ASP Isotopes Inc.
ASPI- Exchange
- Nasdaq
- Industry
- Miscellaneous Chemical Products
- SEC CIK
- 0001921865
In the last 90 days, ASP Isotopes Inc. insiders filed 0 open-market purchases and 8 sales; 185 institutions reported holding it in 13F filings for Q2 2026, worth $406.1M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in ASP Isotopes Inc. as of Sep 30, 2025. 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
- 157
- +28 vs. Q2 2025
- Shares held
- 52.9M
- +11.4M (+27.5%) vs. Q2 2025
- Total value
- $508.9M
- +$203.5M (+66.6%) vs. Q2 2025
- New holders
- 45
- 69 more added
- Sold out
- 17
- 32 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ASPI 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 | 185 | $406.1M |
| Q1 2026 | 177 | $282.5M |
| Q4 2025 | 173 | $313.2M |
| Q3 2025 | 157 | $508.9M |
| Q2 2025 | 130 | $305.5M |
| Q1 2025 | 100 | $152.8M |
| Q4 2024 | 95 | $147.3M |
| Q3 2024 | 69 | $62.4M |
| Q2 2024 | 51 | $26.9M |
| Q1 2024 | 31 | $15.6M |
| Q4 2023 | 19 | $3.01M |
| Q3 2023 | 11 | $292.9K |
| Q2 2023 | 4 | $1.02M |
| Q1 2023 | 6 | $2.77M |
| Q4 2022 | 3 | $75.3K |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding ASP Isotopes Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Stifel Financial Corp | 117,952 | $1.13M | 0.00% | +79,500+206.8% | Added |
| Virtu Financial LLC | 120,131 | $1.16M | 0.06% | +26,844+28.8% | Added |
| Russell Investments Group, Ltd. | 126,578 | $1.22M | 0.00% | +117,154+1,243.1% | Added |
| Bank of America Corp | 128,283 | $1.23M | 0.00% | −4,273−3.2% | Reduced |
| XTX Topco Ltd | 139,782 | $1.34M | 0.07% | +115,627+478.7% | Added |
| Invesco Ltd. | 143,307 | $1.38M | 0.00% | −327,912−69.6% | Reduced |
| Shay Capital LLC | 148,000 | $1.42M | 0.26% | +104,500+240.2% | Added |
| Nuveen, LLC | 167,375 | $1.61M | 0.00% | +35,378+26.8% | Added |
| Baird Financial Group, Inc. | 192,308 | $1.85M | 0.00% | +192,308 | New |
| Schonfeld Strategic Advisors LLC | 199,847 | $1.92M | 0.01% | +199,847 | New |
| Moore Capital Management, LP | 200,000 | $1.92M | 0.04% | +200,000 | New |
| Renaissance Technologies LLC | 201,200 | $1.94M | 0.00% | +201,200 | New |
| Penn Capital Management Co Inc | 202,144 | $1.94M | 0.15% | +183,479+983.0% | Added |
| Bank of New York Mellon Corp | 211,604 | $2.04M | 0.00% | +58,450+38.2% | Added |
| Concentric Capital Strategies, LP | 218,054 | $2.10M | 0.10% | +218,054 | New |
| Barclays PLC | 232,364 | $2.24M | 0.00% | +56,416+32.1% | Added |
| Polen Capital Management LLC | 232,913 | $2.24M | 0.01% | +57,775+33.0% | Added |
| Rathbone Brothers plc | 237,064 | $2.28M | 0.01% | +28,915+13.9% | Added |
| Millennium Management LLC | 245,985 | $2.37M | 0.00% | +213,704+662.0% | Added |
| CAPROCK Group, Inc. | 296,000 | $2.75M | 0.07% | +296,000 | New |
| Creative Planning | 316,765 | $3.05M | 0.00% | +143,995+83.3% | Added |
| Gsa Capital Partners LLP | 320,236 | $3.08M | 0.26% | −64,090−16.7% | Reduced |
| AQR Capital Management LLC | 328,022 | $3.16M | 0.00% | +313,987+2,237.2% | Added |
| Two Sigma Investments, LP | 337,245 | $3.24M | 0.00% | −5,667−1.7% | Reduced |
| Diametric Capital, LP | 355,680 | $3.42M | 1.27% | +86,153+32.0% | Added |
| Verition Fund Management LLC | 363,765 | $3.50M | 0.02% | +293,506+417.7% | Added |
| JPMorgan Chase & Co | 374,716 | $3.60M | 0.00% | +155,611+71.0% | Added |
| Goldman Sachs Group Inc | 408,752 | $3.93M | 0.00% | +380,303+1,336.8% | Added |
| Voloridge Investment Management, LLC | 417,908 | $4.02M | 0.01% | +192,659+85.5% | Added |
| Morgan Stanley | 439,753 | $4.23M | 0.00% | −11,576−2.6% | Reduced |
| Tudor Investment Corp Et Al | 460,685 | $4.43M | 0.03% | +125,687+37.5% | Added |
| Encompass Capital Advisors LLC | 500,000 | $4.81M | 0.22% | +500,000 | New |
| Northern Trust Corp | 600,049 | $5.77M | 0.00% | +166,761+38.5% | Added |
| Squarepoint Ops LLC | 624,807 | $6.01M | 0.01% | +624,807 | New |
| Group One Trading, L.P. | 628,243 | $6.04M | 0.18% | −78,545−11.1% | Reduced |
| Charles Schwab Investment Management Inc | 661,961 | $6.37M | 0.00% | +487,033+278.4% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 663,939 | $6.39M | 0.02% | −1,301,545−66.2% | Reduced |
| Sara-Bay Financial | 903,103 | $8.69M | 2.43% | +903,103 | New |
| Jump Financial, LLC | 940,500 | $9.05M | 0.11% | +940,500 | New |
| UBS Group AG | 961,292 | $9.25M | 0.00% | −466,984−32.7% | Reduced |
| Price T Rowe Associates Inc | 1,047,758 | $10.1M | 0.00% | +1,021,161+3,839.4% | Added |
| Citadel Advisors LLC | 1,165,765 | $11.2M | 0.01% | +1,020,562+702.9% | Added |
| Exchange Traded Concepts, LLC | 1,206,280 | $11.6M | 0.11% | −97,134−7.5% | Reduced |
| Jane Street Group, LLC | 1,218,717 | $11.7M | 0.01% | +1,069,283+715.6% | Added |
| Marshall Wace, LLP | 1,279,121 | $12.3M | 0.01% | +1,245,184+3,669.1% | Added |
| Telemark Asset Management, LLC | 1,325,000 | $12.7M | 1.21% | −100,000−7.0% | Reduced |
| Susquehanna International Group, LLP | 1,341,783 | $12.9M | 0.02% | +1,239,492+1,211.7% | Added |
| State Street Corp | 1,405,732 | $13.5M | 0.00% | +291,532+26.2% | Added |
| Driehaus Capital Management LLC | 1,419,837 | $13.7M | 0.10% | +14,423+1.0% | Added |
| Philadelphia Financial Management of San Francisco, LLC | 1,661,494 | $16.0M | 3.20% | −1,008,717−37.8% | Reduced |
| Geode Capital Management, LLC | 1,862,455 | $17.9M | 0.00% | +514,383+38.2% | Added |
| Capital Research Global Investors | 2,043,567 | $19.7M | 0.00% | −824,495−28.7% | Reduced |
| Alyeska Investment Group, L.P. | 2,822,695 | $27.2M | 0.08% | −1,357,239−32.5% | Reduced |
| AWM Investment Company, Inc. | 2,958,596 | $28.5M | 2.67% | −972,590−24.7% | Reduced |
| Rovida Investment Management Ltd | 3,200,000 | $30.7M | 3.48% | +1,000,000+45.5% | Added |
| Vanguard Group Inc | 4,516,763 | $43.5M | 0.00% | +1,241,024+37.9% | Added |
| BlackRock, Inc. | 5,460,992 | $52.5M | 0.00% | +1,432,277+35.6% | Added |
| Activest Wealth Management | 0 | $0 | 0.00% | −480−100.0% | Sold out |
| Options Solutions, LLC | 0 | $0 | 0.00% | −175,138−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −81,700−100.0% | Sold out |
| Destination Wealth Management | 0 | $0 | 0.00% | −56,964−100.0% | Sold out |
| Saranac Partners Ltd | 0 | $0 | 0.00% | −44,195−100.0% | Sold out |
| Harbour Capital Advisors, LLC | 0 | $0 | 0.00% | −33,025−100.0% | Sold out |
| Apis Capital Advisors, LLC | 0 | $0 | 0.00% | −24,000−100.0% | Sold out |
| National Asset Management, Inc. | 0 | $0 | 0.00% | −16,380−100.0% | Sold out |
| FORA Capital, LLC | 0 | $0 | 0.00% | −14,569−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −11,311−100.0% | Sold out |
| Pale Fire Capital SE | 0 | $0 | 0.00% | −10,300−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −1,697−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −1,125−100.0% | Sold out |
| Ameritas Advisory Services, LLC | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −129−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| Rothschild Investment LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Avantax Advisory Services, Inc. | – | – | – | – | Not filed |