Asp IsotopesASPI
13F holders, Q1 2025 (March 31)100holders +5
19new positions
13sold out
3famous investors
$4.69avg. 13F price*
At the end of Q1 2025, 100 institutions reported holding Asp Isotopes Inc. (ASPI) in their 13F filings, up 5 from Q4 2024. 19 opened new positions and 13 sold out. The largest holders were AWM Investment Company, Inc. ($21.2M), BlackRock, Inc. ($19.0M) and BNP PARIBAS ASSET MANAGEMENT Holding S.A. ($17.1M). 3 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio), Cliff Asness (0.0% of AQR Capital Management'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 Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 19 | $16.0M |
| Exits | 13 | $3.1M |
All 13F filers, Q4 2024 → Q1 2025: 4,902,552 shares bought and 4,548,585 shares sold, net +353,967 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 100 holders
| AWM Investment Company, Inc. | 2.92% | Add +6.2% | 4,511,186 | $21.2M |
| BlackRock, Inc. | 0.00% | Add +2.4% | 4,051,080 | $19.0M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.05% | Reduce -15.9% | 3,638,215 | $17.1M |
| Philadelphia Financial Management of San Francisco, LLC | 3.66% | Add +11.2% | 3,508,062 | $16.5M |
| Vanguard Group Inc. | 0.00% | Reduce -2.9% | 3,088,052 | $14.5M |
| Capital Research Global Investors | 0.00% | New | 2,868,062 | $13.5M |
| Telemark Asset Management, LLC | 0.91% | No change | 1,475,000 | $6.9M |
| Geode Capital Management, LLC | 0.00% | Add +6.6% | 1,253,321 | $5.9M |
| State Street Corp. | 0.00% | Add +1.7% | 1,047,344 | $4.9M |
| UBS Group AG | 0.00% | Reduce -48.1% | 1,015,464 | $4.8M |
| Gsa Capital Partners LLP | 0.24% | Reduce -29.6% | 569,578 | $2.7M |
| Northern Trust Corp. | 0.00% | Add +5.8% | 460,729 | $2.2M |
| Diametric Capital, LP | 2.20% | Add +29.4% | 393,025 | $1.8M |
| Rovida Investment Management Ltd | 0.49% | Add +59.8% | 350,000 | $1.6M |
| Susquehanna International Group, LLP | 0.00% | Reduce -27.7% | 277,846 | $1.3M |
| Group One Trading LLC | 0.05% | Add +301.7% | 269,628 | $1.3M |
| Morgan Stanley | 0.00% | Reduce -16.8% | 262,463 | $1.2M |
| JPMorgan Chase & Co. | 0.00% | Add +7.9% | 228,706 | $1.1M |
| Rathbones Group PLC | 0.00% | Add +16.9% | 205,929 | $966K |
| Two Sigma Investments, LP | 0.00% | Reduce -53.5% | 203,067 | $952K |
| Apis Capital Advisors, LLC | 0.43% | Add +10.7% | 191,000 | $896K |
| Marshall Wace, LLP | 0.00% | Add +20.4% | 178,134 | $835K |
| CenterBook Partners LP | 0.05% | Reduce -88.3% | 175,959 | $825K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +4.5% | 165,364 | $776K |
| Prelude Capital Management, LLC | 0.07% | Add +49.7% | 153,770 | $721K |
| Tudor Investment Corporation | 0.01% | New | 150,023 | $704K |
| Bank of New York Mellon Corp | 0.00% | Add +13.0% | 142,257 | $667K |
| Nuveen, LLC | 0.00% | — | 131,230 | $615K |
| Bank of America Corp. | 0.00% | Reduce -10.1% | 101,676 | $477K |
| Sculptor Capital LP | 0.02% | No change | 95,800 | $449K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -49.3% | 87,507 | $410K |
| PEAK6 LLC | 0.02% | New | 86,600 | $406K |
| Barclays PLC | 0.00% | Reduce -21.7% | 84,541 | $396K |
| Marex Group Ltd | 0.01% | Add +6.5% | 82,535 | $387K |
| Steward Partners Investment Advisory, LLC | 0.00% | New | 81,700 | $383K |
| Rhumbline Advisers | 0.00% | Add +8.2% | 65,326 | $306K |
| Destination Wealth Management | 0.01% | New | 56,964 | $267K |
| Balyasny Asset Management L.P. | 0.00% | New | 55,749 | $261K |
| Saranac Partners Ltd | 0.12% | No change | 44,195 | $207K |
| Deutsche Bank AG | 0.00% | Add +19.4% | 40,092 | $188K |
| Citigroup Inc. | 0.00% | Reduce -34.1% | 38,894 | $182K |
| MetLife Investment Management, LLC | 0.00% | Add +22.1% | 31,732 | $149K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +9.4% | 31,613 | $148K |
| Alliancebernstein L.P. | 0.00% | No change | 29,530 | $138K |
| Pekin Hardy Strauss, Inc. | 0.02% | Reduce -19.8% | 28,450 | $133K |
| Intech Investment Management LLC | 0.00% | Reduce -5.6% | 26,952 | $126K |
| Corebridge Financial, Inc. | 0.00% | Add +2.8% | 26,776 | $126K |
| Wells Fargo & Company | 0.00% | Add +6.7% | 26,115 | $122K |
| SVB Wealth LLC | 0.00% | Add +132.2% | 25,000 | $117K |
| Bank of Montreal | 0.00% | No change | 25,000 | $117K |
| AQR Capital Management | 0.00% | Reduce -21.2% | 23,746 | $111K |
| T. Rowe Price Associates Inc. | 0.00% | Add +6.8% | 23,121 | $109K |
| Bantamac Capital, LLC | 0.05% | New | 22,000 | $103K |
| Invesco Ltd. | 0.00% | Reduce -2.8% | 20,443 | $96K |
| PFG Investments, LLC | 0.01% | New | 20,000 | $94K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +5.0% | 18,962 | $89K |
| B. Riley Wealth Advisors, Inc. | 0.00% | New | 18,780 | $88K |
| Millennium Management | 0.00% | Add +50.3% | 18,313 | $86K |
| Fielder Capital Group LLC | 0.02% | Add +0.0% | 18,060 | $85K |
| Fortitude Advisory Group L.L.C. | 0.06% | New | 13,600 | $77K |
| Voya Investment Management LLC | 0.00% | Reduce -3.5% | 14,511 | $68K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 14,366 | $67K |
| Engineers Gate Manager LP | 0.00% | Reduce -29.0% | 14,107 | $66K |
| Mercer Global Advisors Inc. | 0.00% | New | 13,191 | $62K |
| Sanctuary Advisors, LLC | 0.00% | Add +1.1% | 13,184 | $62K |
| Cibc World Markets Corp. | 0.00% | New | 12,128 | $57K |
| KKM Financial LLC | 0.02% | Reduce -30.4% | 12,000 | $56K |
| ProShare Advisors LLC | 0.00% | Reduce -19.8% | 11,830 | $55K |
| Leonteq Securities AG | 0.00% | No change | 11,639 | $53K |
| Pale Fire Capital SE | 0.01% | Reduce -8.6% | 10,700 | $50K |
| Avantax Advisory Services, Inc. | 0.00% | Add +1.4% | 10,141 | $48K |
| Royal Bank of Canada | 0.00% | Add +838.7% | 10,072 | $47K |
| Snowden Capital Advisors LLC | 0.00% | No change | 10,000 | $47K |
| FMR LLC | 0.00% | Add +6.4% | 9,580 | $45K |
| SBI Securities Co., Ltd. | 0.00% | Add +84.8% | 9,370 | $44K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -13.3% | 8,859 | $42K |
| National Bank of Canada | 0.00% | No change | 8,600 | $40K |
| Osaic Holdings, Inc. | 0.00% | New | 6,600 | $31K |
| Legal & General Group Plc | 0.00% | Add +17.1% | 6,484 | $30K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +29.5% | 5,537 | $26K |
| Hanson & Doremus Investment Management | 0.00% | Reduce -16.7% | 5,000 | $23K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 3,883 | $18K |
| California State Teachers Retirement System | 0.00% | No change | 3,765 | $18K |
| New York State Common Retirement Fund | 0.00% | No change | 3,300 | $15K |
| BNP Paribas Financial Markets | 0.00% | Reduce -59.6% | 3,001 | $14K |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 2,680 | $13K |
| Simplex Trading, LLC | 0.00% | Add +101.6% | 2,578 | $12K |
| Amalgamated Bank | 0.00% | Add +31.9% | 1,808 | $8K |
| MAI Capital Management | 0.00% | Reduce -50.0% | 1,125 | $5K |
| CIBC Private Wealth Group LLC | 0.00% | No change | 300 | $1K |
| ORG Partners LLC | 0.00% | New | 235 | $1K |
| Cwm, LLC | 0.00% | Add +46.8% | 116 | $1K |
| GAMMA Investing LLC | 0.00% | New | 145 | $680 |
| Nisa Investment Advisors, LLC | 0.00% | No change | 138 | $647 |
| Rise Advisors, LLC | 0.00% | New | 119 | $558 |
| Parkside Financial Bank & Trust | 0.00% | New | 105 | $487 |
| Sterling Capital Management LLC | 0.00% | No change | 55 | $258 |
| US Bancorp \de | 0.00% | No change | 54 | $253 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 44 | $206 |
| Lindbrook Capital, LLC | 0.00% | New | 31 | $145 |
"% of holder's portfolio" is ASPI's weight in each manager's 13F, not the share of Asp Isotopes Inc. the manager owns.