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ASP ISOTOPES (ASPI)
NASDAQ
$1.96+$0.01 (+0.51%)
Price as of Oct 23, 2026 7:58 PM EDT- $320.4MMarket Cap
- -80.19%1-Year Change
- Specialty ChemicalsIndustry
ASP ISOTOPES (ASPI)
$1.96+$0.01 (+0.51%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 6.01% | 9.2M | +889,054 (+9.65%) | Jun 30, 2026 |
ENCOMPASS CAPITAL ADVISORS LLC | 4.28% | 6.6M | -350,300 (-5.34%) | Jun 30, 2026 |
VANGUARD GROUP INC | 4.18% | 6.4M | +1.9M (+29.49%) | Dec 31, 2025 |
VANGUARD CAPITAL MANAGEMENT LLC | 3.25% | 5.0M | -77,511 (-1.56%) | Jun 30, 2026 |
ROVIDA INVESTMENT MANAGEMENT LTD | 2.67% | 4.1M | 0 (0.00%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 2.58% | 4.0M | +1.3M (+31.67%) | Dec 31, 2024 |
UBS GROUP AG | 2.12% | 3.2M | +405,924 (+12.50%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 3.16% | 4.8M | -102,323 (-2.11%) | Jun 30, 2026 |
FIDELITY SALEM STREET TRUST | 0.84% | 1.3M | +1.2M (+90.89%) | Jul 31, 2026 |
AMERICAN BEACON SELECT FUNDS | 0.55% | 839,371 | +839,371 (+100.00%) | Jul 31, 2026 |
Pacer Funds Trust | 0.48% | 738,035 | +227,431 (+30.82%) | Jul 31, 2026 |
VANGUARD SCOTTSDALE FUNDS | 0.46% | 700,678 | +149,254 (+21.30%) | May 31, 2026 |
SCHWAB STRATEGIC TRUST | 0.39% | 604,257 | -5,923 (-0.98%) | May 31, 2026 |
TIAA-CREF FUNDS | 0.28% | 429,723 | +230,012 (+53.53%) | Jul 31, 2026 |
Current Ownership Distribution
- Institutions366.5M (70.87%)
- Mutual Funds115.0M (22.23%)
- Insiders35.7M (6.90%)
- Other0 (0.00%)
Insider Transactions
- 6.90% (35.7M)Current InsiderOwnership (%, shares)
- 1Number of InsiderBuying (last 12 months)
- $3.5MAmount of InsiderBuying (last 12 months)
- 4Number of InsiderSelling (last 12 months)
- $167.2MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Kiessling Heather Chief Financial Officer | Sell | Oct 16, 2026 | $47,807.70 | 21,830 | $2.19 | 1.5M |
Ainscow Robert COO | Sell | Oct 14, 2026 | $47,565.00 | 22,500 | $2.11 | 2.2M |
Ryan Robert John Andrew | Buy | Sep 30, 2026 | $40,200.00 | 15,000 | $2.68 | 675,222 |
Ryan Robert John Andrew | Buy | Sep 28, 2026 | $21,600.00 | 8,000 | $2.70 | 660,222 |
Ainscow Robert COO | Sell | Sep 08, 2026 | $36,215.90 | 8,438 | $4.29 | 2.2M |
Mann Paul Elliot Chairman and CEO | Sell | Sep 04, 2026 | $343,411.90 | 83,759 | $4.10 | 9.3M |
Mann Paul Elliot Chairman and CEO | Sell | Sep 03, 2026 | $328,331.36 | 83,758 | $3.92 | 9.4M |
Ainscow Robert COO | Sell | Sep 02, 2026 | $97,625.00 | 25,000 | $3.90 | 2.3M |
Mann Paul Elliot Chairman and CEO | Sell | Sep 02, 2026 | $327,493.78 | 83,758 | $3.91 | 9.5M |
Kiessling Heather Chief Financial Officer | Sell | Jul 01, 2026 | $145,218.72 | 23,124 | $6.28 | 1.5M |
Ainscow Donald George EVP, Gen Counsel, Secretary | Sell | Jun 30, 2026 | $614,000.00 | 100,000 | $6.14 | 800,000 |
Ainscow Robert COO | Sell | Jun 08, 2026 | $59,057.56 | 8,438 | $7.00 | 2.3M |