ASP Isotopes Inc. (ASPI) has 8 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 8 sales totalling $2.8M. Most recent filing: Sept. 10, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
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| Sept. 10, 2026 filed Sept. 8, 2026 | Ainscow Robert COO | −$36,216 | 8,438 | −0% | Yes | |
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| Sept. 4, 2026 filed Sept. 2, 2026 | Ainscow Donald George EVP, Gen Counsel, Secretary | −$92,107 | 23,678 | −3% | No | |
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| Sept. 4, 2026 filed Sept. 2, 2026 | Ainscow Robert COO | −$97,625 | 25,000 | −1% | Yes | |
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| Sept. 4, 2026 filed Sept. 2, 2026 | Mann Paul Elliot Chairman and CEO | −$999,237 | 251,275 | −3% | Yes | |
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| July 2, 2026 filed July 1, 2026 | Kiessling Heather Chief Financial Officer | −$145,219 | 23,124 | −1% | Yes | |
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Showing the 5 most recent of 8 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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