Asp Isotopes Inc.
A maker of isotope-enrichment technology, Asp Isotopes separates rare forms of elements used in nuclear medicine, quantum computing, and next-generation nuclear fuel (HALEU), and it also produces liquid helium and LNG in South Africa. Its name comes from its Aerodynamic Separation Process, a technology born from South Africa's former nuclear program and refined for decades by the company Klydon, which Asp Isotopes acquired after founding in 2021. A fun quirk: the same enrichment know-how once tied to weapons-grade work now fuels peaceful uses, from medical imaging to the helium that keeps magnets cool.
Granted 3.45M · Sold 900.2K
Granted 1.10M · Sold 196.3K
Granted 840.0K · Sold 103.1K
Granted 62.0K · Sold 86.6K
Granted 400.0K
Granted 158.0K · Sold 74.1K
Granted 36.5K
Granted 36.5K · Sold 64.0K
Granted 47.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Mann Paul ElliotChairman and CEO, Director · 14 transactions | +31% | 9.58M | 3.45M | — | 900.2K |
| Ainscow RobertCOO · 16 transactions | +60.7% | 2.28M | 1.10M | — | 196.3K |
| Kiessling HeatherChief Financial Officer · 3 transactions | +90.7% | 1.55M | 840.0K | — | 103.1K |
| Moore DuncanDirector · 4 transactions | -2.3% | 1.04M | 62.0K | — | 86.6K |
| Ainscow Donald GeorgeEVP, Gen Counsel, Secretary · 1 transaction | +80% | 900.0K | 400.0K | — | — |
| Wider ToddDirector · 5 transactions | +8.7% | 772.2K | 158.0K | — | 74.1K |
| Ryan Robert John AndrewDirector · 1 transaction | +6.1% | 652.2K | 36.5K | — | — |
| Gorley MichaelDirector · 2 transactions | -18.9% | 117.9K | 36.5K | — | 64.0K |
| Hunter Ralph L. JRDirector · 2 transactions | — | 47.0K | 47.0K | — | — |
Select a row to see that insider’s individual transactions.
Net open-market activity over the last year: -1.42M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.