28% | −83,825−53.4% | Reduced |
| Numerai GP LLC | 70,114 | $2.54M | 0.21% | +32,758+87.7% | Added |
| UBS Group AG | 65,424 | $2.37M | 0.00% | −103,534−61.3% | Reduced |
| Squarepoint Ops LLC | 59,562 | $2.16M | 0.00% | +59,562 | New |
| Boothbay Fund Management, LLC | 57,516 | $2.08M | 0.04% | +1,911+3.4% | Added |
| Barclays PLC | 56,181 | $2.03M | 0.00% | +6,807+13.8% | Added |
| HighTower Advisors, LLC | 52,907 | $1.92M | 0.00% | +34,484+187.2% | Added |
| Renaissance Technologies LLC | 52,300 | $1.89M | 0.00% | −111,021−68.0% | Reduced |
| Citadel Advisors LLC | 48,969 | $1.77M | 0.00% | −58,846−54.6% | Reduced |
| Polen Capital Management LLC | 45,379 | $1.64M | 0.01% | +15,241+50.6% | Added |
| Point72 Asset Management, L.P. | 44,918 | $1.63M | 0.00% | +44,918 | New |
| Aquatic Capital Management LLC | 43,794 | $1.59M | 0.05% | +31,733+263.1% | Added |
| Dimensional Fund Advisors LP | 42,484 | $1.54M | 0.00% | +42,484 | New |
| HSBC Holdings PLC | 40,974 | $1.53M | 0.00% | +40,974 | New |
| SEI Investments Co | 34,698 | $1.26M | 0.00% | −23,336−40.2% | Reduced |
| Jefferies Financial Group Inc. | 34,027 | $1.23M | 0.01% | +34,027 | New |
| Rhumbline Advisers | 33,703 | $1.22M | 0.00% | +2,977+9.7% | Added |
| Y-Intercept (Hong Kong) Ltd | 33,542 | $1.21M | 0.02% | +33,542 | New |
| Invesco Ltd. | 33,384 | $1.21M | 0.00% | +10,510+45.9% | Added |
| New York State Common Retirement Fund | 32,779 | $1.19M | 0.00% | +24,679+304.7% | Added |
| Blair William & Co | 32,419 | $1.17M | 0.00% | +19+0.1% | Added |
| Riggs Asset Managment Co. Inc. | 32,046 | $1.16M | 0.21% | +32,046 | New |
| Sigma Planning Corp | 30,000 | $1.09M | 0.03% | +30,000 | New |
| American Century Companies Inc | 29,125 | $1.05M | 0.00% | +17,199+144.2% | Added |
| Juncture Wealth Strategies, LLC | 28,849 | $1.04M | 0.27% | +9,668+50.4% | Added |
| Deutsche Bank AG | 26,522 | $960.1K | 0.00% | +5,386+25.5% | Added |
| STRS Ohio | 23,600 | $854.3K | 0.00% | +23,600 | New |
| Guilbault Capital LLC | 23,460 | $849.3K | 0.85% | +235+1.0% | Added |
| Price T Rowe Associates Inc | 21,932 | $794.0K | 0.00% | +4,280+24.2% | Added |
| Prudential Financial Inc | 21,133 | $765.0K | 0.00% | +21,133 | New |
| Citigroup Inc | 20,952 | $758.5K | 0.00% | +18,404+722.3% | Added |
| Essex Investment Management Co LLC | 20,131 | $728.7K | 0.10% | −51−0.3% | Reduced |
| State of Wisconsin Investment Board | 19,544 | $707.5K | 0.00% | +900+4.8% | Added |
| First Trust Advisors LP | 19,477 | $705.1K | 0.00% | +19,477 | New |
| Alliancebernstein L.P. | 28,250 | $697.2K | 0.00% | +28,250 | New |
| Navellier & Associates Inc | 18,010 | $652.0K | 0.05% | +18,010 | New |
| Bank of Nova Scotia | 17,200 | $622.6K | 0.00% | +2,200+14.7% | Added |
| Chicago Trust Co NA | 16,700 | $604.5K | 0.09% | 00.0% | Unchanged |
| Man Group plc | 16,152 | $584.7K | 0.00% | +16,152 | New |
| Gotham Asset Management, LLC | 15,982 | $578.5K | 0.00% | +15,982 | New |
| Los Angeles Capital Management LLC | 15,675 | $567.4K | 0.00% | +5,406+52.6% | Added |
| MetLife Investment Management | 15,673 | $567.4K | 0.00% | +136+0.9% | Added |
| Acadian Asset Management LLC | 15,013 | $541.0K | 0.00% | +15,013 | New |
| PDT Partners, LLC | 14,891 | $539.1K | 0.03% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 14,505 | $525.1K | 0.00% | −19,579−57.4% | Reduced |
| Vanguard Global Advisers, LLC | 14,165 | $512.8K | 0.00% | +5,174+57.5% | Added |
| LPL Financial LLC | 14,017 | $507.4K | 0.00% | +14,017 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 13,150 | $476.0K | 0.00% | −29,543−69.2% | Reduced |
| Raymond James Financial Inc | 12,444 | $450.5K | 0.00% | +194+1.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 12,296 | $445.1K | 0.00% | +258+2.1% | Added |
| Legato Capital Management LLC | 11,521 | $417.1K | 0.03% | +11,521 | New |
| Quantum Private Wealth, LLC | 11,500 | $416.3K | 0.11% | 00.0% | Unchanged |
| Menard Financial Group LLC | 10,642 | $385.2K | 0.21% | +10,642 | New |
| Wiley Bros.-Aintree Capital, LLC | 10,000 | $362.0K | 0.00% | +10,000 | New |
| Mackenzie Financial Corp | 9,590 | $347.2K | 0.00% | +9,590 | New |
| Envestnet Asset Management Inc | 9,582 | $346.9K | 0.00% | −1,157−10.8% | Reduced |
| B. Riley Financial, Inc. | 9,383 | $339.7K | 0.08% | +9,383 | New |
| Virtu Financial LLC | 9,102 | $329.0K | 0.01% | +9,102 | New |