SEC Filing Summary

Heather Kiessling, Chief Financial Officer of ASP Isotopes Inc., acquired 840,000 shares of Common Stock on May 28, 2026. This transaction is an acquisition, indicated by the code "A". The shares were acquired at a price of $0.0 per share, as indicated by a footnote. Following this transaction, Ms. Kiessling owns 1,549,376 shares of Common Stock. The shares are held directly. This award of common stock shall vest in semi-annual installments over a four-year period beginning on the grant date.