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 |
|---|---|---|---|---|---|
| Allworth Financial LP | 5 | $49 | 0.00% | +5 | New |
| US Bancorp | 20 | $192 | 0.00% | −54−73.0% | Reduced |
| Islay Capital Management, LLC | 39 | $375 | 0.00% | +39 | New |
| The PNC Financial Services Group, Inc. | 78 | $750 | 0.00% | −34−30.4% | Reduced |
| CWM, LLC | 149 | $1.00K | 0.00% | +4+2.8% | Added |
| AdvisorNet Financial, Inc | 120 | $1.15K | 0.00% | +120 | New |
| SRS Capital Advisors, Inc. | 120 | $1.16K | 0.00% | +120 | New |
| Sterling Capital Management LLC | 186 | $1.79K | 0.00% | +32+20.8% | Added |
| Rise Advisors, LLC | 193 | $1.86K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 198 | $1.91K | 0.00% | +30+17.9% | Added |
| SJS Investment Consulting Inc. | 200 | $1.92K | 0.00% | +200 | New |
| Armstrong Advisory Group, Inc | 216 | $2.08K | 0.00% | +216 | New |
| Bryn Mawr Trust Co | 220 | $2.12K | 0.00% | +220 | New |
| CIBC Private Wealth Group, LLC | 300 | $2.89K | 0.00% | 00.0% | Unchanged |
| ORG Partners LLC | 585 | $5.63K | 0.00% | +350+148.9% | Added |
| Optiver Holding B.V. | 588 | $5.66K | 0.00% | +588 | New |
| Signaturefd, LLC | 1,000 | $9.62K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 1,000 | $9.62K | 0.00% | +1,000 | New |
| Parallel Advisors, LLC | 1,536 | $14.8K | 0.00% | −1−0.1% | Reduced |
| Amalgamated Bank | 1,808 | $17.0K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 2,289 | $24.1K | 0.00% | +1,375+150.4% | Added |
| Federation des caisses Desjardins du Quebec | 2,680 | $25.8K | 0.00% | 00.0% | Unchanged |
| Clear Street Markets LLC | 2,778 | $26.7K | 0.01% | +2,778 | New |
| Rockefeller Capital Management L.P. | 3,121 | $30.0K | 0.00% | +3,121 | New |
| Quantbot Technologies LP | 3,560 | $34.2K | 0.00% | +3,560 | New |
| California State Teachers Retirement System | 3,767 | $36.2K | 0.00% | +2+0.1% | Added |
| Ameritas Investment Partners, Inc. | 6,463 | $62.2K | 0.00% | +980+17.9% | Added |
| Close Asset Management Ltd | 7,500 | $72.0K | 0.00% | +7,500 | New |
| Leonteq Securities AG | 8,000 | $77.0K | 0.00% | −12,639−61.2% | Reduced |
| Legal & General Group Plc | 8,377 | $80.6K | 0.00% | +1,953+30.4% | Added |
| Once Capital Management, LLC | 9,600 | $92.4K | 0.03% | +9,600 | New |
| Evelyn Partners Investment Management LLP | 10,000 | $96.2K | 0.00% | +10,000 | New |
| Cubist Systematic Strategies, LLC | 10,512 | $101.1K | 0.00% | +10,512 | New |
| KKM Financial LLC | 12,000 | $115.4K | 0.04% | 00.0% | Unchanged |
| Chicago Capital, LLC | 12,000 | $115.4K | 0.00% | +12,000 | New |
| FNY Investment Advisers, LLC | 12,500 | $120.0K | 0.04% | +11,500+1,150.0% | Added |
| Caitong International Asset Management Co., Ltd | 12,622 | $121.4K | 0.08% | +9,695+331.2% | Added |
| FMR LLC | 12,728 | $122.4K | 0.00% | +2,367+22.8% | Added |
| Cetera Investment Advisers | 12,873 | $123.8K | 0.00% | +12,873 | New |
| ProShare Advisors LLC | 13,101 | $126.0K | 0.00% | +1,448+12.4% | Added |
| LPL Financial LLC | 13,167 | $126.7K | 0.00% | −6,060−31.5% | Reduced |
| Simplex Trading, LLC | 13,397 | $128.0K | 0.00% | −226,753−94.4% | Reduced |
| Voya Investment Management LLC | 13,507 | $129.9K | 0.00% | −2,322−14.7% | Reduced |
| Cresset Asset Management, LLC | 13,606 | $130.9K | 0.00% | +13,606 | New |
| Citigroup Inc | 14,753 | $141.9K | 0.00% | −5,424−26.9% | Reduced |
| BNP Paribas Arbitrage, SA | 14,851 | $142.9K | 0.00% | +9,302+167.6% | Added |
| Perennial Advisors, LLC | 15,000 | $144.3K | 0.02% | 00.0% | Unchanged |
| DRW Securities, LLC | 15,441 | $148.5K | 0.01% | +15,441 | New |
| New York State Common Retirement Fund | 17,100 | $164.5K | 0.00% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 16,497 | $170.7K | 0.00% | +3,219+24.2% | Added |
| Fielder Capital Group LLC | 18,070 | $173.8K | 0.04% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 20,760 | $199.7K | 0.00% | +6,394+44.5% | Added |
| Sig Brokerage, LP | 20,912 | $201.2K | 0.05% | +20,912 | New |
| Mercer Global Advisors Inc | 21,056 | $202.6K | 0.00% | +1,622+8.3% | Added |
| Neuberger Berman Group LLC | 21,763 | $209.4K | 0.00% | +21,763 | New |
| GWM Advisors LLC | 21,900 | $210.7K | 0.00% | +21,900 | New |
| Pekin Hardy Strauss, Inc. | 22,950 | $220.8K | 0.02% | +22,950 | New |
| Point72 Asset Management, L.P. | 23,371 | $224.8K | 0.00% | +23,371 | New |
| Flow Traders U.S. LLC | 23,703 | $228.0K | 0.01% | +23,703 | New |
| PFG Investments, LLC | 23,800 | $229.0K | 0.01% | −2,700−10.2% | Reduced |
| Belvedere Trading LLC | 23,822 | $229.2K | 0.02% | +192+0.8% | Added |
| Manufacturers Life Insurance Company, The | 24,997 | $240.5K | 0.00% | +4,157+19.9% | Added |
| Corsair Capital Management, L.P. | 25,000 | $240.5K | 0.04% | +25,000 | New |
| Tower Research Capital LLC (TRC) | 25,203 | $242.5K | 0.01% | +14,313+131.4% | Added |
| Centiva Capital, LP | 26,244 | $252.5K | 0.02% | +26,244 | New |
| Quest Partners LLC | 28,272 | $272.0K | 0.02% | −6,444−18.6% | Reduced |
| Sanctuary Advisors, LLC | 28,552 | $274.7K | 0.00% | −5,714−16.7% | Reduced |
| Southport Management, L.L.C. | 30,000 | $288.6K | 1.19% | +30,000 | New |
| Canal Insurance CO | 30,000 | $289.0K | 0.06% | +30,000 | New |
| National Bank of Canada | 30,150 | $289.1K | 0.00% | +27,636+1,099.3% | Added |
| Advisory Services Network, LLC | 31,238 | $300.5K | 0.00% | +17,403+125.8% | Added |
| Omers Administration Corp | 32,600 | $313.6K | 0.00% | −89,200−73.2% | Reduced |
| IMC-Chicago, LLC | 33,228 | $319.7K | 0.01% | −42,049−55.9% | Reduced |
| Allegheny Financial Group LTD | 33,498 | $322.3K | 0.06% | −393−1.2% | Reduced |
| Intech Investment Management LLC | 34,362 | $330.6K | 0.00% | +8,606+33.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 35,598 | $342.5K | 0.00% | +3,920+12.4% | Added |
| Advisor Group Holdings, Inc. | 36,951 | $357.7K | 0.00% | +29,451+392.7% | Added |
| Jefferies Financial Group Inc. | 39,526 | $380.2K | 0.00% | +39,526 | New |
| Mariner, LLC | 41,030 | $394.7K | 0.00% | +12,385+43.2% | Added |
| Deutsche Bank AG | 42,701 | $410.8K | 0.00% | +5,702+15.4% | Added |
| Balyasny Asset Management LLC | 42,888 | $412.6K | 0.00% | +42,888 | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 45,000 | $432.9K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 45,238 | $435.2K | 0.00% | +44,200+4,258.2% | Added |
| MetLife Investment Management | 45,717 | $439.8K | 0.00% | +10,820+31.0% | Added |
| Wells Fargo & Company | 47,066 | $452.8K | 0.00% | +17,697+60.3% | Added |
| MML Investors Services, LLC | 48,849 | $469.9K | 0.00% | +1,841+3.9% | Added |
| SBI Securities Co., Ltd. | 51,351 | $494.0K | 0.01% | +30,072+141.3% | Added |
| HRT Financial LP | 54,714 | $526.0K | 0.00% | +54,714 | New |
| Brevan Howard Capital Management LP | 61,120 | $588.0K | 0.01% | +61,120 | New |
| Scientech Research LLC | 64,388 | $619.4K | 0.22% | −4,865−7.0% | Reduced |
| Commonwealth Equity Services, LLC | 65,434 | $629.0K | 0.00% | +12,436+23.5% | Added |
| EAM Investors, LLC | 68,148 | $655.6K | 0.08% | −8,568−11.2% | Reduced |
| Marex Group plc | 68,500 | $659.0K | 0.01% | −6,500−8.7% | Reduced |
| Prelude Capital Management, LLC | 98,396 | $946.6K | 0.07% | −7,056−6.7% | Reduced |
| Alliancebernstein L.P. | 98,870 | $951.1K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 102,287 | $984.0K | 0.00% | +23,293+29.5% | Added |
| Bank of Montreal | 104,372 | $1.00M | 0.00% | +77,372+286.6% | Added |
| Royal Bank of Canada | 107,719 | $1.04M | 0.00% | +83,148+338.4% | Added |
| SPX Equities Gestao de Recursos Ltda | 109,600 | $1.05M | 0.09% | +109,600 | New |
| Farther Finance Advisors, LLC | 111,176 | $1.07M | 0.02% | +15,177+15.8% | Added |