Asp Isotopes (ASPI): Chief Operating Officer sold ~$72K

~$72K

Approx. value · 8,438 sh @ $8.53

1.41M

Holds after · shares reported

Traded

Sep 8, 2025

Filed

Sep 11, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Aug 29, 2025InsiderDirector sold ~$696K of ASPI shares in the open market
2. Sep 6, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“On September 6, 2025, the Board of Directors (the “Board”) of ASP Isotopes Inc. (the “Company”), effective as of September 8, 2025, increased the size of the Board to seven (7) members and elected Ralph L. Hunter to fill the vacancy on the Board resulting from such increase in the number of directors.”
3. Sep 8, 2025 · this disclosureInsiderOfficer sold ~$72K of ASPI shares in the open market

What came next

1. Sep 8, 2025InsiderCEO sold ~$691K of ASPI shares in the open market
2. Sep 9, 2025InsiderCEO sold ~$680K of ASPI shares in the open market
3. Sep 29, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“As previously announced, effective October 1, 2025, Paul Mann, the founder, Chairman and Chief Executive Officer of ASP Isotopes Inc. (the “Company”), was appointed Executive Chairman of the Company and began taking a temporary leave of absence from his Chief Executive Officer duties for health reasons.”
4. Oct 14, 2025Company filing · Form 8-K · Material agreement, Other newsSigned an important agreement, and reported other company news
5. Nov 7, 2025Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations (and 1 more item)
6. Nov 27, 2025Company filing · Form 8-K · Material agreement, Other newsSigned an important agreement, and reported other company news
7. Dec 2, 2025Company filing · Form 8-K · Executive changeChanged a top executive or board member“As previously announced, effective January 19, 2026: (i), Paul Mann, the founder and Executive Chairman of ASP Isotopes Inc. (the “Company”), will resume his role as the Company’s Chief Executive Officer and continue as Executive Chairman, and (ii) Robert Ainscow, who serves as Interim Chief Executive Officer during Mr. Mann’s medical leave of absence, will continue in his position as Chief Operating Officer.”

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Asp Isotopes

For Asp Isotopes, OQRO holds 6 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ASPI page.

Other recent filings by Robert Ainscow, Chief Operating Officer

• SEC Form 4 at Asp Isotopes (ASPI)Oct 17, 2026
• SEC Form 4 at Asp Isotopes (ASPI)Apr 17, 2025
• SEC Form 4 at Asp Isotopes (ASPI)Apr 17, 2025
• SEC Form 4 at Asp Isotopes (ASPI)Apr 17, 2025

The full history of Robert Ainscow, Chief Operating Officer is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Asp Isotopes

• SEC Form 4Oct 22, 2026
• SEC Form 4Oct 17, 2026
• SEC Form 144Oct 16, 2026
• SEC Form 144Oct 14, 2026
• SEC Form 4Oct 1, 2026
• SEC Form 4Sep 30, 2026

Everything OQRO holds on this company is on its ASPI page.