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 |
|---|---|---|---|---|---|
| Massmutual Trust Co FSB | 10 | $44 | 0.00% | −7−41.2% | Reduced |
| EverSource Wealth Advisors, LLC | 11 | $49 | 0.00% | +11 | New |
| Root Financial Partners, LLC | 26 | $115 | 0.00% | +26 | New |
| MAI Capital Management | 28 | $124 | 0.00% | +28 | New |
| Islay Capital Management, LLC | 39 | $172 | 0.00% | 00.0% | Unchanged |
| US Bancorp | 60 | $265 | 0.00% | +60 | New |
| Golden State Equity Partners | 436 | $1.93K | 0.00% | +436 | New |
| The PNC Financial Services Group, Inc. | 540 | $2.39K | 0.00% | +447+480.6% | Added |
| GAMMA Investing LLC | 546 | $2.41K | 0.00% | +290+113.3% | Added |
| Bryn Mawr Trust Co | 629 | $2.78K | 0.00% | +629 | New |
| Optiver Holding B.V. | 710 | $3.14K | 0.00% | +301+73.6% | Added |
| Copia Wealth Management | 730 | $3.23K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 738 | $3.26K | 0.00% | +162+28.1% | Added |
| Adirondack Trust Co | 986 | $4.36K | 0.00% | +986 | New |
| Signaturefd, LLC | 1,000 | $4.42K | 0.00% | −124−11.0% | Reduced |
| Larson Financial Group LLC | 1,242 | $5.49K | 0.00% | +1,079+662.0% | Added |
| CWM, LLC | 1,694 | $7.49K | 0.00% | +773+83.9% | Added |
| Rothschild Investment LLC | 1,695 | $7.49K | 0.00% | +1,689+28,150.0% | Added |
| Parallel Advisors, LLC | 1,873 | $8.28K | 0.00% | +337+21.9% | Added |
| Hanson & Doremus Investment Management | 2,000 | $9.00K | 0.00% | +1,000+100.0% | Added |
| Innovative Asset Advisors Group, LLC | 2,200 | $9.72K | 0.01% | +2,200 | New |
| Jones Financial Companies LLLP | 2,852 | $12.5K | 0.00% | −2,031−41.6% | Reduced |
| Bank of New Hampshire | 3,000 | $13.3K | 0.00% | +1,000+50.0% | Added |
| Evelyn Partners Investment Management LLP | 5,000 | $22.1K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 5,020 | $22.2K | 0.00% | +899+21.8% | Added |
| Smartleaf Asset Management LLC | 6,000 | $25.3K | 0.00% | +6,000 | New |
| Federation des caisses Desjardins du Quebec | 6,180 | $27.3K | 0.00% | +4,000+183.5% | Added |
| State of Wyoming | 6,552 | $29.0K | 0.00% | +6,552 | New |
| Close Asset Management Ltd | 7,500 | $33.0K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 7,686 | $34.0K | 0.00% | +6,648+640.5% | Added |
| Leonteq Securities AG | 9,000 | $39.8K | 0.00% | −19,515−68.4% | Reduced |
| Steward Partners Investment Advisory, LLC | 9,165 | $40.5K | 0.00% | −4,600−33.4% | Reduced |
| Ameritas Investment Partners, Inc. | 9,303 | $41.1K | 0.00% | +2,840+43.9% | Added |
| Stephens Inc | 10,000 | $44.2K | 0.00% | +10,000 | New |
| Broadhurst Jeffrey B | 10,000 | $44.2K | 0.05% | +10,000 | New |
| Wealthfront Advisers LLC | 10,149 | $44.9K | 0.00% | +10,149 | New |
| Calton & Associates, Inc. | 10,500 | $46.4K | 0.01% | +10,500 | New |
| Commonwealth Equity Services, LLC | 10,670 | $47.2K | 0.00% | −34,229−76.2% | Reduced |
| Pictet Asset Management Holding SA | 11,334 | $50.1K | 0.00% | 00.0% | Unchanged |
| Verition Fund Management LLC | 11,678 | $51.6K | 0.00% | −176,050−93.8% | Reduced |
| XTX Topco Ltd | 11,921 | $52.7K | 0.00% | +11,921 | New |
| Chicago Capital, LLC | 12,000 | $53.0K | 0.00% | 00.0% | Unchanged |
| Captrust Financial Advisors | 12,314 | $54.4K | 0.00% | +12,314 | New |
| Allworth Financial LP | 12,445 | $55.0K | 0.00% | +12,395+24,790.0% | Added |
| Victory Capital Management Inc | 12,806 | $56.6K | 0.00% | +1,572+14.0% | Added |
| FMR LLC | 14,358 | $63.5K | 0.00% | +1,648+13.0% | Added |
| Mercer Global Advisors Inc | 14,779 | $65.3K | 0.00% | −10,771−42.2% | Reduced |
| DRW Securities, LLC | 14,964 | $66.1K | 0.00% | +2,614+21.2% | Added |
| Perennial Advisors, LLC | 15,000 | $66.3K | 0.01% | 00.0% | Unchanged |
| ProShare Advisors LLC | 16,481 | $72.8K | 0.00% | −423−2.5% | Reduced |
| Tower Research Capital LLC (TRC) | 16,578 | $73.3K | 0.00% | +14,951+918.9% | Added |
| Prudential Financial Inc | 16,840 | $74.4K | 0.00% | +16,840 | New |
| Brevan Howard Capital Management LP | 17,466 | $77.2K | 0.00% | −54,534−75.7% | Reduced |
| Quantbot Technologies LP | 17,810 | $78.7K | 0.00% | −378,789−95.5% | Reduced |
| Brookwood Investment Group LLC | 18,000 | $79.6K | 0.01% | +18,000 | New |
| Fielder Capital Group LLC | 18,083 | $79.9K | 0.02% | +17+0.1% | Added |
| Guggenheim Capital LLC | 18,230 | $80.6K | 0.00% | +4,815+35.9% | Added |
| Skopos Labs, Inc. | 18,868 | $83.4K | 0.00% | +18,868 | New |
| Voya Investment Management LLC | 19,148 | $84.6K | 0.00% | +3,026+18.8% | Added |
| Neuberger Berman Group LLC | 19,972 | $88.3K | 0.00% | −1,455−6.8% | Reduced |
| Tocqueville Asset Management L.P. | 20,000 | $88.4K | 0.00% | +3,000+17.6% | Added |
| Cambridge Investment Research Advisors, Inc. | 21,531 | $95.0K | 0.00% | +21,531 | New |
| Mirabella Financial Services LLP | 22,311 | $98.6K | 0.01% | +22,311 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 23,600 | $104.3K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 23,797 | $105.2K | 0.00% | −5,559−18.9% | Reduced |
| Sanctuary Advisors, LLC | 24,615 | $108.8K | 0.00% | +4,465+22.2% | Added |
| Caitong International Asset Management Co., Ltd | 25,297 | $111.8K | 0.02% | −9,686−27.7% | Reduced |
| Fortitude Advisory Group L.L.C. | 26,035 | $115.1K | 0.05% | +40+0.2% | Added |
| Jump Financial, LLC | 26,276 | $116.1K | 0.00% | +26,276 | New |
| Intech Investment Management LLC | 26,451 | $116.9K | 0.00% | −3,065−10.4% | Reduced |
| Cresset Asset Management, LLC | 27,284 | $120.6K | 0.00% | +2,250+9.0% | Added |
| BNP Paribas Arbitrage, SA | 27,656 | $122.2K | 0.00% | +7,587+37.8% | Added |
| Vanguard Investments Australia, Ltd. | 28,118 | $124.3K | 0.00% | +28,118 | New |
| Fox Run Management, L.L.C. | 30,410 | $128.3K | 0.02% | +30,410 | New |
| New York State Common Retirement Fund | 29,200 | $129.1K | 0.00% | +14,900+104.2% | Added |
| Arizona State Retirement System | 29,210 | $129.1K | 0.00% | +7,534+34.8% | Added |
| Manufacturers Life Insurance Company, The | 30,503 | $134.8K | 0.00% | +2,470+8.8% | Added |
| KLP Kapitalforvaltning AS | 31,600 | $139.7K | 0.00% | +14,900+89.2% | Added |
| Quantinno Capital Management LP | 33,067 | $146.2K | 0.00% | −23,709−41.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 33,888 | $149.8K | 0.00% | +13,128+63.2% | Added |
| Centiva Capital, LP | 36,544 | $161.5K | 0.01% | +9,358+34.4% | Added |
| Royal Bank of Canada | 37,954 | $167.0K | 0.00% | +5,906+18.4% | Added |
| Janus Henderson Group PLC | 39,000 | $172.2K | 0.00% | 00.0% | Unchanged |
| Scientech Research LLC | 40,230 | $177.8K | 0.15% | +21,455+114.3% | Added |
| Advisory Services Network, LLC | 40,248 | $177.9K | 0.00% | +5,876+17.1% | Added |
| Allegheny Financial Group LTD | 40,649 | $179.7K | 0.02% | +6,176+17.9% | Added |
| Creative Planning | 41,580 | $183.8K | 0.00% | +31,151+298.7% | Added |
| Vanguard Global Advisers, LLC | 43,019 | $190.1K | 0.00% | +43,019 | New |
| LPL Financial LLC | 44,169 | $195.2K | 0.00% | −3,431−7.2% | Reduced |
| Patriot Financial Group Insurance Agency, LLC | 44,980 | $198.8K | 0.01% | +23,155+106.1% | Added |
| Alliancebernstein L.P. | 38,760 | $207.4K | 0.00% | +38,760 | New |
| Wells Fargo & Company | 49,733 | $219.8K | 0.00% | −81,938−62.2% | Reduced |
| MH & Associates Securities Management Corp | 50,096 | $221.4K | 0.19% | +1,430+2.9% | Added |
| Virtu Financial LLC | 50,461 | $223.0K | 0.01% | +50,461 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 53,332 | $235.7K | 0.00% | +10,392+24.2% | Added |
| Advisor Group Holdings, Inc. | 53,972 | $238.6K | 0.00% | +3,286+6.5% | Added |
| Legal & General Group Plc | 55,426 | $245.0K | 0.00% | −21,085−27.6% | Reduced |
| Invesco Ltd. | 56,634 | $250.3K | 0.00% | −2,919−4.9% | Reduced |
| DnB Asset Management AS | 59,782 | $264.2K | 0.00% | +59,782 | New |
| Simplex Trading, LLC | 61,648 | $272.5K | 0.01% | −32,068−34.2% | Reduced |