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
- 59.0M
- +5.69M (+10.7%) vs. Q3 2025
- Total value
- $315.4M
- −$196.9M (−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 | $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, 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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6,789,417 | $36.3M | 0.00% | +1,328,425+24.3% | Added |
| Vanguard Group Inc | 6,406,244 | $34.3M | 0.00% | +1,889,481+41.8% | Added |
| Alyeska Investment Group, L.P. | 4,895,546 | $26.2M | 0.07% | +2,072,851+73.4% | Added |
| Rovida Investment Management Ltd | 4,100,000 | $21.9M | 2.98% | +900,000+28.1% | Added |
| UBS Group AG | 2,406,457 | $12.9M | 0.00% | +1,445,165+150.3% | Added |
| Geode Capital Management, LLC | 2,384,066 | $12.8M | 0.00% | +521,611+28.0% | Added |
| AWM Investment Company, Inc. | 2,124,496 | $11.4M | 1.10% | −834,100−28.2% | Reduced |
| State Street Corp | 1,844,405 | $9.87M | 0.00% | +438,673+31.2% | Added |
| Citadel Advisors LLC | 1,725,553 | $9.23M | 0.01% | +559,788+48.0% | Added |
| Goldman Sachs Group Inc | 1,715,292 | $9.18M | 0.00% | +1,306,540+319.6% | Added |
| Morgan Stanley | 1,709,783 | $9.15M | 0.00% | +1,270,030+288.8% | Added |
| Jane Street Group, LLC | 1,586,961 | $8.49M | 0.01% | +368,244+30.2% | Added |
| Susquehanna International Group, LLP | 1,516,643 | $8.11M | 0.01% | +174,860+13.0% | Added |
| Exchange Traded Concepts, LLC | 1,400,314 | $7.49M | 0.06% | +194,034+16.1% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 944,326 | $5.05M | 0.01% | +280,387+42.2% | Added |
| Charles Schwab Investment Management Inc | 885,739 | $4.74M | 0.00% | +223,778+33.8% | Added |
| Telemark Asset Management, LLC | 825,000 | $4.41M | 0.44% | −500,000−37.7% | Reduced |
| Marshall Wace, LLP | 818,129 | $4.38M | 0.00% | −460,992−36.0% | Reduced |
| Rathbone Brothers plc | 799,198 | $4.28M | 0.01% | +562,134+237.1% | Added |
| Northern Trust Corp | 745,909 | $3.99M | 0.00% | +145,860+24.3% | Added |
| Diametric Capital, LP | 737,304 | $3.94M | 1.06% | +381,624+107.3% | Added |
| Wim Investment Management Ltd | 601,400 | $3.22M | 0.83% | +601,400 | New |
| Shay Capital LLC | 579,000 | $3.10M | 0.50% | +431,000+291.2% | Added |
| Barclays PLC | 506,788 | $2.71M | 0.00% | +274,424+118.1% | Added |
| HITE Hedge Asset Management LLC | 449,883 | $2.41M | 0.15% | +449,883 | New |
| Group One Trading, L.P. | 444,345 | $2.38M | 0.07% | −183,898−29.3% | Reduced |
| Schonfeld Strategic Advisors LLC | 414,875 | $2.22M | 0.01% | +215,028+107.6% | Added |
| Pacer Advisors, Inc. | 404,372 | $2.16M | 0.01% | +404,372 | New |
| Quantbot Technologies LP | 396,599 | $2.12M | 0.07% | +393,039+11,040.4% | Added |
| Saba Capital Management, L.P. | 356,377 | $1.91M | 0.06% | +356,377 | New |
| Two Sigma Investments, LP | 356,237 | $1.91M | 0.00% | +18,992+5.6% | Added |
| Gsa Capital Partners LLP | 329,488 | $1.76M | 0.15% | +9,252+2.9% | Added |
| CAPROCK Group, Inc. | 322,314 | $1.72M | 0.04% | +26,314+8.9% | Added |
| IMC-Chicago, LLC | 294,502 | $1.58M | 0.03% | +261,274+786.3% | Added |
| Burkehill Global Management, LP | 250,000 | $1.34M | 0.09% | +250,000 | New |
| Bank of New York Mellon Corp | 243,987 | $1.31M | 0.00% | +32,383+15.3% | Added |
| Bank of America Corp | 230,856 | $1.24M | 0.00% | +102,573+80.0% | Added |
| Prelude Capital Management, LLC | 228,487 | $1.22M | 0.09% | +130,091+132.2% | Added |
| Swiss National Bank | 210,100 | $1.12M | 0.00% | +210,100 | New |
| Arosa Capital Management LP | 200,000 | $1.07M | 0.69% | +200,000 | New |
| JPMorgan Chase & Co | 194,479 | $1.04M | 0.00% | −554,953−74.0% | Reduced |
| VARCOV Co. | 188,649 | $1.01M | 0.40% | +188,649 | New |
| Verition Fund Management LLC | 187,728 | $1.00M | 0.01% | −176,037−48.4% | Reduced |
| Nuveen, LLC | 182,725 | $977.6K | 0.00% | +15,350+9.2% | Added |
| PFG Investments, LLC | 181,800 | $972.6K | 0.05% | +158,000+663.9% | Added |
| SBI Securities Co., Ltd. | 152,120 | $813.8K | 0.02% | +100,769+196.2% | Added |
| Massar Capital Management, LP | 147,376 | $788.5K | 0.16% | +147,376 | New |
| Russell Investments Group, Ltd. | 145,463 | $778.2K | 0.00% | +18,885+14.9% | Added |
| Polen Capital Management LLC | 139,511 | $746.4K | 0.00% | −93,402−40.1% | Reduced |
| Empowered Funds, LLC | 134,602 | $720.1K | 0.01% | +134,602 | New |
| Tudor Investment Corp Et Al | 132,936 | $711.2K | 0.00% | −327,749−71.1% | Reduced |
| Wells Fargo & Company | 131,671 | $704.4K | 0.00% | +84,605+179.8% | Added |
| Penn Capital Management Co Inc | 126,916 | $679.0K | 0.05% | −75,228−37.2% | Reduced |
| Farther Finance Advisors, LLC | 124,563 | $666.4K | 0.01% | +13,387+12.0% | Added |
| Bank of Montreal | 117,886 | $630.7K | 0.00% | +13,514+12.9% | Added |
| Stifel Financial Corp | 109,852 | $587.7K | 0.00% | −8,100−6.9% | Reduced |
| UBS Asset Management Americas Inc | 102,376 | $547.7K | 0.00% | +102,376 | New |
| Rhumbline Advisers | 101,537 | $543.2K | 0.00% | −750−0.7% | Reduced |
| Canal Insurance CO | 100,000 | $535.0K | 0.13% | +70,000+233.3% | Added |
| Simplex Trading, LLC | 93,716 | $501.4K | 0.01% | +80,319+599.5% | Added |
| Quest Partners LLC | 88,177 | $471.7K | 0.03% | +59,905+211.9% | Added |
| Jefferies Financial Group Inc. | 87,260 | $466.8K | 0.00% | +47,734+120.8% | Added |
| Marex Group plc | 85,201 | $455.8K | 0.00% | +16,701+24.4% | Added |
| FNY Investment Advisers, LLC | 85,100 | $455.0K | 0.13% | +72,600+580.8% | Added |
| Southport Management, L.L.C. | 85,000 | $454.8K | 1.59% | +55,000+183.3% | Added |
| Balyasny Asset Management LLC | 80,527 | $430.8K | 0.00% | +37,639+87.8% | Added |
| Moore Capital Management, LP | 80,000 | $428.0K | 0.01% | −120,000−60.0% | Reduced |
| California State Teachers Retirement System | 77,208 | $413.1K | 0.00% | +73,441+1,949.6% | Added |
| SEI Investments Co | 77,004 | $412.0K | 0.00% | +77,004 | New |
| Legal & General Group Plc | 76,511 | $409.3K | 0.00% | +68,134+813.3% | Added |
| Citigroup Inc | 75,352 | $403.1K | 0.00% | +60,599+410.8% | Added |
| Brevan Howard Capital Management LP | 72,000 | $385.6K | 0.01% | +10,880+17.8% | Added |
| Cetera Investment Advisers | 71,307 | $381.5K | 0.00% | +58,434+453.9% | Added |
| Deutsche Bank AG | 68,620 | $367.1K | 0.00% | +25,919+60.7% | Added |
| Graham Capital Management, L.P. | 66,998 | $358.4K | 0.01% | +66,998 | New |
| National Bank of Canada | 62,397 | $333.2K | 0.00% | +32,247+107.0% | Added |
| Invesco Ltd. | 59,553 | $318.6K | 0.00% | −83,754−58.4% | Reduced |
| Quantinno Capital Management LP | 56,776 | $303.8K | 0.00% | +56,776 | New |
| D. E. Shaw & Co., Inc. | 54,037 | $289.1K | 0.00% | +54,037 | New |
| MetLife Investment Management | 52,633 | $281.6K | 0.00% | +6,916+15.1% | Added |
| Advisor Group Holdings, Inc. | 50,686 | $271.2K | 0.00% | +13,735+37.2% | Added |
| Resolute Capital Asset Partners LLC | 50,000 | $267.5K | 0.13% | +50,000 | New |
| Price T Rowe Associates Inc | 49,044 | $263.0K | 0.00% | −998,714−95.3% | Reduced |
| MH & Associates Securities Management Corp | 48,666 | $260.4K | 0.21% | +48,666 | New |
| LPL Financial LLC | 47,600 | $254.7K | 0.00% | +34,433+261.5% | Added |
| Commonwealth Equity Services, LLC | 44,899 | $240.2K | 0.00% | −20,535−31.4% | Reduced |
| Atom Investors LP | 44,661 | $238.9K | 0.02% | +44,661 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 42,940 | $229.7K | 0.00% | +7,342+20.6% | Added |
| Janus Henderson Group PLC | 39,000 | $208.5K | 0.00% | +39,000 | New |
| Axq Capital, LP | 38,092 | $203.8K | 0.05% | +38,092 | New |
| Caitong International Asset Management Co., Ltd | 34,983 | $187.2K | 0.05% | +22,361+177.2% | Added |
| Allegheny Financial Group LTD | 34,473 | $184.4K | 0.03% | +975+2.9% | Added |
| Advisory Services Network, LLC | 34,372 | $183.9K | 0.00% | +3,134+10.0% | Added |
| Royal Bank of Canada | 32,048 | $172.0K | 0.00% | −75,671−70.2% | Reduced |
| Dark Forest Capital Management LP | 30,737 | $164.4K | 0.01% | +30,737 | New |
| Raymond James Financial Inc | 29,566 | $158.2K | 0.00% | +29,566 | New |
| Intech Investment Management LLC | 29,516 | $157.9K | 0.00% | −4,846−14.1% | Reduced |
| AQR Capital Management LLC | 29,356 | $157.1K | 0.00% | −298,666−91.1% | Reduced |
| Leonteq Securities AG | 28,515 | $152.6K | 0.01% | +20,515+256.4% | Added |
| Manufacturers Life Insurance Company, The | 28,033 | $150.0K | 0.00% | +3,036+12.1% | Added |