Eton PharmaceuticalsETON
13F holders, Q2 2026 (June 30)164holders +48
53new positions
5sold out
5famous investors
$36.19avg. 13F price*
At the end of Q2 2026, 164 institutions reported holding Eton Pharmaceuticals Inc. (ETON) in their 13F filings, up 48 from Q1 2026. 53 opened new positions and 5 sold out. The largest holders were Opaleye Management Inc. ($103.5M), EcoR1 Capital, LLC ($78.6M) and BlackRock, Inc. ($68.6M). 5 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).
- Company
- Eton Pharmaceuticals Inc.
- CUSIP
- 29772L108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 53 | $37.9M |
| Exits | 5 | $5.5M |
All 13F filers, Q1 2026 → Q2 2026: 3,258,659 shares bought and 1,247,314 shares sold, net +2,011,345 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 164 holders
| Opaleye Management Inc. | 9.38% | No change | 2,860,000 | $103.5M |
| EcoR1 Capital, LLC | 3.90% | No change | 2,171,938 | $78.6M |
| BlackRock, Inc. | 0.00% | Add +10.4% | 1,895,833 | $68.6M |
| Nantahala Capital Management, LLC | 2.58% | No change | 1,175,951 | $42.6M |
| Vanguard Capital Management LLC | 0.00% | Reduce -1.8% | 976,570 | $35.4M |
| Morgan Stanley | 0.00% | Add +60.7% | 767,972 | $27.8M |
| State Street Corp. | 0.00% | Add +32.4% | 701,786 | $25.4M |
| Geode Capital Management, LLC | 0.00% | Add +12.9% | 652,303 | $23.6M |
| Oberweis Asset Management Inc./ | 0.38% | Add +14.2% | 501,600 | $18.2M |
| National Philanthropic Trust | 0.26% | No change | 492,112 | $17.8M |
| Westside Investment Management, Inc. | 2.05% | Reduce -7.9% | 431,160 | $15.6M |
| Pillsbury Lake Capital LLC | 3.85% | Add +6.1% | 387,157 | $14.0M |
| Nuveen, LLC | 0.00% | Add +548.3% | 375,707 | $13.6M |
| BNP Paribas Financial Markets | 0.01% | Add +6.7% | 322,466 | $11.7M |
| Woodline Partners LP | 0.03% | Add +82.1% | 310,879 | $11.3M |
| Thompson Siegel & Walmsley LLC | 0.19% | Reduce -26.8% | 297,232 | $10.8M |
| Northern Trust Corp. | 0.00% | Add +7.6% | 255,849 | $9.3M |
| Marshall Wace, LLP | 0.01% | Add +201.2% | 249,182 | $9.0M |
| Panoramic Capital, LLC | 3.24% | Add +12.5% | 208,192 | $7.5M |
| Vanguard Portfolio Management LLC | 0.00% | Add +28.2% | 194,591 | $7.0M |
| JPMorgan Chase & Co. | 0.00% | Add +12.8% | 191,635 | $7.0M |
| D. E. Shaw & Co. | 0.00% | New | 188,452 | $6.8M |
| Jane Street Group, LLC | 0.00% | Add +94.6% | 185,697 | $6.7M |
| Lumbard & Kellner, LLC | 1.93% | Reduce 0.0% | 175,909 | $6.4M |
| Cannell Capital LLC | 4.32% | Reduce -50.1% | 170,747 | $6.2M |
| Norges Bank | 0.00% | — | 169,500 | $6.1M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +2.3% | 168,539 | $6.1M |
| Informed Momentum Co LLC | 0.51% | Add +225.0% | 158,045 | $5.7M |
| Prospect Capital Advisors, LLC | 2.58% | New | 157,200 | $5.7M |
| Aristides Capital LLC | 1.35% | Reduce -21.8% | 145,410 | $5.3M |
| Bank of America Corp. | 0.00% | Reduce -1.5% | 142,257 | $5.1M |
| Prelude Capital Management, LLC | 0.37% | Reduce -27.1% | 137,572 | $5.0M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -39.0% | 132,583 | $4.8M |
| Bank of New York Mellon Corp | 0.00% | Add +6.3% | 118,249 | $4.3M |
| Two Sigma Investments, LP | 0.00% | Add +9.3% | 116,291 | $4.2M |
| Wells Fargo & Company | 0.00% | Add +1099.5% | 114,655 | $4.2M |
| Wasatch Advisors LP | 0.02% | New | 92,742 | $3.4M |
| Bridge City Capital, LLC | 0.73% | Add +316.7% | 88,132 | $3.2M |
| Walleye Capital LLC | 0.02% | Add +5.2% | 86,249 | $3.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +12.0% | 77,032 | $2.8M |
| Wellington Management Group LLP | 0.00% | Add +8.5% | 76,103 | $2.8M |
| Diametric Capital, LP | 0.28% | Reduce -53.4% | 73,101 | $2.6M |
| Numerai GP LLC | 0.21% | Add +87.7% | 70,114 | $2.5M |
| UBS Group AG | 0.00% | Reduce -61.3% | 65,424 | $2.4M |
| Squarepoint Ops LLC | 0.00% | New | 59,562 | $2.2M |
| Boothbay Fund Management, LLC | 0.04% | Add +3.4% | 57,516 | $2.1M |
| Barclays PLC | 0.00% | Add +13.8% | 56,181 | $2.0M |
| HighTower Advisors, LLC | 0.00% | Add +187.2% | 52,907 | $1.9M |
| Renaissance Technologies | 0.00% | Reduce -68.0% | 52,300 | $1.9M |
| Citadel Advisors | 0.00% | Reduce -54.6% | 48,969 | $1.8M |
| Polen Capital Management LLC | 0.01% | Add +50.6% | 45,379 | $1.6M |
| Point72 Asset Management | 0.00% | New | 44,918 | $1.6M |
| Aquatic Capital Management LLC | 0.05% | Add +263.1% | 43,794 | $1.6M |
| Dimensional Fund Advisors LP | 0.00% | New | 42,484 | $1.5M |
| HSBC Holdings PLC | 0.00% | New | 40,974 | $1.5M |
| Anchor Capital Advisors LLC | 0.04% | Reduce -0.6% | 40,619 | $1.5M |
| Sei Investments Co. | 0.00% | Reduce -40.2% | 34,698 | $1.3M |
| Jefferies Financial Group Inc. | 0.01% | New | 34,027 | $1.2M |
| Rhumbline Advisers | 0.00% | Add +9.7% | 33,703 | $1.2M |
| Y-Intercept (Hong Kong) Ltd | 0.02% | New | 33,542 | $1.2M |
| Invesco Ltd. | 0.00% | Add +46.0% | 33,384 | $1.2M |
| New York State Common Retirement Fund | 0.00% | Add +304.7% | 32,779 | $1.2M |
| Blair William & Co. | 0.00% | Add +0.1% | 32,419 | $1.2M |
| Riggs Asset Managment Co. Inc. | 0.21% | New | 32,046 | $1.2M |
| Sigma Planning Corp | 0.03% | New | 30,000 | $1.1M |
| American Century Companies Inc. | 0.00% | Add +144.2% | 29,125 | $1.1M |
| Juncture Wealth Strategies, LLC | 0.27% | Add +50.4% | 28,849 | $1.0M |
| Deutsche Bank AG | 0.00% | Add +25.5% | 26,522 | $960K |
| STRS Ohio | 0.00% | New | 23,600 | $854K |
| Guilbault Capital LLC | 0.85% | Add +1.0% | 23,460 | $849K |
| T. Rowe Price Associates Inc. | 0.00% | Add +24.3% | 21,932 | $794K |
| Prudential Financial Inc. | 0.00% | New | 21,133 | $765K |
| Citigroup Inc. | 0.00% | Add +722.3% | 20,952 | $758K |
| Essex Investment Management Co. LLC | 0.10% | Reduce -0.3% | 20,131 | $729K |
| State of Wisconsin Investment Board | 0.00% | Add +4.8% | 19,544 | $707K |
| First Trust Advisors LP | 0.00% | New | 19,477 | $705K |
| Alliancebernstein L.P. | 0.00% | New | 28,250 | $697K |
| Navellier & Associates Inc. | 0.05% | New | 18,010 | $652K |
| Bank of Nova Scotia | 0.00% | Add +14.7% | 17,200 | $623K |
| CHICAGO TRUST Co NA | 0.09% | No change | 16,700 | $605K |
| Man Group plc | 0.00% | New | 16,152 | $585K |
| Gotham Asset Management | 0.00% | New | 15,982 | $579K |
| Los Angeles Capital Management LLC | 0.00% | Add +52.6% | 15,675 | $567K |
| MetLife Investment Management, LLC | 0.00% | Add +0.9% | 15,673 | $567K |
| Acadian Asset Management LLC | 0.00% | New | 15,013 | $541K |
| PDT Partners, LLC | 0.03% | No change | 14,891 | $539K |
| Susquehanna International Group, LLP | 0.00% | Reduce -57.4% | 14,505 | $525K |
| Vanguard Global Advisers, LLC | 0.00% | Add +57.5% | 14,165 | $513K |
| LPL Financial LLC | 0.00% | New | 14,017 | $507K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Reduce -69.2% | 13,150 | $476K |
| Raymond James Financial Inc. | 0.00% | Add +1.6% | 12,444 | $450K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.1% | 12,296 | $445K |
| Legato Capital Management LLC | 0.03% | New | 11,521 | $417K |
| Quantum Private Wealth, LLC | 0.11% | No change | 11,500 | $416K |
| Menard Financial Group LLC | 0.21% | New | 10,642 | $385K |
| &partners | 0.00% | New | 10,000 | $362K |
| Mackenzie Financial Corp. | 0.00% | New | 9,590 | $347K |
| Envestnet Asset Management Inc. | 0.00% | Reduce -10.8% | 9,582 | $347K |
| BRC Group Holdings, Inc. | 0.08% | New | 9,383 | $340K |
| Virtu Financial LLC | 0.01% | New | 9,102 | $329K |
"% of holder's portfolio" is ETON's weight in each manager's 13F, not the share of Eton Pharmaceuticals Inc. the manager owns.