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 |
|---|---|---|---|---|---|
| MetLife Investment Management | 63,587 | $281.1K | 0.00% | +10,954+20.8% | Added |
| Squarepoint Ops LLC | 70,597 | $312.0K | 0.00% | +43,116+156.9% | Added |
| Vanguard Asset Management, Ltd | 74,308 | $328.4K | 0.00% | +74,308 | New |
| Citigroup Inc | 75,162 | $332.2K | 0.00% | −190−0.3% | Reduced |
| Headlands Technologies LLC | 75,166 | $332.2K | 0.04% | +75,166 | New |
| Balyasny Asset Management LLC | 76,521 | $338.2K | 0.00% | −4,006−5.0% | Reduced |
| California State Teachers Retirement System | 78,212 | $345.7K | 0.00% | +1,004+1.3% | Added |
| Penn Capital Management Co Inc | 78,822 | $348.4K | 0.03% | −48,094−37.9% | Reduced |
| PEAK6 LLC | 79,212 | $350.1K | 0.01% | +69,932+753.6% | Added |
| Price T Rowe Associates Inc | 80,641 | $357.0K | 0.00% | +31,597+64.4% | Added |
| National Bank of Canada | 86,120 | $379.8K | 0.00% | +23,723+38.0% | Added |
| FNY Investment Advisers, LLC | 86,600 | $382.0K | 0.17% | +1,500+1.8% | Added |
| Pekin Hardy Strauss, Inc. | 88,450 | $390.9K | 0.04% | +61,750+231.3% | Added |
| Marex Group plc | 91,700 | $405.3K | 0.00% | +6,499+7.6% | Added |
| Deutsche Bank AG | 93,658 | $414.0K | 0.00% | +25,038+36.5% | Added |
| SG Americas Securities, LLC | 97,985 | $433.0K | 0.00% | +97,985 | New |
| Canal Insurance CO | 100,000 | $442.0K | 0.09% | 00.0% | Unchanged |
| Belpointe Asset Management LLC | 101,562 | $448.9K | 0.02% | +101,562 | New |
| UBS Asset Management Americas Inc | 112,476 | $497.1K | 0.00% | +10,100+9.9% | Added |
| Cetera Investment Advisers | 114,817 | $507.5K | 0.00% | +43,510+61.0% | Added |
| Rhumbline Advisers | 117,678 | $520.1K | 0.00% | +16,141+15.9% | Added |
| Stifel Financial Corp | 120,525 | $532.7K | 0.00% | +10,673+9.7% | Added |
| Polen Capital Management LLC | 122,970 | $543.5K | 0.00% | −16,541−11.9% | Reduced |
| Farther Finance Advisors, LLC | 150,216 | $617.4K | 0.01% | +25,653+20.6% | Added |
| Russell Investments Group, Ltd. | 145,627 | $643.7K | 0.00% | +164+0.1% | Added |
| Massar Capital Management, LP | 147,376 | $651.4K | 0.13% | 00.0% | Unchanged |
| SEI Investments Co | 148,648 | $657.0K | 0.00% | +71,644+93.0% | Added |
| PFG Investments, LLC | 152,300 | $673.2K | 0.03% | −29,500−16.2% | Reduced |
| Prelude Capital Management, LLC | 153,650 | $679.1K | 0.05% | −74,837−32.8% | Reduced |
| Tudor Investment Corp Et Al | 161,030 | $711.8K | 0.00% | +28,094+21.1% | Added |
| SBI Securities Co., Ltd. | 164,639 | $727.7K | 0.02% | +12,519+8.2% | Added |
| Bank of America Corp | 168,997 | $747.0K | 0.00% | −61,859−26.8% | Reduced |
| Empowered Funds, LLC | 185,953 | $821.9K | 0.01% | +51,351+38.2% | Added |
| Arosa Capital Management LP | 200,000 | $884.0K | 0.58% | 00.0% | Unchanged |
| Nuveen, LLC | 207,442 | $916.9K | 0.00% | +24,717+13.5% | Added |
| Swiss National Bank | 210,100 | $928.6K | 0.00% | 00.0% | Unchanged |
| Purewater Capital LLC | 211,851 | $936.4K | 0.90% | +211,851 | New |
| Bank of Montreal | 231,773 | $1.02M | 0.00% | +113,887+96.6% | Added |
| Burkehill Global Management, LP | 250,000 | $1.10M | 0.05% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 273,462 | $1.15M | 0.00% | +78,983+40.6% | Added |
| IMC-Chicago, LLC | 268,469 | $1.19M | 0.02% | −26,033−8.8% | Reduced |
| Bank of New York Mellon Corp | 289,009 | $1.28M | 0.00% | +45,022+18.5% | Added |
| 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 |
| CAPROCK Group, Inc. | 321,000 | $1.42M | 0.03% | −1,314−0.4% | Reduced |
| HITE Hedge Asset Management LLC | 326,227 | $1.44M | 0.08% | −123,656−27.5% | Reduced |
| Saba Capital Management, L.P. | 357,625 | $1.58M | 0.05% | +1,248+0.4% | Added |
| Rathbone Brothers plc | 386,566 | $1.71M | 0.01% | −13,033−3.3% | Reduced |
| Shay Capital LLC | 429,500 | $1.90M | 0.27% | −149,500−25.8% | Reduced |
| Chicago Partners Investment Group LLC | 374,078 | $2.10M | 0.05% | +374,078 | New |
| Pacer Advisors, Inc. | 503,925 | $2.23M | 0.01% | +99,553+24.6% | Added |
| Goldman Sachs Group Inc | 526,795 | $2.33M | 0.00% | −1,188,497−69.3% | Reduced |
| Sara-Bay Financial | 586,673 | $2.59M | 0.80% | +586,673 | New |
| Group One Trading, L.P. | 595,625 | $2.63M | 0.09% | +151,280+34.0% | Added |
| Wim Investment Management Ltd | 601,400 | $2.66M | 0.79% | 00.0% | Unchanged |
| Philadelphia Financial Management of San Francisco, LLC | 648,341 | $2.87M | 0.92% | +648,341 | New |
| Jane Street Group, LLC | 684,479 | $3.03M | 0.00% | −902,482−56.9% | Reduced |
| Vanguard Fiduciary Trust Co | 753,316 | $3.33M | 0.00% | +753,316 | New |
| Citadel Advisors LLC | 768,006 | $3.39M | 0.00% | −957,547−55.5% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 887,245 | $3.92M | 0.00% | −57,081−6.0% | Reduced |
| Charles Schwab Investment Management Inc | 897,236 | $3.97M | 0.00% | +11,497+1.3% | Added |
| Northern Trust Corp | 937,523 | $4.14M | 0.00% | +191,614+25.7% | Added |
| Diametric Capital, LP | 953,505 | $4.21M | 1.10% | +216,201+29.3% | Added |
| Vanguard Portfolio Management LLC | 977,170 | $4.32M | 0.00% | +977,170 | New |
| Barclays PLC | 1,012,956 | $4.48M | 0.00% | +506,168+99.9% | Added |
| Susquehanna International Group, LLP | 1,057,340 | $4.67M | 0.01% | −459,303−30.3% | Reduced |
| Morgan Stanley | 1,576,413 | $6.97M | 0.00% | −133,370−7.8% | Reduced |
| AWM Investment Company, Inc. | 2,124,496 | $9.39M | 1.04% | 00.0% | Unchanged |
| Exchange Traded Concepts, LLC | 2,183,554 | $9.65M | 0.07% | +783,240+55.9% | Added |
| State Street Corp | 2,322,159 | $10.3M | 0.00% | +477,754+25.9% | Added |
| Alyeska Investment Group, L.P. | 2,692,166 | $11.9M | 0.03% | −2,203,380−45.0% | Reduced |
| Geode Capital Management, LLC | 2,740,464 | $12.1M | 0.00% | +356,398+14.9% | Added |
| UBS Group AG | 2,841,709 | $12.6M | 0.00% | +435,252+18.1% | Added |
| Rovida Investment Management Ltd | 4,100,000 | $18.1M | 2.27% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 5,060,464 | $22.4M | 0.00% | +5,060,464 | New |
| Encompass Capital Advisors LLC | 6,912,054 | $30.6M | 1.25% | +6,912,054 | New |
| BlackRock, Inc. | 8,328,144 | $36.8M | 0.00% | +1,538,727+22.7% | Added |
| 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 |