Which hedge funds own ETON? ETON PHARMACEUTICALS INC, Q2 2026 13F holders
31 tracked hedge funds disclosed a position in ETON (ETON PHARMACEUTICALS INC) in their Q2 2026 13F filings, worth $323.6m in total. The largest holder by portfolio weight is Opaleye Management Inc. at 9.4% of its book. 7 opened a new position this quarter: Prospect Capital Advisors, LLC, Persistent Asset Partners Ltd, Y-Intercept (Hong Kong) Ltd, D. E. Shaw & Co., Inc.. 3 exited: Manatuck Hill Partners, LLC, Soleus Capital Management, L.P., Millennium Management LLC.
- 31
- Holders Tracked managers whose filing for the quarter reports a long equity position in the security.
- 7
- New this quarter Holders whose previous filing (at most two quarters earlier) did not report the security.
- 3
- Exited this quarter Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
- $17.6m
- Inflow, new holders Combined value of the positions the new holders reported for the quarter.
- $5.5m
- Outflow, exits Combined value the exiting managers reported for the security in their previous filing.
- $324m
- Combined value Sum of the holders' reported positions in the security.
- 2.5%
- Share of managers holding Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.
Holders, Q2 2026
| Opaleye Management Inc. Hedge fund | 9.4% | 0.0% | held |
| Cannell Capital LLC Hedge fund | 4.3% | −50% | reduced |
| EcoR1 Capital, LLC Hedge fund | 3.9% | 0.0% | held |
| Pillsbury Lake Capital LLC Hedge fund | 3.8% | +6.1% | added |
| Panoramic Capital, LLC Hedge fund | 3.2% | +13% | added |
| Prospect Capital Advisors, LLC Hedge fund | 2.6% | – | new |
| Nantahala Capital Management, LLC Hedge fund | 2.6% | 0.0% | held |
| Aristides Capital LLC Hedge fund | 1.3% | −22% | reduced |
| Prelude Capital Management, LLC Hedge fund | 0.4% | −27% | reduced |
| Diametric Capital, LP Hedge fund | 0.3% | −53% | reduced |
| Numerai GP LLC Hedge fund | 0.2% | +88% | added |
| Aquatic Capital Management LLC Hedge fund | 0.05% | +263% | added |
| Boothbay Fund Management, LLC Hedge fund | 0.04% | +3.4% | added |
| Woodline Partners LP Hedge fund | 0.03% | +82% | added |
| Persistent Asset Partners Ltd Hedge fund | 0.03% | – | new |
| PDT Partners, LLC Hedge fund | 0.03% | 0.0% | held |
| Y-Intercept (Hong Kong) Ltd Hedge fund | 0.02% | – | new |
| Walleye Capital LLC Hedge fund | 0.01% | +5.2% | added |
| Polen Capital Long-only investor | 0.01% | +51% | added |
| Marshall Wace, LLP Hedge fund | 0.01% | +201% | added |
| Quantbot Technologies LP Hedge fund | 0.01% | −42% | reduced |
| Voleon Capital Management LP Hedge fund | 0.0% | −46% | reduced |
| D. E. Shaw & Co., Inc. Hedge fund | 0.0% | – | new |
| Squarepoint Ops LLC Hedge fund | 0.0% | – | new |
| Brevan Howard Capital Management LP Hedge fund | 0.0% | −65% | reduced |
| Two Sigma Investments, LP Hedge fund | 0.0% | +9.3% | added |
| Jain Global LLC Hedge fund | 0.0% | −13% | reduced |
| Renaissance Technologies LLC Hedge fund | 0.0% | −68% | reduced |
| Point72 Asset Management, L.P. Hedge fund | 0.0% | – | new |
| Citadel Advisors LLC Hedge fund | 0.0% | −55% | reduced |
| Quarry LP Hedge fund | 0.0% | – | new |
Exited since the previous filing
| Manatuck Hill Partners, LLC | 0.3% | $987k |
| Soleus Capital Management, L.P. | 0.2% | $4.1m |
| Millennium Management LLC | 0.0% | $369k |
Ownership over time
Who discovered ETON first? Beta
The run: Q2 2024 → Q3 2026, ×16
| Opaleye Management Inc. high conviction | Q3 2020 | 1.8% | +14.6 pts |
| Cannell Capital LLC high conviction | Q1 2025 | – | +4.2 pts |
| Nantahala Capital Management, LLC | Q3 2025 | 0.3% | +2.6 pts |
| EcoR1 Capital, LLC | Q3 2025 | – | +2.5 pts |
| Aristides Capital LLC | Q4 2024 | 0.3% | +2.2 pts |
| Diametric Capital, LP | Q1 2020 | – | +2.1 pts |
| Pillsbury Lake Capital LLC | Q1 2026 | – | +1.9 pts |
| AWM Investment Company, Inc. | Q4 2018 | – | +0.2 pts |
Split-adjusted quarter-end prices, excluding dividends. They describe the stock while each manager held it, not the return it earned.