William Earl Cooper is CFO at EVERSPIN TECHNOLOGIES INC. (MRAM). They have made 8 open-market trades across 1 company since 2026, most recently 2026-10-02.
CIK 0002051031
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 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MRAM | 154,626 | $2.0M |
Shares reported on the most recent Form 4, priced at the 2026-10-05 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 |
|---|---|---|---|---|---|---|---|---|
| MRAM | SELL | 2026-10-02 | 2026-10-05 | $19.08 | $59K | -23.3% | — | — |
| MRAM | SELL | 2026-07-06 | 2026-07-08 | $19.65 | $36K | -20.2% | -8.1% | -1.9% |
| MRAM | SELL | 2026-07-01 | 2026-07-06 | $22.34 | $35K | -21.0% | -13.0% | -1.8% |
| MRAM | SELL | 2026-05-20 | 2026-05-21 | $29.13 | $291K | -11.3% | -20.8% | -45.8% |
| MRAM | SELL | 2026-05-06 | 2026-05-07 | $21.75 | $239K | +43.5% | +9.3% | -27.2% |
| MRAM | SELL | 2026-04-02 | 2026-07-08 | $8.80 | $14K | -20.2% | -8.1% | -1.9% |
| MRAM | SELL | 2026-04-01 | 2026-04-02 | $9.20 | $14K | +24.3% | +97.6% | +135.0% |
| MRAM | SELL | 2026-01-07 | 2026-01-08 | $12.06 | $82K | +35.1% | -4.9% | -18.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.