Form4.ai tracks every SEC insider trade in real time. See every ASPI insider filing with a free account — no card.
See every ASPI insider filing — free account, no card.
Free accountASP Isotopes Inc. (ASPI) has 8 SEC Form 4 insider filings on record in the last 90 days. That includes 2 insider purchases totalling $62K, and 6 sales totalling $1.3M. Most recent filing: Oct. 21, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 21, 2026 SEC filing | Kiessling Heather Chief Financial Officer | Sold | $47,808 | — |
| Oct 16, 2026 SEC filing | Ainscow Robert COO | Sold | $47,565 | — |
| Oct 1, 2026 SEC filing | Ryan Robert John Andrew Director | Bought | $40,200 | -20.5% 30D |
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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.