ASPI
ASP ISOTOPES (ASPI)
NASDAQ
$7.18+$0.09 (+1.34%)
Price as of Jun 23, 2026 7:52 PM EDT
  • $916.6M
    Market Cap
  • -0.41%
    1-Year Change
  • Chemicals
    Industry

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

Current Ownership Distribution

  • Institutions294.2M (72.08%)
  • Mutual Funds77.9M (19.07%)
  • Insiders36.1M (8.84%)
  • Other0 (0.00%)

Insider Transactions

  • 8.84% (36.1M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 1
    Number of InsiderSelling (last 12 months)
  • $15.9M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Ainscow Robert
COO
Sell
Jun 08, 2026
$59,057.56
8,438
$7.00
2.3M