Asp IsotopesASPI
13F holders, Q2 2025 (June 30)130holders +30
44new positions
13sold out
4famous investors
$7.36avg. 13F price*
At the end of Q2 2025, 130 institutions reported holding Asp Isotopes Inc. (ASPI) in their 13F filings, up 30 from Q1 2025. 44 opened new positions and 13 sold out. The largest holders were Alyeska Investment Group, L.P. ($30.8M), BlackRock, Inc. ($29.7M) and AWM Investment Company, Inc. ($28.9M). 4 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Asp Isotopes Inc.
- CUSIP
- 00218A105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 44 | $65.4M |
| Exits | 13 | $2.6M |
All 13F filers, Q1 2025 → Q2 2025: 13,638,763 shares bought and 4,701,516 shares sold, net +8,937,247 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 130 holders
| Alyeska Investment Group, L.P. | 0.11% | New | 4,179,934 | $30.8M |
| BlackRock, Inc. | 0.00% | Reduce -0.6% | 4,028,715 | $29.7M |
| AWM Investment Company, Inc. | 3.25% | Reduce -12.9% | 3,931,186 | $28.9M |
| Vanguard Group Inc. | 0.00% | Add +6.1% | 3,275,739 | $24.1M |
| Capital Research Global Investors | 0.00% | No change | 2,868,062 | $21.1M |
| Philadelphia Financial Management of San Francisco, LLC | 4.36% | Reduce -23.9% | 2,670,211 | $19.7M |
| Rovida Investment Management Ltd | 2.99% | Add +528.6% | 2,200,000 | $16.1M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.04% | Reduce -46.0% | 1,965,484 | $14.5M |
| UBS Group AG | 0.00% | Add +40.6% | 1,428,276 | $10.5M |
| Telemark Asset Management, LLC | 1.11% | Reduce -3.4% | 1,425,000 | $10.5M |
| Driehaus Capital Management LLC | 0.08% | New | 1,405,414 | $10.3M |
| Geode Capital Management, LLC | 0.00% | Add +7.6% | 1,348,072 | $9.9M |
| Exchange Traded Concepts, LLC | 0.12% | New | 1,303,414 | $9.6M |
| State Street Corp. | 0.00% | Add +6.4% | 1,114,200 | $8.2M |
| Group One Trading LLC | 0.17% | Add +162.1% | 706,788 | $5.2M |
| Invesco Ltd. | 0.00% | Add +2205.0% | 471,219 | $3.5M |
| Morgan Stanley | 0.00% | Add +72.0% | 451,329 | $3.3M |
| Northern Trust Corp. | 0.00% | Reduce -6.0% | 433,288 | $3.2M |
| Gsa Capital Partners LLP | 0.20% | Reduce -32.5% | 384,326 | $2.8M |
| Two Sigma Investments, LP | 0.00% | Add +68.9% | 342,912 | $2.5M |
| Tudor Investment Corporation | 0.02% | Add +123.3% | 334,998 | $2.5M |
| Diametric Capital, LP | 1.06% | Reduce -31.4% | 269,527 | $2.0M |
| Simplex Trading, LLC | 0.05% | Add +9215.4% | 240,150 | $1.8M |
| Voloridge Investment Management, LLC | 0.01% | New | 225,249 | $1.7M |
| JPMorgan Chase & Co. | 0.00% | Reduce -4.2% | 219,105 | $1.6M |
| Rathbones Group PLC | 0.01% | Add +1.1% | 208,149 | $1.5M |
| Barclays PLC | 0.00% | Add +108.1% | 175,948 | $1.3M |
| Polen Capital Management LLC | 0.00% | New | 175,138 | $1.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +5.8% | 174,928 | $1.3M |
| Bantamac Capital, LLC | 0.46% | Add +696.1% | 175,138 | $1.3M |
| Creative Planning | 0.00% | New | 172,770 | $1.3M |
| Bank of New York Mellon Corp | 0.00% | Add +7.7% | 153,154 | $1.1M |
| Jane Street Group, LLC | 0.00% | New | 149,434 | $1.1M |
| Citadel Advisors | 0.00% | New | 145,203 | $1.1M |
| Bank of America Corp. | 0.00% | Add +30.4% | 132,556 | $976K |
| Nuveen, LLC | 0.00% | Add +0.6% | 131,997 | $971K |
| OMERS ADMINISTRATION Corp | 0.01% | New | 121,800 | $896K |
| Prelude Capital Management, LLC | 0.08% | Reduce -31.4% | 105,452 | $776K |
| Susquehanna International Group, LLP | 0.00% | Reduce -63.2% | 102,291 | $753K |
| Alliancebernstein L.P. | 0.00% | Add +234.8% | 98,870 | $728K |
| Farther Finance Advisors, LLC | 0.01% | New | 95,999 | $707K |
| Virtu Financial LLC | 0.04% | New | 93,287 | $687K |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 81,700 | $601K |
| Rhumbline Advisers | 0.00% | Add +20.9% | 78,994 | $581K |
| Informed Momentum Co LLC | 0.09% | New | 76,716 | $565K |
| IMC-Chicago, LLC | 0.01% | New | 75,277 | $554K |
| Marex Group Ltd | 0.01% | Reduce -9.1% | 75,000 | $552K |
| Verition Fund Management LLC | 0.00% | New | 70,259 | $517K |
| Scientech Research LLC | 0.12% | New | 69,253 | $510K |
| Destination Wealth Management | 0.01% | No change | 56,964 | $419K |
| Commonwealth Equity Services, LLC | 0.00% | New | 52,998 | $390K |
| MML Investors Services, LLC | 0.00% | New | 47,008 | $346K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | New | 45,000 | $331K |
| Saranac Partners Ltd | 0.17% | No change | 44,195 | $325K |
| Shay Capital LLC | 0.07% | New | 43,500 | $320K |
| Stifel Financial Corp. | 0.00% | New | 38,452 | $283K |
| Deutsche Bank AG | 0.00% | Reduce -7.7% | 36,999 | $272K |
| MetLife Investment Management, LLC | 0.00% | Add +10.0% | 34,897 | $257K |
| AlphaQuest LLC | 0.03% | New | 34,716 | $256K |
| Sanctuary Advisors, LLC | 0.00% | Add +159.9% | 34,266 | $252K |
| Marshall Wace, LLP | 0.00% | Reduce -81.0% | 33,937 | $250K |
| Allegheny Financial Group | 0.06% | New | 33,891 | $249K |
| Millennium Management | 0.00% | Add +76.3% | 32,281 | $238K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +0.2% | 31,678 | $233K |
| Harbour Capital Advisors, LLC | 0.05% | New | 33,025 | $232K |
| Wells Fargo & Company | 0.00% | Add +12.5% | 29,369 | $216K |
| Mariner, LLC | 0.00% | New | 28,645 | $211K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -67.5% | 28,449 | $209K |
| Bank of Montreal | 0.00% | Add +8.0% | 27,000 | $199K |
| T. Rowe Price Associates Inc. | 0.00% | Add +15.0% | 26,597 | $196K |
| PFG Investments, LLC | 0.01% | Add +32.5% | 26,500 | $195K |
| Intech Investment Management LLC | 0.00% | Reduce -4.4% | 25,756 | $190K |
| Royal Bank of Canada | 0.00% | Add +143.9% | 24,571 | $181K |
| XTX Topco Ltd | 0.01% | New | 24,155 | $178K |
| Apis Capital Advisors, LLC | 0.06% | Reduce -87.4% | 24,000 | $177K |
| Belvedere Trading LLC | 0.01% | New | 23,630 | $174K |
| SBI Securities Co., Ltd. | 0.00% | Add +127.1% | 21,279 | $157K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +9.9% | 20,840 | $153K |
| Leonteq Securities AG | 0.01% | Add +77.3% | 20,639 | $152K |
| Citigroup Inc. | 0.00% | Reduce -48.1% | 20,177 | $149K |
| Mercer Global Advisors Inc. | 0.00% | Add +47.3% | 19,434 | $143K |
| LPL Financial LLC | 0.00% | New | 19,227 | $142K |
| Penn Capital Management Company, LLC | 0.01% | New | 18,665 | $137K |
| Fielder Capital Group LLC | 0.04% | Add +0.1% | 18,070 | $133K |
| New York State Common Retirement Fund | 0.00% | Add +418.2% | 17,100 | $126K |
| Advisory Services Network, LLC | 0.00% | New | 13,835 | $125K |
| B. Riley Wealth Advisors, Inc. | 0.01% | Reduce -12.8% | 16,380 | $121K |
| Voya Investment Management LLC | 0.00% | Add +9.1% | 15,829 | $117K |
| Perennial Advisors, LLC | 0.02% | New | 15,000 | $110K |
| FORA Capital, LLC | 0.01% | New | 14,569 | $107K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 14,366 | $106K |
| AQR Capital Management | 0.00% | Reduce -40.9% | 14,035 | $103K |
| Wolverine Trading, LLC | 0.00% | New | 13,278 | $98K |
| KKM Financial LLC | 0.03% | No change | 12,000 | $88K |
| ProShare Advisors LLC | 0.00% | Reduce -1.5% | 11,653 | $86K |
| GTS Securities LLC | 0.00% | New | 11,311 | $83K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +96.7% | 10,890 | $80K |
| Avantax Advisory Services, Inc. | 0.00% | Add +3.5% | 10,493 | $77K |
| FMR LLC | 0.00% | Add +8.2% | 10,361 | $76K |
| Pale Fire Capital SE | 0.01% | Reduce -3.7% | 10,300 | $76K |
"% of holder's portfolio" is ASPI's weight in each manager's 13F, not the share of Asp Isotopes Inc. the manager owns.