Which hedge funds own ASPI? ASP ISOTOPES INC, Q2 2026 13F holders
24 tracked hedge funds disclosed a position in ASPI (ASP ISOTOPES INC) in their Q2 2026 13F filings, worth $96.4m in total. The largest holder by portfolio weight is Philadelphia Financial Management of San Francisco, LLC at 2.3% of its book. 7 opened a new position this quarter: Persistent Asset Partners Ltd, Aquatic Capital Management LLC, CenterBook Partners LP, Marshall Wace, LLP. 9 exited: Arosa Capital Management LP, Alight Capital Management LP, Scientech Research LLC.
- 24
- 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.
- 9
- Exited this quarter Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
- $7.4m
- Inflow, new holders Combined value of the positions the new holders reported for the quarter.
- $5.8m
- Outflow, exits Combined value the exiting managers reported for the security in their previous filing.
- $96.4m
- Combined value Sum of the holders' reported positions in the security.
- 1.9%
- 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
Exited since the previous filing
| Arosa Capital Management LP | 0.6% | $884k |
| Alight Capital Management LP | 0.4% | $1.3m |
| Scientech Research LLC | 0.1% | $178k |
| Yaupon Capital Management LP | 0.07% | $1.3m |
| Burkehill Global Management, LP | 0.05% | $1.1m |
| Fox Run Management, L.L.C. | 0.02% | $128k |
| Mirabella Financial Services LLP | 0.01% | $98.6k |
| Tudor Investment Corp ET AL | 0.0% | $712k |
| Verition Fund Management LLC | 0.0% | $51.6k |
Ownership over time
Who discovered ASPI first? Beta
The run: Q2 2023 → Q3 2025, ×17
| Philadelphia Financial Management of San Francisco, LLC | Q4 2024 | – | +4.2 pts |
| AWM Investment Company, Inc. | Q4 2024 | – | +2.6 pts |
| Diametric Capital, LP | Q1 2025 | – | +1.6 pts |
| Telemark Asset Management, LLC | Q4 2024 | – | +0.6 pts |
| Encompass Capital Advisors LLC | Q1 2026 | – | +0.5 pts |
Split-adjusted quarter-end prices, excluding dividends. They describe the stock while each manager held it, not the return it earned.