Form 4 Tracker
Heather Kiessling

Chief Financial Officer · 2 filings · Latest: May 28, 2026

ASP Isotopes Inc.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
ASPI
Heather KiesslingChief Financial OfficerApr 15, 2026
Sale
$5.4823,124$126.7K709,376
ASPI
Heather KiesslingApr 15, 2026
Proposed Sale
$5.0046,248$231.2K
ASPI
Heather KiesslingDec 18, 2025
Proposed Sale
$5.7680,000$460.8K