Security record
ASPI
ASP Isotopes Inc. Common Stock · Basic Materials · Chemicals
74Tracked holders
+4Δ holders
41.00MShares held
$254.80MReported value
+9New positions
−5Exits
Momentum inputs (comparable managers):
holder breadth +5.7% ·
share flow +9.6% ·
net new positions +5.4%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 74 | +4 | 41.00M | $254.80M | +9 | −5 |
| Q1 2026 | 73 | 0 | 37.51M | $165.79M | +5 | −5 |
| Q4 2025 | 73 | -2 | 41.79M | $223.56M | +1 | −3 |
| Q3 2025 | 16 | +2 | 19.49M | $187.45M | +2 | — |
| Q2 2025 | 11 | +1 | 10.37M | $76.34M | +1 | — |
| Q1 2025 | 7 | 0 | 2.75M | $12.89M | — | — |
| Q4 2024 | 7 | +2 | 2.85M | $12.93M | +2 | — |
| Q3 2024 | 4 | 0 | 2.17M | $6.03M | +1 | −1 |
| Q2 2024 | 4 | — | 1.51M | $4.59M | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 9.22M | +10.7% | $57.33M | 0.0% | ▲ Add | 5 | SEC ↗ ×11 |
| 2 | Vanguard Capital Management Llc | 4.98M | -1.5% | $30.99M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | UBS Group AG | 3.25M | +14.3% | $20.20M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 4 | Geode Capital Management ✦ (passive) | 2.95M | +7.5% | $18.33M | 0.0% | ▲ Add | 9 | SEC ↗ ×2 |
| 5 | Alyeska Investment Group, L.P. | 2.84M | +5.6% | $17.69M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | State Street Global Advisors ✦ (passive) | 2.60M | +11.8% | $16.14M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 7 | BNP Paribas Asset Management… | 1.58M | +77.7% | $9.81M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 8 | Morgan Stanley ✦ | 1.16M | -26.3% | $7.23M | 0.0% | ▼ Trim | 4 | SEC ↗ ×6 |
| 9 | Northern Trust Corp | 1.01M | +7.4% | $6.26M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 10 | Charles Schwab Investment… | 935.35K | +4.2% | $5.82M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | Barclays Plc | 847.78K | -16.3% | $5.27M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 12 | Marshall Wace ✦ | 835.66K | New | $5.20M | 0.0% | New | 1 | SEC ↗ ×2 |
| 13 | Man Group plc | 828.38K | New | $5.15M | 0.0% | New | 1 | SEC ↗ |
| 14 | Pacer Advisors, Inc. | 734.96K | +45.9% | $4.57M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | Bank Of America Corp /De/ | 709.06K | +319.6% | $4.41M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 16 | Susquehanna International Group, Llp | 705.15K | -33.3% | $4.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | Goldman Sachs Group ✦ | 576.28K | +9.4% | $3.58M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 18 | Nuveen, LLC | 493.42K | +137.9% | $3.07M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 19 | Group One Trading Llc | 458.38K | -23.0% | $2.85M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 20 | Citadel Advisors ✦ | 357.59K | -53.4% | $2.22M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 21 | Bank of New York Mellon Corp | 356.87K | +23.5% | $2.22M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 22 | Bank Of Montreal /Can/ | 262.56K | +13.3% | $1.63M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 23 | JPMorgan Chase ✦ | 241.05K | -11.8% | $1.50M | 0.0% | ▼ Trim | 4 | SEC ↗ ×5 |
| 24 | Swiss National Bank | 214.70K | +2.2% | $1.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | Invesco Ltd. | 203.98K | +260.2% | $1.27M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 26 | Russell Investments Group, Ltd. | 181.78K | +24.8% | $1.13M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 27 | Stifel Financial Corp | 166.03K | +37.8% | $1.03M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 28 | UBS AM, a distinct business unit of… | 161.22K | +43.3% | $1.00M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 29 | Cetera Investment Advisers | 152.97K | +33.2% | $951,442 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 30 | Rhumbline Advisers | 141.28K | +20.1% | $878,776 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 31 | Squarepoint Ops LLC | 123.95K | +75.6% | $770,975 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 32 | Citigroup Inc | 121.31K | +61.4% | $754,542 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 33 | Deutsche Bank Ag\ | 120.37K | +28.5% | $748,683 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 34 | Point72 Asset Management ✦ | 120.16K | New | $747,389 | 0.0% | New | 1 | SEC ↗ |
| 35 | Wells Fargo & Company/Mn | 116.12K | +133.5% | $722,261 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 36 | National Bank Of Canada /Fi/ | 100.00K | +16.1% | $622,000 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 37 | T. Rowe Price ✦ | 96.91K | +20.2% | $603,000 | 0.0% | ▲ Add | 9 | SEC ↗ |
| 38 | Osaic Holdings, Inc. | 89.88K | +66.5% | $559,023 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 39 | Legal & General Group Plc | 86.95K | +56.9% | $540,835 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 40 | Alliancebernstein L.P. | 107.79K | +178.1% | $476,432 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 41 | Sei Investments Co | 69.80K | -53.0% | $434,131 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 42 | Creative Planning | 55.78K | +34.1% | $346,946 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 43 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 53.64K | +0.6% | $333,628 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | American Century Companies Inc | 48.02K | New | $298,691 | 0.0% | New | 1 | SEC ↗ |
| 45 | Royal Bank Of Canada | 38.23K | +0.7% | $238,000 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 46 | Quantinno Capital Management LP | 31.09K | -6.0% | $193,361 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 47 | Manufacturers Life Insurance… | 30.66K | +0.5% | $190,680 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 48 | LPL Financial LLC | 30.08K | -31.9% | $187,122 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | Universal- Beteiligungs- und… | 30.00K | New | $186,600 | 0.0% | New | 1 | SEC ↗ |
| 50 | New York State Common Retirement… | 29.20K | 0.0% | $181,624 | 0.0% | Held | 3 | SEC ↗ |
| 51 | Neuberger Berman Group LLC | 29.12K | +45.8% | $181,120 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 52 | Zurcher Kantonalbank (Zurich… | 23.60K | 0.0% | $146,792 | 0.0% | Held | 3 | SEC ↗ |
| 53 | Voya Investment Management Llc | 22.09K | +15.4% | $137,406 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Jane Street Group, Llc | 21.09K | -96.9% | $131,205 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Mml Investors Services, Llc | 20.86K | New | $129,743 | 0.0% | New | 1 | SEC ↗ |
| 56 | Hrt Financial Lp | 19.50K | New | $121,000 | 0.0% | New | 1 | SEC ↗ |
| 57 | Bnp Paribas Financial Markets | 19.16K | -30.7% | $119,150 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 58 | Pictet Asset Management Holding SA | 19.06K | +68.1% | $118,528 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Prudential Financial Inc | 18.37K | +9.1% | $114,261 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 60 | Fidelity (FMR) ✦ | 17.82K | +24.1% | $110,869 | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 61 | Amundi | 17.21K | New | $107,059 | 0.0% | New | 1 | SEC ↗ |
| 62 | Captrust Financial Advisors | 15.34K | +24.6% | $95,415 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | ProShare Advisors LLC | 15.25K | -7.5% | $94,862 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | State Of Wisconsin Investment Board | 14.38K | New | $89,462 | 0.0% | New | 1 | SEC ↗ |
| 65 | Simplex Trading, Llc | 13.66K | -77.8% | $84,990 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | AQR Capital Management ✦ | 13.59K | -42.9% | $84,518 | 0.0% | ▼ Trim | 8 | SEC ↗ ×4 |
| 67 | Wealthfront Advisers LLC | 13.19K | +29.9% | $82,029 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 68 | Victory Capital Management Inc | 13.06K | +2.0% | $81,227 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Balyasny Asset Management L.P. | 11.64K | -84.8% | $72,376 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 70 | Rockefeller Capital Management L.P. | 6.25K | +24.4% | $38,844 | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 71 | Jones Financial Companies Lllp | 5.80K | +103.4% | $35,792 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 72 | Pnc Financial Services Group, Inc. | 1.48K | +174.3% | $9,212 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 73 | Optiver Holding B.V. | 406 | -42.8% | $2,525 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 74 | Us Bancorp \De\ | 55 | -8.3% | $342 | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $5.20M | 0.0% |
| Man Group plc | $5.15M | 0.0% |
| Point72 Asset Management | $747,389 | 0.0% |
| American Century Companies Inc | $298,691 | 0.0% |
| Universal- Beteiligungs- und… | $186,600 | 0.0% |
| Mml Investors Services, Llc | $129,743 | 0.0% |
| Hrt Financial Lp | $121,000 | 0.0% |
| Amundi | $107,059 | 0.0% |
| State Of Wisconsin Investment… | $89,462 | 0.0% |
Exited
| IMC-Chicago, LLC | $1.19M | was 0.0% |
| Tudor Investment Corp Et Al | $711,753 | was 0.0% |
| Peak6 Llc | $350,117 | was 0.0% |
| Mercer Global Advisors Inc… | $65,323 | was 0.0% |
| Commonwealth Equity Services… | $47,160 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 175 holders, 63.06M shares, $277.19M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Sep 30
Ryan Robert John Andrew
Director · 15.00K sh @ 2.68 · $40,200
Sep 28
Ryan Robert John Andrew
Director · 8.00K sh @ 2.70 · $21,600
Open-market sales (S)
Sep 08
Ainscow Robert
Officer · 8.44K sh · $36,216
Sep 04
Mann Paul Elliot
Officer, Director · 83.76K sh · $343,412
Sep 03
Mann Paul Elliot
Officer, Director · 83.76K sh · $328,331
Sep 02
Ainscow Donald George
Officer · 23.68K sh · $92,107
Sep 02
Ainscow Robert
Officer · 25.00K sh · $97,625
Sep 02
Mann Paul Elliot
Officer, Director · 83.76K sh · $327,494
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2026 ·
Methodology ·
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