Stephen D. Milligan is CEO at WESTERN DIGITAL CORP (WDC). They have made 15 open-market trades across 1 company since 2006, most recently 2026-05-21.
CIK 0001277246
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.
1 open-market purchase totalling $1.0M since 2016, against 14 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WDC | SELL | 2020-01-07 | 2020-01-09 | $68.32 | $1.6M | -0.4% | -1.3% | -34.2% |
| WDC | SELL | 2018-05-14 | 2018-05-16 | $80.94 | $2.7M | -0.3% | -7.1% | -25.1% |
| WDC | SELL | 2018-03-09 | 2018-03-13 | $100.12 | $10.7M | -10.7% | -12.5% | -19.8% |
| WDC | SELL | 2018-03-07 | 2018-03-08 | $94.49 | $4.4M | +5.9% | -9.5% | -13.5% |
| WDC | SELL | 2018-02-05 | 2018-02-05 | $84.09 | $2.5M | +4.9% | +18.2% | -2.6% |
| WDC | SELL | 2018-01-29 | 2018-01-31 | $88.12 | $16.0M | -5.8% | +0.9% | -8.7% |
| WDC | SELL | 2017-01-24 | 2017-01-26 | $77.88 | $7.5M | +0.2% | -3.5% | +7.3% |
| WDC | SELL · 10b5-1 | 2016-12-01 | 2016-12-05 | $65.00 | $4K | +9.4% | +13.6% | +23.7% |
| WDC | BUY | 2016-05-31 | 2016-05-31 | $45.53 | $1.0M | -0.2% | +0.7% | +0.3% |
| WDC | SELL · 10b5-1 | 2015-11-02 | 2015-11-04 | $66.33 | $414K | -15.7% | +1.8% | -21.0% |
| WDC | SELL · 10b5-1 | 2015-09-25 | 2015-09-29 | $71.29 | $163K | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2015-09-21 | 2015-09-22 | $76.90 | $593K | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2015-09-11 | 2015-09-15 | $80.53 | $1.2M | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2015-08-03 | 2015-08-05 | $86.13 | $537K | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2015-06-26 | 2015-06-30 | $85.11 | $195K | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2015-06-19 | 2015-06-23 | $91.56 | $1.3M | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2015-05-26 | 2015-05-27 | $93.53 | $635K | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2015-03-19 | 2015-03-23 | $99.52 | $3.2M | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2015-02-17 | 2015-02-17 | $106.12 | $601K | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2014-12-31 | 2015-01-05 | $111.86 | $1.8M | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2014-12-19 | 2014-12-23 | $113.69 | $1.6M | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2014-11-18 | 2014-11-18 | $100.00 | $566K | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2014-09-29 | 2014-10-01 | $95.88 | $1.5M | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2014-09-19 | 2014-09-22 | $99.09 | $1.4M | -15.7% | +1.8% | +1.8% |
| WDC | SELL · 10b5-1 | 2014-08-14 | 2014-08-18 | $100.06 | $2.3M | -15.7% | +1.8% | +1.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.