Gene M. Zamiska is VP at WESTERN DIGITAL CORP (WDC). They have made 7 open-market trades across 2 companies since 2010, most recently 2025-08-28.
CIK 0001456385
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 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WDC | SELL · 10b5-1 | 2025-08-28 | 2025-08-28 | $80.90 | $29K | +16.5% | +43.1% | +93.4% |
| WDC | SELL · 10b5-1 | 2025-08-26 | 2025-08-27 | $79.10 | $129K | +16.9% | +32.1% | +92.1% |
| WDC | SELL · 10b5-1 | 2025-08-21 | 2025-08-25 | $75.35 | $752K | +16.4% | +38.7% | +90.8% |
| WDC | SELL · 10b5-1 | 2025-06-17 | 2025-06-17 | $58.01 | $14K | +9.0% | +14.2% | +74.5% |
| WDC | SELL · 10b5-1 | 2025-06-05 | 2025-06-06 | $54.88 | $190K | +4.7% | +15.4% | +60.1% |
| WDC | SELL · 10b5-1 | 2025-03-12 | 2025-03-12 | $43.37 | $20K | +4.1% | -19.2% | +31.4% |
| WDC | SELL · 10b5-1 | 2025-03-07 | 2025-03-10 | $41.36 | $137K | +10.2% | -10.1% | +41.1% |
| WDC | SELL · 10b5-1 | 2024-11-29 | 2024-12-02 | $72.63 | $23K | -9.7% | -15.4% | -35.7% |
| WDC | SELL · 10b5-1 | 2024-11-26 | 2024-11-26 | $69.99 | $46K | -3.1% | -15.5% | -32.9% |
| WDC | SELL · 10b5-1 | 2024-11-21 | 2024-11-22 | $64.47 | $24K | +7.5% | -8.3% | +6.2% |
| WDC | SELL | 2024-10-28 | 2024-10-28 | $69.94 | $279K | +0.8% | +2.3% | -7.8% |
| WDC | SELL · 10b5-1 | 2024-09-04 | 2024-09-04 | $61.96 | $269K | +2.7% | +6.3% | +14.9% |
| WDC | SELL · 10b5-1 | 2024-08-29 | 2024-08-30 | $63.32 | $20K | -2.0% | +5.8% | +13.1% |
| WDC | SELL · 10b5-1 | 2024-08-27 | 2024-08-27 | $61.48 | $178K | +0.6% | +13.3% | +11.6% |
| WDC | SELL · 10b5-1 | 2024-08-21 | 2024-08-22 | $64.89 | $27K | -2.0% | +3.2% | -0.6% |
| WDC | SELL · 10b5-1 | 2024-06-17 | 2024-06-18 | $78.00 | $17K | -5.0% | -12.6% | -20.2% |
| WDC | SELL · 10b5-1 | 2024-05-21 | 2024-05-22 | $71.88 | $30K | -2.3% | +0.1% | -14.9% |
| WDC | SELL · 10b5-1 | 2024-04-08 | 2024-04-09 | $75.00 | $33K | -7.7% | +0.7% | +9.7% |
| WDC | SELL · 10b5-1 | 2024-03-01 | 2024-03-05 | $61.31 | $660K | -7.9% | +8.6% | +15.5% |
| WDC | SELL · 10b5-1 | 2023-09-06 | 2023-09-07 | $45.42 | $197K | +1.2% | +4.6% | +7.9% |
| WDC | SELL | 2022-09-07 | 2022-09-08 | $40.90 | $177K | -17.1% | -19.2% | -20.4% |
| WDC | SELL | 2022-05-04 | 2022-05-06 | $63.00 | $301K | +1.8% | +2.9% | -14.0% |
| WDC | SELL | 2021-11-02 | 2021-11-03 | $55.00 | $143K | +5.3% | +2.7% | -6.1% |
| JNPR | SELL | 2011-02-10 | 2011-02-11 | $42.57 | $54K | -5.6% | +0.8% | +0.8% |
| JNPR | SELL | 2010-11-29 | 2010-12-01 | $33.97 | $386K | -5.6% | +0.8% | +0.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.