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
- 53.3M
- +11.8M (+28.4%) vs. Q2 2025
- Total value
- $512.6M
- +$207.0M (+67.7%) vs. Q2 2025
- New holders
- 45
- 70 more added
- Sold out
- 17
- 31 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 | $284.2M |
| Q4 2025 | 173 | $315.4M |
| Q3 2025 | 157 | $512.6M |
| Q2 2025 | 130 | $305.7M |
| Q1 2025 | 100 | $152.8M |
| Q4 2024 | 95 | $147.3M |
| Q3 2024 | 69 | $62.5M |
| Q2 2024 | 51 | $26.9M |
| Q1 2024 | 31 | $16.5M |
| 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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,460,992 | $52.5M | 0.00% | +1,432,277+35.6% | Added |
| Vanguard Group Inc | 4,516,763 | $43.5M | 0.00% | +1,241,024+37.9% | Added |
| Rovida Investment Management Ltd | 3,200,000 | $30.7M | 3.48% | +1,000,000+45.5% | Added |
| AWM Investment Company, Inc. | 2,958,596 | $28.5M | 2.67% | −972,590−24.7% | Reduced |
| Alyeska Investment Group, L.P. | 2,822,695 | $27.2M | 0.08% | −1,357,239−32.5% | Reduced |
| Capital Research Global Investors | 2,043,567 | $19.7M | 0.00% | −824,495−28.7% | Reduced |
| Geode Capital Management, LLC | 1,862,455 | $17.9M | 0.00% | +514,383+38.2% | Added |
| Philadelphia Financial Management of San Francisco, LLC | 1,661,494 | $16.0M | 3.20% | −1,008,717−37.8% | Reduced |
| Driehaus Capital Management LLC | 1,419,837 | $13.7M | 0.10% | +14,423+1.0% | Added |
| State Street Corp | 1,405,732 | $13.5M | 0.00% | +291,532+26.2% | Added |
| Susquehanna International Group, LLP | 1,341,783 | $12.9M | 0.02% | +1,239,492+1,211.7% | Added |
| Telemark Asset Management, LLC | 1,325,000 | $12.7M | 1.21% | −100,000−7.0% | Reduced |
| Marshall Wace, LLP | 1,279,121 | $12.3M | 0.01% | +1,245,184+3,669.1% | Added |
| Jane Street Group, LLC | 1,218,717 | $11.7M | 0.01% | +1,069,283+715.6% | Added |
| Exchange Traded Concepts, LLC | 1,206,280 | $11.6M | 0.11% | −97,134−7.5% | Reduced |
| Citadel Advisors LLC | 1,165,765 | $11.2M | 0.01% | +1,020,562+702.9% | Added |
| Price T Rowe Associates Inc | 1,047,758 | $10.1M | 0.00% | +1,021,161+3,839.4% | Added |
| UBS Group AG | 961,292 | $9.25M | 0.00% | −466,984−32.7% | Reduced |
| Jump Financial, LLC | 940,500 | $9.05M | 0.11% | +940,500 | New |
| Sara-Bay Financial | 903,103 | $8.69M | 2.43% | +903,103 | New |
| JPMorgan Chase & Co | 749,432 | $7.21M | 0.00% | +530,327+242.0% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 663,939 | $6.39M | 0.02% | −1,301,545−66.2% | Reduced |
| Charles Schwab Investment Management Inc | 661,961 | $6.37M | 0.00% | +487,033+278.4% | Added |
| Group One Trading, L.P. | 628,243 | $6.04M | 0.18% | −78,545−11.1% | Reduced |
| Squarepoint Ops LLC | 624,807 | $6.01M | 0.01% | +624,807 | New |
| Northern Trust Corp | 600,049 | $5.77M | 0.00% | +166,761+38.5% | Added |
| Encompass Capital Advisors LLC | 500,000 | $4.81M | 0.22% | +500,000 | New |
| Tudor Investment Corp Et Al | 460,685 | $4.43M | 0.03% | +125,687+37.5% | Added |
| Morgan Stanley | 439,753 | $4.23M | 0.00% | −11,576−2.6% | Reduced |
| Voloridge Investment Management, LLC | 417,908 | $4.02M | 0.01% | +192,659+85.5% | Added |
| Goldman Sachs Group Inc | 408,752 | $3.93M | 0.00% | +380,303+1,336.8% | Added |
| Verition Fund Management LLC | 363,765 | $3.50M | 0.02% | +293,506+417.7% | Added |
| Diametric Capital, LP | 355,680 | $3.42M | 1.27% | +86,153+32.0% | Added |
| Two Sigma Investments, LP | 337,245 | $3.24M | 0.00% | −5,667−1.7% | Reduced |
| AQR Capital Management LLC | 328,022 | $3.16M | 0.00% | +313,987+2,237.2% | Added |
| Gsa Capital Partners LLP | 320,236 | $3.08M | 0.26% | −64,090−16.7% | Reduced |
| Creative Planning | 316,765 | $3.05M | 0.00% | +143,995+83.3% | Added |
| CAPROCK Group, Inc. | 296,000 | $2.75M | 0.07% | +296,000 | New |
| Millennium Management LLC | 245,985 | $2.37M | 0.00% | +213,704+662.0% | Added |
| Rathbone Brothers plc | 237,064 | $2.28M | 0.01% | +28,915+13.9% | Added |
| Polen Capital Management LLC | 232,913 | $2.24M | 0.01% | +57,775+33.0% | Added |
| Barclays PLC | 232,364 | $2.24M | 0.00% | +56,416+32.1% | Added |
| Concentric Capital Strategies, LP | 218,054 | $2.10M | 0.10% | +218,054 | New |
| Bank of New York Mellon Corp | 211,604 | $2.04M | 0.00% | +58,450+38.2% | Added |
| Penn Capital Management Co Inc | 202,144 | $1.94M | 0.15% | +183,479+983.0% | Added |
| Renaissance Technologies LLC | 201,200 | $1.94M | 0.00% | +201,200 | New |
| Moore Capital Management, LP | 200,000 | $1.92M | 0.04% | +200,000 | New |
| Schonfeld Strategic Advisors LLC | 199,847 | $1.92M | 0.01% | +199,847 | New |
| Baird Financial Group, Inc. | 192,308 | $1.85M | 0.00% | +192,308 | New |
| Nuveen, LLC | 167,375 | $1.61M | 0.00% | +35,378+26.8% | Added |
| Shay Capital LLC | 148,000 | $1.42M | 0.26% | +104,500+240.2% | Added |
| Invesco Ltd. | 143,307 | $1.38M | 0.00% | −327,912−69.6% | Reduced |
| XTX Topco Ltd | 139,782 | $1.34M | 0.07% | +115,627+478.7% | Added |
| Bank of America Corp | 128,283 | $1.23M | 0.00% | −4,273−3.2% | Reduced |
| Russell Investments Group, Ltd. | 126,578 | $1.22M | 0.00% | +117,154+1,243.1% | Added |
| Virtu Financial LLC | 120,131 | $1.16M | 0.06% | +26,844+28.8% | Added |
| Stifel Financial Corp | 117,952 | $1.13M | 0.00% | +79,500+206.8% | Added |
| Farther Finance Advisors, LLC | 111,176 | $1.07M | 0.02% | +15,177+15.8% | Added |
| SPX Equities Gestao de Recursos Ltda | 109,600 | $1.05M | 0.09% | +109,600 | New |
| Royal Bank of Canada | 107,719 | $1.04M | 0.00% | +58,577+119.2% | Added |
| Bank of Montreal | 104,372 | $1.00M | 0.00% | +77,372+286.6% | Added |
| Rhumbline Advisers | 102,287 | $984.0K | 0.00% | +23,293+29.5% | Added |
| Alliancebernstein L.P. | 98,870 | $951.1K | 0.00% | 00.0% | Unchanged |
| Prelude Capital Management, LLC | 98,396 | $946.6K | 0.07% | −7,056−6.7% | Reduced |
| Marex Group plc | 68,500 | $659.0K | 0.01% | −6,500−8.7% | Reduced |
| EAM Investors, LLC | 68,148 | $655.6K | 0.08% | −8,568−11.2% | Reduced |
| Commonwealth Equity Services, LLC | 65,434 | $629.0K | 0.00% | +12,436+23.5% | Added |
| Scientech Research LLC | 64,388 | $619.4K | 0.22% | −4,865−7.0% | Reduced |
| Brevan Howard Capital Management LP | 61,120 | $588.0K | 0.01% | +61,120 | New |
| HRT Financial LP | 54,714 | $526.0K | 0.00% | +54,714 | New |
| SBI Securities Co., Ltd. | 51,351 | $494.0K | 0.01% | +30,072+141.3% | Added |
| MML Investors Services, LLC | 48,849 | $469.9K | 0.00% | +1,841+3.9% | Added |
| Wells Fargo & Company | 47,066 | $452.8K | 0.00% | +17,697+60.3% | Added |
| MetLife Investment Management | 45,717 | $439.8K | 0.00% | +10,820+31.0% | Added |
| Nisa Investment Advisors, LLC | 45,238 | $435.2K | 0.00% | +44,200+4,258.2% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 45,000 | $432.9K | 0.00% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 42,888 | $412.6K | 0.00% | +42,888 | New |
| Deutsche Bank AG | 42,701 | $410.8K | 0.00% | +5,702+15.4% | Added |
| Mariner, LLC | 41,030 | $394.7K | 0.00% | +12,385+43.2% | Added |
| Jefferies Financial Group Inc. | 39,526 | $380.2K | 0.00% | +39,526 | New |
| Advisor Group Holdings, Inc. | 36,951 | $357.7K | 0.00% | +29,451+392.7% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 35,598 | $342.5K | 0.00% | +3,920+12.4% | Added |
| Sanctuary Advisors, LLC | 41,736 | $336.5K | 0.00% | +7,470+21.8% | Added |
| Intech Investment Management LLC | 34,362 | $330.6K | 0.00% | +8,606+33.4% | Added |
| Allegheny Financial Group LTD | 33,498 | $322.3K | 0.06% | −393−1.2% | Reduced |
| IMC-Chicago, LLC | 33,228 | $319.7K | 0.01% | −42,049−55.9% | Reduced |
| Omers Administration Corp | 32,600 | $313.6K | 0.00% | −89,200−73.2% | Reduced |
| Advisory Services Network, LLC | 31,238 | $300.5K | 0.00% | +17,403+125.8% | Added |
| National Bank of Canada | 30,150 | $289.1K | 0.00% | +27,636+1,099.3% | Added |
| Canal Insurance CO | 30,000 | $289.0K | 0.06% | +30,000 | New |
| Southport Management, L.L.C. | 30,000 | $288.6K | 1.19% | +30,000 | New |
| Quest Partners LLC | 28,272 | $272.0K | 0.02% | −6,444−18.6% | Reduced |
| Centiva Capital, LP | 26,244 | $252.5K | 0.02% | +26,244 | New |
| Tower Research Capital LLC (TRC) | 25,203 | $242.5K | 0.01% | +14,313+131.4% | Added |
| Corsair Capital Management, L.P. | 25,000 | $240.5K | 0.04% | +25,000 | New |
| Manufacturers Life Insurance Company, The | 24,997 | $240.5K | 0.00% | +4,157+19.9% | Added |
| Belvedere Trading LLC | 23,822 | $229.2K | 0.02% | +192+0.8% | Added |
| PFG Investments, LLC | 23,800 | $229.0K | 0.01% | −2,700−10.2% | Reduced |
| Flow Traders U.S. LLC | 23,703 | $228.0K | 0.01% | +23,703 | New |
| Point72 Asset Management, L.P. | 23,371 | $224.8K | 0.00% | +23,371 | New |