Robert Ainscow sold $72k of ASPI
Chief Operating Officer at ASP Isotopes Inc.. 8,438 shares at an average of $8.53, traded Sep 8, 2025, filed Sep 10, 2025.
Score components
- +20RoleCOO
- +8Trade size$72k at market
- 0Share of holdings soldSold 0.6% of holdings
- +15Cluster4 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +21.0%, 3m -26.3%, 6m -32.1%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001477932-25-006620, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 8, 2025 | SOpen-market sale Common Stock10b5-1 | -8,438 | $8.53 | $72k | 1,411,554 | Sep 10, 2025 |
| Sep 9, 2025 | MOption exercise Common Stock10b5-1 | +150,000 | $0.25 | $38k | 1,564,554 | Sep 10, 2025 |
| Sep 9, 2025 | FTax withholding Common Stock10b5-1 | -4,396 | $8.53 | $37k | 1,557,158 | Sep 10, 2025 |
| Sep 9, 2025 | MOption exercise Common Stock10b5-1 | +12,000 | $2.00 | $24k | 1,569,158 | Sep 10, 2025 |
| Sep 9, 2025 | FTax withholding Common Stock10b5-1 | -2,813 | $8.53 | $24k | 1,566,345 | Sep 10, 2025 |
| Sep 9, 2025 | MOption exercise Common Stock10b5-1 | +135,000 | $2.00 | $270k | 1,701,345 | Sep 10, 2025 |
| Sep 9, 2025 | FTax withholding Common Stock10b5-1 | -31,652 | $8.53 | $270k | 1,669,693 | Sep 10, 2025 |
| Sep 9, 2025 | MOption exercise Employee Stock Option (right to buy)derivative10b5-1 | -150,000 | $0.00 | $0 | 0 | Sep 10, 2025 |
| Sep 9, 2025 | MOption exercise Employee Stock Option (right to buy)derivative10b5-1 | -12,000 | $0.00 | $0 | 0 | Sep 10, 2025 |
| Sep 9, 2025 | MOption exercise Employee Stock Option (right to buy)derivative10b5-1 | -135,000 | $0.00 | $0 | 0 | Sep 10, 2025 |
Related signals
Other insiders at ASP Isotopes Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 44Moderate | ASPIbuy ASP Isotopes Inc. | Robert John Andrew Ryan director | $40k 15,000 shares | +2% | |
| 33Weak | ASPIbuy ASP Isotopes Inc. | Robert John Andrew Ryan director | $22k 8,000 shares | +1% | |
| 21Weak | ASP Isotopes Inc. | Robert Ainscow COO | $36k 8,438 shares | -0% | |
| 45Moderate | ASP Isotopes Inc. | Paul Elliot Mann Chairman and CEO | $999k 251,275 shares | -3% | |
| 25Weak | ASP Isotopes Inc. | Robert Ainscow COO | $98k 25,000 shares | -1% | |
| 39Weak | ASP Isotopes Inc. | Donald George Ainscow EVP, Gen Counsel, Secretary | $92k 23,678 shares | -3% | |
| 15Weak | ASP Isotopes Inc. | Robert Ainscow COO | $59k 8,438 shares | -0% | |
| 38Weak | ASP Isotopes Inc. | Paul Elliot Mann Chairman and CEO | $2.0M 251,275 shares | -3% | |
| 17Weak | ASP Isotopes Inc. | Duncan Moore director | $61k 11,642 shares | -1% | |
| 28Weak | ASP Isotopes Inc. | Heather Kiessling Chief Financial Officer | $127k 23,124 shares | -3% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.