Form 4 Filing for ASP Isotopes Inc.

Donald Ainscow, acting as attorney-in-fact for Robert John Andrew Ryan, reported a purchase of 8,000 shares of ASP Isotopes Inc. common stock on September 28, 2026. The weighted average price for these shares was $2.70, with individual transactions ranging from $2.56 to $2.79. Following this transaction, the total ownership of common stock stands at 660,222 shares. This filing indicates a change in beneficial ownership for a director.