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, Q4 2025
Institutional positions in ASP Isotopes Inc. as of Dec 31, 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
- 173
- +18 vs. Q3 2025
- Shares held
- 58.6M
- +5.67M (+10.7%) vs. Q3 2025
- Total value
- $313.2M
- −$195.4M (−38.4%) vs. Q3 2025
- New holders
- 49
- 77 more added
- Sold out
- 31
- 35 more reduced
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding ASP Isotopes Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Squarepoint Ops LLC | 27,481 | $147.0K | 0.00% | −597,326−95.6% | Reduced |
| Centiva Capital, LP | 27,186 | $145.4K | 0.01% | +942+3.6% | Added |
| Pekin Hardy Strauss, Inc. | 26,700 | $142.8K | 0.01% | +3,750+16.3% | Added |
| Fortitude Advisory Group L.L.C. | 25,995 | $139.1K | 0.06% | +25,995 | New |
| Mercer Global Advisors Inc | 25,550 | $136.7K | 0.00% | +4,494+21.3% | Added |
| Cresset Asset Management, LLC | 25,034 | $133.9K | 0.00% | +11,428+84.0% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 23,600 | $126.3K | 0.00% | +23,600 | New |
| Patriot Financial Group Insurance Agency, LLC | 21,825 | $116.8K | 0.01% | +21,825 | New |
| Arizona State Retirement System | 21,676 | $116.0K | 0.00% | +21,676 | New |
| Neuberger Berman Group LLC | 21,427 | $114.6K | 0.00% | −336−1.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 20,760 | $111.1K | 0.00% | 00.0% | Unchanged |
| Sanctuary Advisors, LLC | 20,150 | $107.8K | 0.00% | −8,402−29.4% | Reduced |
| BNP Paribas Arbitrage, SA | 20,069 | $107.4K | 0.00% | +5,218+35.1% | Added |
| Scientech Research LLC | 18,775 | $100.4K | 0.06% | −45,613−70.8% | Reduced |
| Integrated Wealth Concepts LLC | 18,508 | $99.0K | 0.00% | +18,508 | New |
| Fielder Capital Group LLC | 18,066 | $96.7K | 0.02% | −40.0% | Reduced |
| Tocqueville Asset Management L.P. | 17,000 | $91.0K | 0.00% | +17,000 | New |
| ProShare Advisors LLC | 16,904 | $90.4K | 0.00% | +3,803+29.0% | Added |
| KLP Kapitalforvaltning AS | 16,700 | $89.3K | 0.00% | +16,700 | New |
| Voya Investment Management LLC | 16,122 | $86.3K | 0.00% | +2,615+19.4% | Added |
| J.W. Cole Advisors, Inc. | 16,663 | $85.4K | 0.00% | +16,663 | New |
| Atomi Financial Group, Inc. | 15,334 | $82.0K | 0.00% | +15,334 | New |
| Corsair Capital Management, L.P. | 15,000 | $80.3K | 0.01% | −10,000−40.0% | Reduced |
| Perennial Advisors, LLC | 15,000 | $80.3K | 0.01% | 00.0% | Unchanged |
| MML Investors Services, LLC | 14,586 | $78.0K | 0.00% | −34,263−70.1% | Reduced |
| Inscription Capital, LLC | 14,360 | $76.8K | 0.01% | +14,360 | New |
| New York State Common Retirement Fund | 14,300 | $76.5K | 0.00% | −2,800−16.4% | Reduced |
| Two Sigma Securities, LLC | 14,275 | $76.4K | 0.01% | +14,275 | New |
| SummitTX Capital, L.P. | 14,128 | $75.6K | 0.00% | +14,128 | New |
| Caption Management, LLC | 13,800 | $73.8K | 0.00% | +13,800 | New |
| Steward Partners Investment Advisory, LLC | 13,765 | $73.6K | 0.00% | +13,765 | New |
| Guggenheim Capital LLC | 13,415 | $71.8K | 0.00% | +13,415 | New |
| FMR LLC | 12,710 | $68.0K | 0.00% | −18−0.1% | Reduced |
| DRW Securities, LLC | 12,350 | $66.1K | 0.01% | −3,091−20.0% | Reduced |
| Chicago Capital, LLC | 12,000 | $64.2K | 0.00% | 00.0% | Unchanged |
| KKM Financial LLC | 12,000 | $64.2K | 0.01% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 11,334 | $60.6K | 0.00% | +11,334 | New |
| Victory Capital Management Inc | 11,234 | $60.1K | 0.00% | +11,234 | New |
| Creative Planning | 10,429 | $55.8K | 0.00% | −306,336−96.7% | Reduced |
| PEAK6 LLC | 9,280 | $49.6K | 0.00% | +9,280 | New |
| IFP Advisors, Inc | 9,000 | $48.1K | 0.00% | +9,000 | New |
| Close Asset Management Ltd | 7,500 | $40.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 6,463 | $34.6K | 0.00% | 00.0% | Unchanged |
| Evelyn Partners Investment Management LLP | 5,000 | $26.8K | 0.00% | −5,000−50.0% | Reduced |
| Jones Financial Companies LLLP | 4,883 | $26.1K | 0.00% | +2,594+113.3% | Added |
| Rockefeller Capital Management L.P. | 4,121 | $22.0K | 0.00% | +1,000+32.0% | Added |
| Amalgamated Bank | 2,906 | $16.0K | 0.00% | +1,098+60.7% | Added |
| Federation des caisses Desjardins du Quebec | 2,180 | $11.7K | 0.00% | −500−18.7% | Reduced |
| Bank of New Hampshire | 2,000 | $10.7K | 0.00% | +2,000 | New |
| Tower Research Capital LLC (TRC) | 1,627 | $8.70K | 0.00% | −23,576−93.5% | Reduced |
| Parallel Advisors, LLC | 1,536 | $8.22K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 1,124 | $6.01K | 0.00% | +124+12.4% | Added |
| Nisa Investment Advisors, LLC | 1,038 | $5.55K | 0.00% | −44,200−97.7% | Reduced |
| Global Retirement Partners, LLC | 1,000 | $5.35K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 921 | $5.00K | 0.00% | +772+518.1% | Added |
| Hanson & Doremus Investment Management | 1,000 | $5.00K | 0.00% | +1,000 | New |
| Strive Financial Group ,LLC | 742 | $3.97K | 0.00% | +742 | New |
| Copia Wealth Management | 730 | $3.91K | 0.00% | +730 | New |
| Sterling Capital Management LLC | 576 | $3.08K | 0.00% | +390+209.7% | Added |
| Optiver Holding B.V. | 409 | $2.19K | 0.00% | −179−30.4% | Reduced |
| ORG Partners LLC | 387 | $2.07K | 0.00% | −198−33.8% | Reduced |
| CIBC Private Wealth Group, LLC | 300 | $1.60K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 283 | $1.51K | 0.00% | +163+135.8% | Added |
| GAMMA Investing LLC | 256 | $1.37K | 0.00% | +58+29.3% | Added |
| Armstrong Advisory Group, Inc | 216 | $1.16K | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 200 | $1.07K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 163 | $872 | 0.00% | +163 | New |
| The PNC Financial Services Group, Inc. | 93 | $498 | 0.00% | +15+19.2% | Added |
| Allworth Financial LP | 50 | $268 | 0.00% | +45+900.0% | Added |
| Islay Capital Management, LLC | 39 | $209 | 0.00% | 00.0% | Unchanged |
| Quarry LP | 34 | $182 | 0.00% | +34 | New |
| Massmutual Trust Co FSB | 17 | $91 | 0.00% | +17 | New |
| Rothschild Investment LLC | 6 | $32 | 0.00% | +6 | New |
| Capital Research Global Investors | 0 | $0 | 0.00% | −2,043,567−100.0% | Sold out |
| Philadelphia Financial Management of San Francisco, LLC | 0 | $0 | 0.00% | −1,661,494−100.0% | Sold out |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −1,419,837−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −940,500−100.0% | Sold out |
| Sara-Bay Financial | 0 | $0 | 0.00% | −903,103−100.0% | Sold out |
| Encompass Capital Advisors LLC | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −417,908−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −245,985−100.0% | Sold out |
| Concentric Capital Strategies, LP | 0 | $0 | 0.00% | −218,054−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −201,200−100.0% | Sold out |
| Baird Financial Group, Inc. | 0 | $0 | 0.00% | −192,308−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −139,782−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −120,131−100.0% | Sold out |
| SPX Equities Gestao de Recursos Ltda | 0 | $0 | 0.00% | −109,600−100.0% | Sold out |
| Alliancebernstein L.P. | 0 | $0 | 0.00% | −98,870−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −68,148−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −54,714−100.0% | Sold out |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0 | $0 | 0.00% | −45,000−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −41,030−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −32,600−100.0% | Sold out |
| Belvedere Trading LLC | 0 | $0 | 0.00% | −23,822−100.0% | Sold out |
| Flow Traders U.S. LLC | 0 | $0 | 0.00% | −23,703−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −23,371−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −21,900−100.0% | Sold out |
| Sig Brokerage, LP | 0 | $0 | 0.00% | −20,912−100.0% | Sold out |
| Once Capital Management, LLC | 0 | $0 | 0.00% | −9,600−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −2,778−100.0% | Sold out |