ASP Isotopes Director Sells Over $60K in Shares

Duncan Moore reduces stake in the isotope production company by 1.1%

Apr. 18, 2026 at 3:26am

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An extreme close-up of industrial isotope production equipment, including centrifuges, pipes, and control panels, conveying the heavy, tangible nature of the financial and technological infrastructure behind the isotope industry.An insider's view of the complex machinery and technology powering the isotope production industry.Washington Today

ASP Isotopes Inc. (NASDAQ:ASPI) Director Duncan Moore sold 11,642 shares of the company's stock on Thursday, April 16th. The shares were sold at an average price of $5.21, resulting in a total transaction of $60,654.82. Following the sale, Moore still owns 1,044,928 shares of the isotope production company, valued at approximately $5.44 million.

Why it matters

Insider transactions, such as this sale by a director, can provide insights into a company's performance and the sentiment of its leadership. The sale represents a 1.1% decrease in Moore's ownership stake, which may signal a shift in his outlook on ASP Isotopes' prospects.

The details

The transaction was disclosed in a filing with the Securities & Exchange Commission. ASP Isotopes is a development-stage advanced materials company focused on the production and commercialization of isotopes for the medical and industrial sectors.

  • The shares were sold on Thursday, April 16th, 2026.
  • The sale represented a 1.1% decrease in Moore's ownership of ASP Isotopes.

The players

Duncan Moore

A director at ASP Isotopes Inc., a NASDAQ-listed advanced materials company focused on isotope production.

ASP Isotopes Inc.

A development-stage advanced materials company that focuses on the production and commercialization of isotopes for the medical and industrial sectors.

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What they’re saying

“This represents a 1.10% decrease in their ownership of the stock.”

— Duncan Moore, Director

What’s next

The transaction is subject to regulatory filings and disclosures, and investors will likely monitor any further changes in insider ownership or trading activity at ASP Isotopes.

The takeaway

Insider transactions can provide valuable insights into a company's performance and the sentiment of its leadership. This sale by a director at ASP Isotopes, while relatively small, may signal a shift in the outlook for the isotope production company.