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ASP ISOTOPES (ASPI)
NASDAQ
$7.28-$1.05 (-12.64%)
Price as of Jun 03, 2026 5:45 PM EDT- $979.5MMarket Cap
- 5.04%1-Year Change
- ChemicalsIndustry
ASP ISOTOPES (ASPI)
$7.28-$1.05 (-12.64%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 10.02% | 8.3M | +1.5M (+18.48%) | Mar 31, 2026 |
ENCOMPASS CAPITAL ADVISORS LLC | 8.32% | 6.9M | +6.9M (+100.00%) | Mar 31, 2026 |
VANGUARD GROUP INC | 7.71% | 6.4M | +1.9M (+29.49%) | Dec 31, 2025 |
N/A | 6.09% | 5.1M | +5.1M (+100.00%) | Mar 31, 2026 |
ROVIDA INVESTMENT MANAGEMENT LTD | 4.93% | 4.1M | 0 (0.00%) | Mar 31, 2026 |
BLACKROCK FUNDING, INC. /DE | 4.76% | 4.0M | +1.3M (+31.67%) | Dec 31, 2024 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3.59% | 3.0M | +854,200 (+28.61%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 5.96% | 5.0M | +410,761 (+8.30%) | Mar 31, 2026 |
iSHARES TRUST | 5.22% | 4.3M | +874,130 (+20.15%) | Mar 31, 2026 |
SMALLCAP WORLD FUND INC | 2.23% | 1.9M | 0 (0.00%) | Mar 31, 2026 |
EXCHANGE TRADED CONCEPTS TRUST | 1.76% | 1.5M | +55,855 (+3.82%) | Feb 28, 2026 |
FIDELITY CONCORD STREET TRUST | 1.21% | 1.0M | +118,980 (+11.86%) | Feb 28, 2026 |
T. Rowe Price New Horizons Fund, Inc. | 0.82% | 684,559 | 0 (0.00%) | Mar 31, 2026 |
SCHWAB STRATEGIC TRUST | 0.73% | 610,180 | +98,149 (+16.09%) | Feb 28, 2026 |
Current Ownership Distribution
- Institutions293.7M (72.80%)
- Mutual Funds77.8M (19.27%)
- Insiders32.0M (7.93%)
- Other0 (0.00%)
Insider Transactions
- 7.93% (32.0M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 4Number of InsiderSelling (last 12 months)
- $201.0MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Ainscow Robert COO | Sell | Mar 06, 2026 | $45,894.28 | 8,438 | $5.44 | 1.5M |
Mann Paul Elliot Executive Chairman | Sell | Mar 02, 2026 | $881,463.71 | 162,153 | $5.44 | 7.6M |
Wider Todd | Award | Dec 18, 2025 | $0.00 | 36,548 | $0.00 | 772,247 |
Kiessling Heather Chief Financial Officer | Sell | Dec 18, 2025 | $463,840.00 | 80,000 | $5.80 | 732,500 |
Hunter Ralph L. JR | Award | Dec 18, 2025 | $0.00 | 36,548 | $0.00 | 47,018 |
Ryan Robert John Andrew | Award | Dec 18, 2025 | $0.00 | 36,548 | $0.00 | 652,222 |
Ainscow Robert Interim CEO and COO | Sell | Nov 25, 2025 | $144,225.00 | 25,000 | $5.77 | 1.6M |
Ainscow Robert Interim CEO and COO | Sell | Nov 17, 2025 | $506,722.50 | 67,500 | $7.51 | 1.6M |
Wider Todd | Award | Nov 12, 2025 | $0.00 | 25,469 | $0.00 | 735,699 |
Gorley Michael | Sell | Sep 30, 2025 | $624,236.80 | 64,000 | $9.75 | 81,360 |
Mann Paul Elliot Chief Executive Officer | Exempt | Sep 09, 2025 | $432,000.00 | 216,000 | $2.00 | 7.5M |
Mann Paul Elliot Chief Executive Officer | In Kind | Sep 09, 2025 | $431,993.32 | 50,644 | $8.53 | 7.4M |
Mann Paul Elliot Chief Executive Officer | Exempt | Sep 09, 2025 | $2.0M | 1.0M | $2.00 | 8.4M |
Mann Paul Elliot Chief Executive Officer | In Kind | Sep 09, 2025 | $2.0M | 234,466 | $8.53 | 8.2M |
Mann Paul Elliot Chief Executive Officer | Sell | Sep 09, 2025 | $680,122.52 | 81,077 | $8.39 | 8.1M |
Mann Paul Elliot Chief Executive Officer | Exempt | Sep 09, 2025 | $0.00 | 216,000 | $0.00 | 0 |
Mann Paul Elliot Chief Executive Officer | Exempt | Sep 09, 2025 | $0.00 | 1.0M | $0.00 | 0 |
Mann Paul Elliot Chief Executive Officer | Sell | Sep 08, 2025 | $691,408.02 | 81,076 | $8.53 | 7.2M |
Hunter Ralph L. JR | Award | Sep 06, 2025 | $0.00 | 10,470 | $0.00 | 10,470 |
Mann Paul Elliot Chief Executive Officer | Sell | Apr 17, 2025 | $1.8M | 316,666 | $5.62 | 7.3M |
Ainscow Robert Chief Operating Officer | Sell | Apr 17, 2025 | $374,760.83 | 66,668 | $5.62 | 1.4M |
Mann Paul Elliot Chief Executive Officer | Sell | Apr 16, 2025 | $1.7M | 316,667 | $5.45 | 7.6M |
Ainscow Robert Chief Operating Officer | Sell | Apr 16, 2025 | $363,023.04 | 66,666 | $5.45 | 1.5M |
Mann Paul Elliot Chief Executive Officer | Sell | Apr 15, 2025 | $1.8M | 316,667 | $5.75 | 7.9M |
Ainscow Robert Chief Operating Officer | Sell | Apr 15, 2025 | $383,562.83 | 66,666 | $5.75 | 1.6M |
Ainscow Robert Chief Operating Officer | Award | Apr 14, 2025 | $0.00 | 400,000 | $0.00 | 1.6M |
Mann Paul Elliot Chief Executive Officer | Award | Apr 14, 2025 | $0.00 | 1.4M | $0.00 | 8.3M |
Kiessling Heather Chief Financial Officer | Award | Apr 14, 2025 | $0.00 | 400,000 | $0.00 | 812,500 |
Moore Duncan | Award | Dec 09, 2024 | $0.00 | 77,626 | $0.00 | 974,315 |
Moore Duncan | Award | Dec 09, 2024 | $0.00 | 95,238 | $0.00 | 1.1M |