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
- 64.2M
- +11.8M (+22.4%) vs. Q4 2025
- Total value
- $284.2M
- +$3.53M (+1.3%) 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 | $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, 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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 8,328,144 | $36.8M | 0.00% | +1,538,727+22.7% | Added |
| Encompass Capital Advisors LLC | 6,912,054 | $30.6M | 1.25% | +6,912,054 | New |
| Vanguard Capital Management LLC | 5,060,464 | $22.4M | 0.00% | +5,060,464 | New |
| Rovida Investment Management Ltd | 4,100,000 | $18.1M | 2.27% | 00.0% | Unchanged |
| UBS Group AG | 2,841,709 | $12.6M | 0.00% | +435,252+18.1% | Added |
| Geode Capital Management, LLC | 2,740,464 | $12.1M | 0.00% | +356,398+14.9% | Added |
| Alyeska Investment Group, L.P. | 2,692,166 | $11.9M | 0.03% | −2,203,380−45.0% | Reduced |
| State Street Corp | 2,322,159 | $10.3M | 0.00% | +477,754+25.9% | Added |
| Exchange Traded Concepts, LLC | 2,183,554 | $9.65M | 0.07% | +783,240+55.9% | Added |
| AWM Investment Company, Inc. | 2,124,496 | $9.39M | 1.04% | 00.0% | Unchanged |
| Morgan Stanley | 1,576,413 | $6.97M | 0.00% | −133,370−7.8% | Reduced |
| Susquehanna International Group, LLP | 1,057,340 | $4.67M | 0.01% | −459,303−30.3% | Reduced |
| Barclays PLC | 1,012,956 | $4.48M | 0.00% | +506,168+99.9% | Added |
| Vanguard Portfolio Management LLC | 977,170 | $4.32M | 0.00% | +977,170 | New |
| Diametric Capital, LP | 953,505 | $4.21M | 1.10% | +216,201+29.3% | Added |
| Northern Trust Corp | 937,523 | $4.14M | 0.00% | +191,614+25.7% | Added |
| Charles Schwab Investment Management Inc | 897,236 | $3.97M | 0.00% | +11,497+1.3% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 887,245 | $3.92M | 0.00% | −57,081−6.0% | Reduced |
| Rathbone Brothers plc | 773,132 | $3.42M | 0.01% | −26,066−3.3% | Reduced |
| Citadel Advisors LLC | 768,006 | $3.39M | 0.00% | −957,547−55.5% | Reduced |
| Vanguard Fiduciary Trust Co | 753,316 | $3.33M | 0.00% | +753,316 | New |
| Jane Street Group, LLC | 684,479 | $3.03M | 0.00% | −902,482−56.9% | Reduced |
| Philadelphia Financial Management of San Francisco, LLC | 648,341 | $2.87M | 0.92% | +648,341 | New |
| Wim Investment Management Ltd | 601,400 | $2.66M | 0.79% | 00.0% | Unchanged |
| Group One Trading, L.P. | 595,625 | $2.63M | 0.09% | +151,280+34.0% | Added |
| Sara-Bay Financial | 586,673 | $2.59M | 0.78% | +586,673 | New |
| Goldman Sachs Group Inc | 526,795 | $2.33M | 0.00% | −1,188,497−69.3% | Reduced |
| Pacer Advisors, Inc. | 503,925 | $2.23M | 0.01% | +99,553+24.6% | Added |
| Chicago Partners Investment Group LLC | 374,078 | $2.10M | 0.05% | +374,078 | New |
| Shay Capital LLC | 429,500 | $1.90M | 0.27% | −149,500−25.8% | Reduced |
| Saba Capital Management, L.P. | 357,625 | $1.58M | 0.05% | +1,248+0.4% | Added |
| HITE Hedge Asset Management LLC | 326,227 | $1.44M | 0.08% | −123,656−27.5% | Reduced |
| CAPROCK Group, Inc. | 321,000 | $1.42M | 0.03% | −1,314−0.4% | Reduced |
| Alight Capital Management LP | 300,000 | $1.33M | 0.39% | +300,000 | New |
| Yaupon Capital Management LP | 300,000 | $1.33M | 0.07% | +300,000 | New |
| Bank of New York Mellon Corp | 289,009 | $1.28M | 0.00% | +45,022+18.5% | Added |
| IMC-Chicago, LLC | 268,469 | $1.19M | 0.02% | −26,033−8.8% | Reduced |
| JPMorgan Chase & Co | 273,462 | $1.15M | 0.00% | +78,983+40.6% | Added |
| Burkehill Global Management, LP | 250,000 | $1.10M | 0.05% | 00.0% | Unchanged |
| Bank of Montreal | 231,773 | $1.02M | 0.00% | +113,887+96.6% | Added |
| Purewater Capital LLC | 211,851 | $936.4K | 0.90% | +211,851 | New |
| Swiss National Bank | 210,100 | $928.6K | 0.00% | 00.0% | Unchanged |
| Nuveen, LLC | 207,442 | $916.9K | 0.00% | +24,717+13.5% | Added |
| Arosa Capital Management LP | 200,000 | $884.0K | 0.58% | 00.0% | Unchanged |
| Empowered Funds, LLC | 185,953 | $821.9K | 0.01% | +51,351+38.2% | Added |
| Bank of America Corp | 168,997 | $747.0K | 0.00% | −61,859−26.8% | Reduced |
| SBI Securities Co., Ltd. | 164,639 | $727.7K | 0.02% | +12,519+8.2% | Added |
| Tudor Investment Corp Et Al | 161,030 | $711.8K | 0.00% | +28,094+21.1% | Added |
| Prelude Capital Management, LLC | 153,650 | $679.1K | 0.05% | −74,837−32.8% | Reduced |
| PFG Investments, LLC | 152,300 | $673.2K | 0.03% | −29,500−16.2% | Reduced |
| SEI Investments Co | 148,648 | $657.0K | 0.00% | +71,644+93.0% | Added |
| Massar Capital Management, LP | 147,376 | $651.4K | 0.13% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 145,627 | $643.7K | 0.00% | +164+0.1% | Added |
| Farther Finance Advisors, LLC | 150,216 | $617.4K | 0.01% | +25,653+20.6% | Added |
| Polen Capital Management LLC | 122,970 | $543.5K | 0.00% | −16,541−11.9% | Reduced |
| Stifel Financial Corp | 120,525 | $532.7K | 0.00% | +10,673+9.7% | Added |
| Rhumbline Advisers | 117,678 | $520.1K | 0.00% | +16,141+15.9% | Added |
| Cetera Investment Advisers | 114,817 | $507.5K | 0.00% | +43,510+61.0% | Added |
| UBS Asset Management Americas Inc | 112,476 | $497.1K | 0.00% | +10,100+9.9% | Added |
| Belpointe Asset Management LLC | 101,562 | $448.9K | 0.02% | +101,562 | New |
| Canal Insurance CO | 100,000 | $442.0K | 0.09% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 97,985 | $433.0K | 0.00% | +97,985 | New |
| Deutsche Bank AG | 93,658 | $414.0K | 0.00% | +25,038+36.5% | Added |
| Marex Group plc | 91,700 | $405.3K | 0.00% | +6,499+7.6% | Added |
| Pekin Hardy Strauss, Inc. | 88,450 | $390.9K | 0.04% | +61,750+231.3% | Added |
| FNY Investment Advisers, LLC | 86,600 | $382.0K | 0.17% | +1,500+1.8% | Added |
| National Bank of Canada | 86,120 | $379.8K | 0.00% | +23,723+38.0% | Added |
| Price T Rowe Associates Inc | 80,641 | $357.0K | 0.00% | +31,597+64.4% | Added |
| PEAK6 LLC | 79,212 | $350.1K | 0.01% | +60,652+326.8% | Added |
| Penn Capital Management Co Inc | 78,822 | $348.4K | 0.03% | −48,094−37.9% | Reduced |
| California State Teachers Retirement System | 78,212 | $345.7K | 0.00% | +1,004+1.3% | Added |
| Balyasny Asset Management LLC | 76,521 | $338.2K | 0.00% | −4,006−5.0% | Reduced |
| Headlands Technologies LLC | 75,166 | $332.2K | 0.04% | +75,166 | New |
| Citigroup Inc | 75,162 | $332.2K | 0.00% | −190−0.3% | Reduced |
| Vanguard Asset Management, Ltd | 74,308 | $328.4K | 0.00% | +74,308 | New |
| Squarepoint Ops LLC | 70,597 | $312.0K | 0.00% | +43,116+156.9% | Added |
| MetLife Investment Management | 63,587 | $281.1K | 0.00% | +10,954+20.8% | Added |
| Simplex Trading, LLC | 61,648 | $272.5K | 0.01% | −32,068−34.2% | Reduced |
| DnB Asset Management AS | 59,782 | $264.2K | 0.00% | +59,782 | New |
| Invesco Ltd. | 56,634 | $250.3K | 0.00% | −2,919−4.9% | Reduced |
| Legal & General Group Plc | 55,426 | $245.0K | 0.00% | −21,085−27.6% | Reduced |
| Advisor Group Holdings, Inc. | 53,972 | $238.6K | 0.00% | +3,286+6.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 53,332 | $235.7K | 0.00% | +10,392+24.2% | Added |
| Virtu Financial LLC | 50,461 | $223.0K | 0.01% | +50,461 | New |
| MH & Associates Securities Management Corp | 50,096 | $221.4K | 0.19% | +1,430+2.9% | Added |
| Wells Fargo & Company | 49,733 | $219.8K | 0.00% | −81,938−62.2% | Reduced |
| Alliancebernstein L.P. | 38,760 | $207.4K | 0.00% | +38,760 | New |
| Patriot Financial Group Insurance Agency, LLC | 44,980 | $198.8K | 0.01% | +23,155+106.1% | Added |
| LPL Financial LLC | 44,169 | $195.2K | 0.00% | −3,431−7.2% | Reduced |
| Vanguard Global Advisers, LLC | 43,019 | $190.1K | 0.00% | +43,019 | New |
| Creative Planning | 41,580 | $183.8K | 0.00% | +31,151+298.7% | Added |
| Allegheny Financial Group LTD | 40,649 | $179.7K | 0.02% | +6,176+17.9% | Added |
| Advisory Services Network, LLC | 40,248 | $177.9K | 0.00% | +5,876+17.1% | Added |
| Scientech Research LLC | 40,230 | $177.8K | 0.15% | +21,455+114.3% | Added |
| Janus Henderson Group PLC | 39,000 | $172.2K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 37,954 | $167.0K | 0.00% | +5,906+18.4% | Added |
| Centiva Capital, LP | 36,544 | $161.5K | 0.01% | +9,358+34.4% | Added |
| Police & Firemen's Retirement System of New Jersey | 33,888 | $149.8K | 0.00% | +13,128+63.2% | Added |
| Quantinno Capital Management LP | 33,067 | $146.2K | 0.00% | −23,709−41.8% | Reduced |
| KLP Kapitalforvaltning AS | 31,600 | $139.7K | 0.00% | +14,900+89.2% | Added |