ASP Isotopes (ASPI) COO Robert Ainscow Sells 25,000 Shares

What Happened
Robert Ainscow, Chief Operating Officer of ASP Isotopes Inc. (ASPI), sold 25,000 shares in an open-market transaction on September 2, 2026. The weighted-average reported price was $3.90 per share, with total proceeds of $97,625. This was a sale (code S), executed under a pre-established Rule 10b5-1 trading plan.

Key Details

• Transaction date: 2026-09-02 (reported on Form 4 filed 2026-09-04) — appears timely (filed within the typical 2 business-day window).
• Shares sold: 25,000; weighted-average price: $3.90; total proceeds: $97,625.
• Price range: individual trades occurred between $3.75 and $3.96; the $3.90 figure is a weighted average. (F2: filer can provide a breakdown of shares sold at each price on request.)
• Footnote: Sale effected pursuant to a Rule 10b5-1 trading plan adopted Dec 13, 2024 (F1).
• Shares owned after the transaction: not disclosed in the provided filing excerpt.

Context
Sales under 10b5-1 plans are pre-arranged and often reflect scheduled or routine selling rather than a contemporaneous view on the company. This report reflects a straightforward sale by an executive, not an option exercise, gift, or acquisition.