Kiessling Heather
SEC CIK 2026548 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| ASPI | ASP Isotopes Inc. | CFO | 1.53M | — | $735.9K | 6 | 2024-07-01 | 2026-07-01 |
Most active insiders at ASPI, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Mann Paul Elliot | Executive Off, Dir | — | $4.19M |
| 2 | Ainscow Robert | COO, Interim CEO | — | $1.48M |
| 3 | Gorley Michael | Dir | — | $812.1K |
| 4 | Kiessling Heather | CFO | — | $735.9K |
| 5 | Ainscow Donald George | EVP, Gen Counsel, Sec | — | $706.1K |
| 6 | Wider Todd | Dir | — | $618.5K |
| 7 | Moore Duncan | Dir | — | $60.6K |
| 8 | Hunter Ralph L. JR | Dir | — | — |
| 9 | Ryan Robert John Andrew | Dir | — | — |
Transactions 6
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-07-02 21:45 | 2026-07-01 | ASPI | ASP Isotopes Inc. | Kiessling Heather | CFO | S - Sale | $6.28 | -23.1K | 1.53M | -1% | -$145.2K |
| 2026-06-03 21:45 | 2026-05-28 | ASPI | ASP Isotopes Inc. | Kiessling Heather | CFO | A - Grant | — | +840.0K | 1.55M | +118% | — | |
| T | 2026-04-17 21:54 | 2026-04-15 | ASPI | ASP Isotopes Inc. | Kiessling Heather | CFO | S - Sale | $5.48 | -23.1K | 709.4K | -3% | -$126.7K |
| 2025-12-29 | 2025-12-18 | ASPI | ASP Isotopes Inc. | Kiessling Heather | CFO | S - Sale | $5.80 | -80.0K | 732.5K | -10% | -$464.0K | |
| 2025-04-15 | 2025-04-14 | ASPI | ASP Isotopes Inc. | Kiessling Heather | CFO | A - Grant | — | +400.0K | 812.5K | +97% | — | |
| 2024-07-01 | 2024-07-01 | ASPI | ASP Isotopes Inc. | Kiessling Heather | CFO | A - Grant | — | +400.0K | 412.5K | +3,200% | — |
Purchase Sale Sale after option exercise All abbreviations