2m 2m 2m 2m 2m 2m 2m
ASP ISOTOPES (ASPI)
NASDAQ
$4.05+$0.05 (+1.25%)
Price as of Aug 24, 2026 7:29 AM EDT- $613.2MMarket Cap
- -57.20%1-Year Change
- ChemicalsIndustry
ASP ISOTOPES (ASPI)
$4.05+$0.05 (+1.25%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 7.32% | 9.2M | +889,054 (+9.65%) | Jun 30, 2026 |
ENCOMPASS CAPITAL ADVISORS LLC | 5.21% | 6.6M | -350,300 (-5.34%) | Jun 30, 2026 |
VANGUARD GROUP INC | 5.09% | 6.4M | +1.9M (+29.49%) | Dec 31, 2025 |
VANGUARD CAPITAL MANAGEMENT LLC | 3.96% | 5.0M | -77,511 (-1.56%) | Jun 30, 2026 |
ROVIDA INVESTMENT MANAGEMENT LTD | 3.26% | 4.1M | 0 (0.00%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 3.14% | 4.0M | +1.3M (+31.67%) | Dec 31, 2024 |
UBS GROUP AG | 2.58% | 3.2M | +405,924 (+12.50%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 3.93% | 5.0M | +410,761 (+8.30%) | Mar 31, 2026 |
EXCHANGE TRADED CONCEPTS TRUST | 1.80% | 2.3M | +804,965 (+35.51%) | May 31, 2026 |
SMALLCAP WORLD FUND INC | 1.47% | 1.9M | 0 (0.00%) | Mar 31, 2026 |
FIDELITY SALEM STREET TRUST | 0.91% | 1.1M | +1.1M (+92.44%) | Apr 30, 2026 |
FIDELITY CONCORD STREET TRUST | 0.80% | 1.0M | +7,398 (+0.73%) | May 31, 2026 |
VANGUARD SCOTTSDALE FUNDS | 0.56% | 700,678 | +149,254 (+21.30%) | May 31, 2026 |
T. Rowe Price New Horizons Fund, Inc. | 0.54% | 684,559 | 0 (0.00%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions366.4M (74.68%)
- Mutual Funds88.4M (18.01%)
- Insiders35.9M (7.31%)
- Other0 (0.00%)
Insider Transactions
- 7.31% (35.9M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 3Number of InsiderSelling (last 12 months)
- $29.6MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
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 |