# Asp Isotopes (ASPI): value investors who own it | moatshark

1 value investor held Asp Isotopes in their Q3 2026 13F, led by Polen Capital Management. See who bought, sold and how ownership has changed by quarter.

## 13F holders

| Manager | Portfolio | Value | Change | Quarters held |
| --- | --- | --- | --- | --- |
| Polen Capital Management | 0.0% | $930k | Added +22% | 5 |

## Directors buying and selling (Form 4, last 12 months)

| Date | Who | Role | Bought or sold | Shares | Value |
| --- | --- | --- | --- | --- | --- |
| 2026-10-14 | Ainscow Robert | COO | Sold | 22500 | $48k |
| 2026-09-30 | Ryan Robert John Andrew | Director | Bought | 15000 | $40k |
| 2026-09-28 | Ryan Robert John Andrew | Director | Bought | 8000 | $22k |
| 2026-09-08 | Ainscow Robert | COO | Sold | 8438 | $36k |
| 2026-09-04 | Mann Paul Elliot | Chairman and CEO | Sold | 83759 | $343k |
| 2026-09-03 | Mann Paul Elliot | Chairman and CEO | Sold | 83758 | $328k |
| 2026-09-02 | Mann Paul Elliot | Chairman and CEO | Sold | 83758 | $327k |
| 2026-09-02 | Ainscow Robert | COO | Sold | 25000 | $98k |
| 2026-09-02 | Ainscow Donald George | EVP, Gen Counsel, Secretary | Sold | 23678 | $92k |

Source: SEC filings, via moatshark (https://www.moatshark.com/s/aspi). Values traded and returns are estimates. Not investment advice. Built 2026-10-21.