Eton PharmaceuticalsETON
13F holders, Q4 2024 (December 31)71holders +23
24new positions
3sold out
2famous investors
$13.32avg. 13F price*
At the end of Q4 2024, 71 institutions reported holding Eton Pharmaceuticals Inc. (ETON) in their 13F filings, up 23 from Q3 2024. 24 opened new positions and 3 sold out. The largest holders were Opaleye Management Inc. ($38.0M), EcoR1 Capital, LLC ($24.4M) and Nantahala Capital Management, LLC ($14.9M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Eton Pharmaceuticals Inc.
- CUSIP
- 29772L108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 24 | $16.5M |
| Exits | 3 | $83K |
All 13F filers, Q3 2024 → Q4 2024: 3,788,781 shares bought and 618,038 shares sold, net +3,170,743 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 71 holders
| Opaleye Management Inc. | 6.78% | Add +2.6% | 2,852,070 | $38.0M |
| EcoR1 Capital, LLC | 0.97% | Add +223.2% | 1,829,603 | $24.4M |
| Nantahala Capital Management, LLC | 1.04% | Add +12.0% | 1,118,483 | $14.9M |
| Vanguard Group Inc. | 0.00% | Add +3.5% | 1,063,707 | $14.2M |
| Westside Investment Management, Inc. | 1.61% | Reduce -7.0% | 575,222 | $7.7M |
| National Philanthropic Trust | 0.09% | No change | 492,112 | $6.6M |
| Mink Brook Asset Management LLC | 5.81% | — | 455,805 | $6.1M |
| Cannell Capital LLC | 1.05% | New | 381,323 | $5.1M |
| BlackRock, Inc. | 0.00% | Add +11.5% | 317,625 | $4.2M |
| Parkman Healthcare Partners LLC | 0.49% | Add +6.4% | 276,890 | $3.7M |
| Geode Capital Management, LLC | 0.00% | Reduce -1.5% | 268,646 | $3.6M |
| Acadian Asset Management LLC | 0.01% | Add +134.5% | 248,505 | $3.3M |
| Aristides Capital LLC | 1.01% | Add +20.8% | 241,587 | $3.2M |
| Bridgeway Capital Management, LLC | 0.07% | Reduce -5.7% | 238,962 | $3.2M |
| Wasatch Advisors LP | 0.02% | Reduce -3.0% | 231,328 | $3.1M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +230.5% | 214,878 | $2.9M |
| Paradigm Capital Management Inc. | 0.12% | Reduce -33.3% | 200,000 | $2.7M |
| Renaissance Technologies | 0.00% | Add +131.5% | 193,100 | $2.6M |
| Susquehanna International Group, LLP | 0.00% | Add +61.1% | 192,326 | $2.6M |
| Acuitas Investments, LLC | 2.03% | Reduce -68.0% | 185,824 | $2.5M |
| Millennium Management | 0.00% | New | 138,887 | $1.8M |
| UBS Group AG | 0.00% | Add +611.7% | 135,352 | $1.8M |
| Goldman Sachs Group Inc. | 0.00% | New | 129,879 | $1.7M |
| Thompson Siegel & Walmsley LLC | 0.03% | Add +11.3% | 128,039 | $1.7M |
| Two Sigma Investments, LP | 0.00% | New | 112,458 | $1.5M |
| State Street Corp. | 0.00% | Add +29.4% | 105,336 | $1.4M |
| Informed Momentum Co LLC | 0.18% | Reduce -25.9% | 95,019 | $1.3M |
| Qube Research & Technologies Ltd | 0.00% | Add +191.2% | 94,181 | $1.3M |
| Schonfeld Strategic Advisors LLC | 0.01% | Add +421.3% | 89,664 | $1.2M |
| Northern Trust Corp. | 0.00% | Add +35.6% | 86,957 | $1.2M |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.3% | 74,246 | $989K |
| 683 Capital Management, LLC | 0.10% | New | 69,000 | $919K |
| Jane Street Group, LLC | 0.00% | Add +328.6% | 64,323 | $857K |
| Anchor Capital Advisors LLC | 0.02% | New | 60,432 | $805K |
| Barclays PLC | 0.00% | New | 54,886 | $731K |
| JPMorgan Chase & Co. | 0.00% | Add +7086.9% | 51,961 | $692K |
| Two Sigma Advisers, LP | 0.00% | New | 49,700 | $662K |
| Cubist Systematic Strategies, LLC | 0.01% | Add +422.9% | 43,239 | $576K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 37,900 | $505K |
| Simplex Trading, LLC | 0.01% | New | 36,376 | $484K |
| Marshall Wace, LLP | 0.00% | Add +75.3% | 36,182 | $482K |
| Blair William & Co. | 0.00% | Add +1.2% | 34,900 | $465K |
| Baader Bank Aktiengesellschaft | 0.03% | New | 28,000 | $373K |
| Jump Financial, LLC | 0.01% | New | 24,710 | $329K |
| Essex Investment Management Co. LLC | 0.06% | Reduce -10.3% | 24,442 | $326K |
| Prelude Capital Management, LLC | 0.03% | New | 24,242 | $323K |
| Citigroup Inc. | 0.00% | Reduce -17.1% | 21,977 | $293K |
| Envestnet Asset Management Inc. | 0.00% | New | 17,740 | $236K |
| Hillsdale Investment Management Inc. | 0.01% | New | 17,003 | $226K |
| CHICAGO TRUST Co NA | 0.04% | No change | 16,700 | $222K |
| XTX Topco Ltd | 0.02% | Add +29.6% | 14,655 | $195K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 13,239 | $176K |
| Morgan Stanley | 0.00% | Add +2695.1% | 13,193 | $176K |
| Engineers Gate Manager LP | 0.00% | New | 12,589 | $168K |
| Atom Investors LP | 0.02% | New | 12,068 | $161K |
| Balyasny Asset Management L.P. | 0.00% | New | 11,850 | $158K |
| Quantum Private Wealth, LLC | 0.05% | No change | 11,500 | $153K |
| Bank of America Corp. | 0.00% | Add +5422.4% | 11,100 | $148K |
| Raymond James Financial Inc. | 0.00% | — | 11,043 | $147K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.04% | Add +18.3% | 10,561 | $141K |
| Jefferies Financial Group Inc. | 0.00% | New | 10,000 | $133K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 6,433 | $86K |
| Point72 (DIFC) Ltd | 0.00% | New | 1,441 | $19K |
| Federated Hermes, Inc. | 0.00% | New | 1,392 | $19K |
| Truvestments Capital LLC | 0.00% | No change | 1,183 | $16K |
| Wells Fargo & Company | 0.00% | New | 1,000 | $13K |
| Lazard Asset Management LLC | 0.00% | New | 1,031 | $13K |
| Royal Bank of Canada | 0.00% | Add +173.4% | 752 | $10K |
| BNP Paribas Financial Markets | 0.00% | No change | 350 | $5K |
| Osaic Holdings, Inc. | 0.00% | Reduce -13.3% | 260 | $3K |
| SBI Securities Co., Ltd. | 0.00% | — | 141 | $2K |
"% of holder's portfolio" is ETON's weight in each manager's 13F, not the share of Eton Pharmaceuticals Inc. the manager owns.