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ASP ISOTOPES (ASPI)
NASDAQ
$4.58-$0.01 (-0.33%)
Price as of Jul 13, 2026 7:56 PM EDT- $630.8MMarket Cap
- -42.70%1-Year Change
- ChemicalsIndustry
ASP ISOTOPES (ASPI)
$4.58-$0.01 (-0.33%)
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 |
SMALLCAP WORLD FUND INC | 2.23% | 1.9M | 0 (0.00%) | Mar 31, 2026 |
EXCHANGE TRADED CONCEPTS TRUST | 1.76% | 1.5M | 0 (0.00%) | Apr 30, 2026 |
FIDELITY SALEM STREET TRUST | 1.38% | 1.1M | +1.1M (+92.44%) | Apr 30, 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 |
VANGUARD SCOTTSDALE FUNDS | 0.66% | 551,424 | +102,977 (+18.67%) | Feb 28, 2026 |
Current Ownership Distribution
- Institutions294.3M (71.25%)
- Mutual Funds82.9M (20.06%)
- Insiders35.9M (8.69%)
- Other0 (0.00%)
Insider Transactions
- 8.69% (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 |