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.
| Holder | Schedule | % of class | Shares | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 13G/APassive | 6.6% | 8.27M | Apr 27, 2026 |
| The Vanguard Group | 13G/APassive | 0% | 0 | Mar 26, 2026 |
| Mann Paul Elliot | 13G/APassive | 7% | 7.76M | Feb 17, 2026 |
| BNP Paribas Asset Management UK Ltd | 13G/APassive | 0.9% | 944.3K | Feb 9, 2026 |
| Encompass Capital Advisors LLC | 13GPassive | 5.13% | 6.41M | Jan 23, 2026 |
| Todd J. Kantor | 13GPassive | 5.13% | 6.41M | Jan 23, 2026 |
| AK Jensen Investment Management Ltd | 13G/APassive | 5.4% | 4.96M | Nov 14, 2025 |
| AWM Investment Company, Inc. | 13G/APassive | 4.3% | 3.93M | Aug 14, 2025 |