Alistair N. Sporck is VP at AEHR TEST SYSTEMS (AEHR). They have made 12 open-market trades across 1 company since 2023, most recently 2026-10-12.
CIK 0001939261
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AEHR | 21,853 | $1.3M |
Shares reported on the most recent Form 4, priced at the 2026-10-13 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AEHR | SELL | 2026-08-10 | 2026-08-11 | $108.49 | $108K | -17.8% | -24.1% | — |
| AEHR | SELL | 2026-08-04 | 2026-08-06 | $100.96 | $202K | +20.4% | -11.3% | — |
| AEHR | SELL | 2026-04-22 | 2026-04-22 | $93.50 | $187K | -9.9% | -0.1% | +4.1% |
| AEHR | SELL | 2026-04-16 | 2026-04-17 | $81.88 | $164K | -3.0% | -0.7% | -0.2% |
| AEHR | SELL | 2026-04-10 | 2026-04-14 | $67.37 | $135K | +31.2% | +45.4% | -6.9% |
| AEHR | SELL | 2026-02-09 | 2026-02-10 | $27.57 | $83K | +7.9% | +18.4% | +228.8% |
| AEHR | SELL | 2025-07-15 | 2025-07-18 | $14.13 | $42K | +18.7% | +29.0% | +77.7% |
| AEHR | SELL | 2024-07-19 | 2024-07-22 | $18.82 | $24K | -8.9% | -20.3% | -13.4% |
| AEHR | SELL | 2023-10-16 | 2023-10-17 | $37.65 | $36K | -17.1% | -29.3% | -51.9% |
| AEHR | SELL | 2023-05-05 | 2023-05-09 | $27.08 | $26K | +15.6% | +44.3% | +68.2% |
| AEHR | SELL | 2023-01-23 | 2023-01-25 | $34.52 | $16K | -3.0% | -14.1% | -34.6% |
| AEHR | SELL | 2023-01-17 | 2023-01-19 | $28.79 | $14K | +23.6% | +15.3% | +1.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.