Martin I. Cole is Director at WESTERN DIGITAL CORP (WDC). They have made 3 open-market trades across 2 companies since 2011, most recently 2026-07-28.
CIK 0001302874
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.
2 open-market purchases totalling $757K since 2017, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ACN | 59,785 | $13.7M |
| WDC | 21,433 | $7.1M |
| CLDR | 381,308 | $6.1M |
| WU | 120,018 | $741K |
| PrivateUnlisted | 36,417 | — |
| Total | $27.7M |
Shares reported on the most recent Form 4, priced at the 2026-07-29 close. 1 holding could not be priced and is excluded from the total.
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 |
|---|---|---|---|---|---|---|---|---|
| WDC | SELL · 10b5-1 | 2026-07-28 | 2026-07-29 | $462.77 | $89K | -14.2% | -10.0% | — |
| WDC | SELL · 10b5-1 | 2026-07-28 | 2026-07-29 | $448.66 | $1.7M | -14.2% | -10.0% | — |
| WDC | SELL · 10b5-1 | 2026-06-09 | 2026-06-11 | $536.01 | $386K | +20.1% | +3.6% | -10.1% |
| WDC | SELL · 10b5-1 | 2026-06-09 | 2026-06-11 | $511.16 | $1.7M | +20.1% | +3.6% | -10.1% |
| WDC | SELL | 2026-03-02 | 2026-03-03 | $271.67 | $1.6M | +5.9% | +14.8% | +112.6% |
| WDC | SELL · 10b5-1 | 2025-12-01 | 2025-12-03 | $162.99 | $1.6M | +11.1% | +21.2% | +61.8% |
| WDC | SELL · 10b5-1 | 2025-11-05 | 2025-11-06 | $161.45 | $3.2M | -4.3% | +6.3% | +68.6% |
| CLDR | BUY | 2017-10-30 | 2017-11-01 | $15.25 | $305K | +0.8% | +4.3% | +20.9% |
| CLDR | BUY | 2017-10-25 | 2017-10-27 | $15.07 | $452K | +3.2% | +8.6% | +23.1% |
| ACN | SELL · 10b5-1 | 2014-07-01 | 2014-07-03 | $81.40 | $2.7M | -3.3% | -0.8% | -0.8% |
| ACN | SELL · 10b5-1 | 2014-04-01 | 2014-04-02 | $79.30 | $2.6M | -3.3% | -0.8% | -0.8% |
| ACN | SELL · 10b5-1 | 2013-12-24 | 2013-12-26 | $81.07 | $2.7M | -3.3% | -0.8% | -0.8% |
| ACN | SELL · 10b5-1 | 2012-10-02 | 2012-10-04 | $69.84 | $2.3M | -3.3% | -0.8% | -0.8% |
| ACN | SELL · 10b5-1 | 2012-07-03 | 2012-07-06 | $60.83 | $2.0M | -3.3% | -0.8% | -0.8% |
| ACN | SELL · 10b5-1 | 2012-03-27 | 2012-03-28 | $65.24 | $2.2M | -3.3% | -0.8% | -0.8% |
| PrivateACCENTURE SCA | SELL · 10b5-1 | 2011-03-30 | 2011-03-31 | $54.50 | $2.0M | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.