List of insiders holdings for ASP Isotopes Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Mann Paul Elliot Chairman and CEO | 2026-09-04 21:30:22 | 9,328,570 0 | 9,328,570 | Form 4 |
| 2 | AK Jensen Investment Management Ltd 10% Owner | 2025-11-14 09:03:57 | 4,955,261 0 | 4,955,261 | Form 13G |
| 3 | Vasnetsov Sergey Director | 2023-03-08 16:05:51 | 0 3,838,607 | 3,838,607 | Form 4 |
| 4 | Strydom Hendrik Director 10% Owner | 2022-11-16 12:44:48 | 0 3,797,423 | 3,797,423 | Form 4 |
| 5 | Ronander Einar Chief Scientific Adviser 10% Owner | 2022-11-14 16:43:47 | 0 3,597,424 | 3,597,424 | Form 3 |
| 6 | Ainscow Robert COO | 2026-10-16 21:57:56 | 2,225,941 0 | 2,225,941 | Form 4 |
| 7 | Kiessling Heather Chief Financial Officer | 2026-10-21 21:45:10 | 1,504,422 0 | 1,504,422 | Form 4 |
| 8 | Donfeld Joshua Jay Director | 2023-10-30 21:50:12 | 1,104,167 0 | 1,104,167 | Form 4 |
| 9 | Moore Duncan Director | 2026-04-17 21:54:03 | 1,044,928 0 | 1,044,928 | Form 4 |
| 10 | Ainscow Donald George EVP, Gen Counsel, Secretary | 2026-09-04 21:33:05 | 776,322 0 | 776,322 | Form 4 |
| 11 | Ryan Robert John Andrew Director | 2026-10-01 17:52:58 | 675,222 0 | 675,222 | Form 4 |
| 12 | Wider Todd Director | 2026-07-01 21:45:38 | 672,247 0 | 672,247 | Form 4 |
| 13 | Gorley Michael Director | 2026-07-01 21:45:31 | 87,908 0 | 87,908 | Form 4 |
| 14 | Hunter Ralph L. JR Director | 2025-12-22 21:01:05 | 47,018 0 | 47,018 | Form 4 |