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, Q1 2026
Institutional positions in ASP Isotopes Inc. as of Mar 31, 2026. 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
- 177
- +9 vs. Q4 2025
- Shares held
- 63.8M
- +11.8M (+22.6%) vs. Q4 2025
- Total value
- $282.5M
- +$4.00M (+1.4%) vs. Q4 2025
- New holders
- 42
- 78 more added
- Sold out
- 33
- 40 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding ASP Isotopes Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | 30,503 | $134.8K | 0.00% | +2,470+8.8% | Added |
| Arizona State Retirement System | 29,210 | $129.1K | 0.00% | +7,534+34.8% | Added |
| New York State Common Retirement Fund | 29,200 | $129.1K | 0.00% | +14,900+104.2% | Added |
| Fox Run Management, L.L.C. | 30,410 | $128.3K | 0.02% | +30,410 | New |
| Vanguard Investments Australia, Ltd. | 28,118 | $124.3K | 0.00% | +28,118 | New |
| BNP Paribas Arbitrage, SA | 27,656 | $122.2K | 0.00% | +7,587+37.8% | Added |
| Cresset Asset Management, LLC | 27,284 | $120.6K | 0.00% | +2,250+9.0% | Added |
| Intech Investment Management LLC | 26,451 | $116.9K | 0.00% | −3,065−10.4% | Reduced |
| Jump Financial, LLC | 26,276 | $116.1K | 0.00% | +26,276 | New |
| Fortitude Advisory Group L.L.C. | 26,035 | $115.1K | 0.05% | +40+0.2% | Added |
| Caitong International Asset Management Co., Ltd | 25,297 | $111.8K | 0.02% | −9,686−27.7% | Reduced |
| Sanctuary Advisors, LLC | 24,615 | $108.8K | 0.00% | +4,465+22.2% | Added |
| AQR Capital Management LLC | 23,797 | $105.2K | 0.00% | −5,559−18.9% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 23,600 | $104.3K | 0.00% | 00.0% | Unchanged |
| Mirabella Financial Services LLP | 22,311 | $98.6K | 0.01% | +22,311 | New |
| Cambridge Investment Research Advisors, Inc. | 21,531 | $95.0K | 0.00% | +21,531 | New |
| Tocqueville Asset Management L.P. | 20,000 | $88.4K | 0.00% | +3,000+17.6% | Added |
| Neuberger Berman Group LLC | 19,972 | $88.3K | 0.00% | −1,455−6.8% | Reduced |
| Voya Investment Management LLC | 19,148 | $84.6K | 0.00% | +3,026+18.8% | Added |
| Skopos Labs, Inc. | 18,868 | $83.4K | 0.00% | +18,868 | New |
| Guggenheim Capital LLC | 18,230 | $80.6K | 0.00% | +4,815+35.9% | Added |
| Fielder Capital Group LLC | 18,083 | $79.9K | 0.02% | +17+0.1% | Added |
| Brookwood Investment Group LLC | 18,000 | $79.6K | 0.01% | +18,000 | New |
| Quantbot Technologies LP | 17,810 | $78.7K | 0.00% | −378,789−95.5% | Reduced |
| Brevan Howard Capital Management LP | 17,466 | $77.2K | 0.00% | −54,534−75.7% | Reduced |
| Prudential Financial Inc | 16,840 | $74.4K | 0.00% | +16,840 | New |
| Tower Research Capital LLC (TRC) | 16,578 | $73.3K | 0.00% | +14,951+918.9% | Added |
| ProShare Advisors LLC | 16,481 | $72.8K | 0.00% | −423−2.5% | Reduced |
| Perennial Advisors, LLC | 15,000 | $66.3K | 0.01% | 00.0% | Unchanged |
| DRW Securities, LLC | 14,964 | $66.1K | 0.00% | +2,614+21.2% | Added |
| Mercer Global Advisors Inc | 14,779 | $65.3K | 0.00% | −10,771−42.2% | Reduced |
| FMR LLC | 14,358 | $63.5K | 0.00% | +1,648+13.0% | Added |
| Victory Capital Management Inc | 12,806 | $56.6K | 0.00% | +1,572+14.0% | Added |
| Allworth Financial LP | 12,445 | $55.0K | 0.00% | +12,395+24,790.0% | Added |
| Captrust Financial Advisors | 12,314 | $54.4K | 0.00% | +12,314 | New |
| Chicago Capital, LLC | 12,000 | $53.0K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 11,921 | $52.7K | 0.00% | +11,921 | New |
| Verition Fund Management LLC | 11,678 | $51.6K | 0.00% | −176,050−93.8% | Reduced |
| Pictet Asset Management Holding SA | 11,334 | $50.1K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 10,670 | $47.2K | 0.00% | −34,229−76.2% | Reduced |
| Calton & Associates, Inc. | 10,500 | $46.4K | 0.01% | +10,500 | New |
| Wealthfront Advisers LLC | 10,149 | $44.9K | 0.00% | +10,149 | New |
| Stephens Inc | 10,000 | $44.2K | 0.00% | +10,000 | New |
| Broadhurst Jeffrey B | 10,000 | $44.2K | 0.05% | +10,000 | New |
| Ameritas Investment Partners, Inc. | 9,303 | $41.1K | 0.00% | +2,840+43.9% | Added |
| Steward Partners Investment Advisory, LLC | 9,165 | $40.5K | 0.00% | −4,600−33.4% | Reduced |
| Leonteq Securities AG | 9,000 | $39.8K | 0.00% | −19,515−68.4% | Reduced |
| Nisa Investment Advisors, LLC | 7,686 | $34.0K | 0.00% | +6,648+640.5% | Added |
| Close Asset Management Ltd | 7,500 | $33.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 6,552 | $29.0K | 0.00% | +6,552 | New |
| Federation des caisses Desjardins du Quebec | 6,180 | $27.3K | 0.00% | +4,000+183.5% | Added |
| Smartleaf Asset Management LLC | 6,000 | $25.3K | 0.00% | +6,000 | New |
| Rockefeller Capital Management L.P. | 5,020 | $22.2K | 0.00% | +899+21.8% | Added |
| Evelyn Partners Investment Management LLP | 5,000 | $22.1K | 0.00% | 00.0% | Unchanged |
| Bank of New Hampshire | 3,000 | $13.3K | 0.00% | +1,000+50.0% | Added |
| Jones Financial Companies LLLP | 2,852 | $12.5K | 0.00% | −2,031−41.6% | Reduced |
| Innovative Asset Advisors Group, LLC | 2,200 | $9.72K | 0.01% | +2,200 | New |
| Hanson & Doremus Investment Management | 2,000 | $9.00K | 0.00% | +1,000+100.0% | Added |
| Parallel Advisors, LLC | 1,873 | $8.28K | 0.00% | +337+21.9% | Added |
| Rothschild Investment LLC | 1,695 | $7.49K | 0.00% | +1,689+28,150.0% | Added |
| CWM, LLC | 1,694 | $7.49K | 0.00% | +773+83.9% | Added |
| Larson Financial Group LLC | 1,242 | $5.49K | 0.00% | +1,079+662.0% | Added |
| Signaturefd, LLC | 1,000 | $4.42K | 0.00% | −124−11.0% | Reduced |
| Adirondack Trust Co | 986 | $4.36K | 0.00% | +986 | New |
| Sterling Capital Management LLC | 738 | $3.26K | 0.00% | +162+28.1% | Added |
| Copia Wealth Management | 730 | $3.23K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 710 | $3.14K | 0.00% | +301+73.6% | Added |
| Bryn Mawr Trust Co | 629 | $2.78K | 0.00% | +629 | New |
| GAMMA Investing LLC | 546 | $2.41K | 0.00% | +290+113.3% | Added |
| The PNC Financial Services Group, Inc. | 540 | $2.39K | 0.00% | +447+480.6% | Added |
| Golden State Equity Partners | 436 | $1.93K | 0.00% | +436 | New |
| US Bancorp | 60 | $265 | 0.00% | +60 | New |
| Islay Capital Management, LLC | 39 | $172 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 28 | $124 | 0.00% | +28 | New |
| Root Financial Partners, LLC | 26 | $115 | 0.00% | +26 | New |
| EverSource Wealth Advisors, LLC | 11 | $49 | 0.00% | +11 | New |
| Massmutual Trust Co FSB | 10 | $44 | 0.00% | −7−41.2% | Reduced |
| Telemark Asset Management, LLC | 0 | $0 | 0.00% | −825,000−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −818,129−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −414,875−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −356,237−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −329,488−100.0% | Sold out |
| VARCOV Co. | 0 | $0 | 0.00% | −188,649−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −88,177−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −87,260−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −66,998−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −54,037−100.0% | Sold out |
| Resolute Capital Asset Partners LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −44,661−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −38,092−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −30,737−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −29,566−100.0% | Sold out |
| Integrated Wealth Concepts LLC | 0 | $0 | 0.00% | −18,508−100.0% | Sold out |
| J.W. Cole Advisors, Inc. | 0 | $0 | 0.00% | −16,663−100.0% | Sold out |
| Atomi Financial Group, Inc. | 0 | $0 | 0.00% | −15,334−100.0% | Sold out |
| Corsair Capital Management, L.P. | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| MML Investors Services, LLC | 0 | $0 | 0.00% | −14,586−100.0% | Sold out |
| Inscription Capital, LLC | 0 | $0 | 0.00% | −14,360−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −14,275−100.0% | Sold out |