Zamiska Gene M.
SEC CIK 1456385 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| WDC | Western Digital | SVP, Princ. Acctg Off | 27.4K | — | $2.63M | 71 | 2021-08-12 | 2025-08-28 |
Most active insiders at WDC, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Tan Irving | CEO, Dir | — | $25.26M |
| 2 | Gubbi Vidyadhara K | Chief of Gbl Ops | — | $12.91M |
| 3 | MASSENGILL MATTHEW E | Dir | — | $9.62M |
| 4 | Cole Martin I | Dir | — | $8.08M |
| 5 | Davis Brian Scott | Chief Sales, Mrktng Off | — | $7.80M |
| 6 | Tregillis Cynthia L | CLO, Corp Sec | — | $7.50M |
| 7 | STREETER STEPHANIE A | Dir | — | $2.52M |
| 8 | Alexy Kimberly | Dir | — | $592.4K |
| 9 | KIDDOO BRUCE E | Dir | — | $396.4K |
| 10 | Oulman Roxanne | Dir | — | $278.0K |
Zamiska Gene M. made no open-market trades at WDC in the last 12 months.
Transactions 71
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-08-28 | 2025-08-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $80.67 | -345 | 27.8K | -1% | -$27.8K |
| D | 2025-08-28 | 2025-08-28 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale+OE | $80.90 | -353 | 27.4K | -1% | -$28.6K |
| D | 2025-08-28 | 2025-08-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | M - OptEx | $0.00 | +1 | 28.1K | +0.0% | $0 |
| D | 2025-08-27 | 2025-08-25 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | M - OptEx | $0.00 | +2 | 29.7K | +0.0% | $0 |
| D | 2025-08-27 | 2025-08-26 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale+OE | $79.10 | -814 | 28.1K | -3% | -$64.4K |
| D | 2025-08-27 | 2025-08-25 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $79.22 | -798 | 28.9K | -3% | -$63.2K |
| D | 2025-08-25 | 2025-08-21 | WDC | Western Digital | Zamiska Gene M. | SVP, Gbl Accounting, Chief | M - OptEx | $0.00 | +6 | 36.5K | +0.0% | $0 |
| DM | 2025-08-25 | 2025-08-21+ | WDC | Western Digital | Zamiska Gene M. | SVP, Gbl Accounting, Chief | S - Sale+OE | $75.35 | -4,988 | 29.7K | -14% | -$375.8K |
| D | 2025-08-25 | 2025-08-21 | WDC | Western Digital | Zamiska Gene M. | SVP, Gbl Accounting, Chief | F - Tax | $74.66 | -1,797 | 34.7K | -5% | -$134.2K |
| D | 2025-08-21 | 2025-08-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $75.64 | -3,102 | 36.5K | -8% | -$234.6K |
| D | 2025-08-21 | 2025-08-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | M - OptEx | $0.00 | +9 | 39.6K | +0.0% | $0 |
| 2025-06-17 | 2025-06-14 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $55.70 | -240 | 39.8K | -0.6% | -$13.4K | |
| 2025-06-17 | 2025-06-17 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $58.01 | -245 | 39.6K | -0.6% | -$14.2K | |
| 2025-06-06 | 2025-06-05 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $54.88 | -1,729 | 40.1K | -4% | -$94.9K | |
| M | 2025-05-28 | 2025-05-25+ | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $50.68 | -1,142 | 41.8K | -3% | -$57.9K |
| 2025-05-22 | 2025-05-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $50.63 | -360 | 43.0K | -0.8% | -$18.2K | |
| 2025-03-12 | 2025-03-12 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $43.37 | -456 | 43.3K | -1% | -$19.8K | |
| 2025-03-10 | 2025-03-07 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $41.36 | -1,659 | 43.8K | -4% | -$68.6K | |
| 2025-03-10 | 2025-03-06 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $41.45 | -1,116 | 45.4K | -2% | -$46.3K | |
| 2025-03-03 | 2025-02-28 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | A - Grant | $0.00 | +5,327 | 46.6K | +13% | $0 | |
| 2024-12-02 | 2024-11-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $71.50 | -167 | 28.7K | -0.6% | -$11.9K | |
| 2024-12-02 | 2024-11-29 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $72.63 | -313 | 28.4K | -1% | -$22.7K | |
| 2024-11-26 | 2024-11-26 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $69.99 | -658 | 28.9K | -2% | -$46.1K | |
| 2024-11-26 | 2024-11-25 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $69.43 | -450 | 29.5K | -2% | -$31.2K | |
| 2024-11-22 | 2024-11-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $63.84 | -261 | 30.3K | -0.9% | -$16.7K | |
| 2024-11-22 | 2024-11-21 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $64.47 | -376 | 30.0K | -1% | -$24.2K | |
| 2024-10-28 | 2024-10-28 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $69.94 | -1,993 | 30.6K | -6% | -$139.4K | |
| 2024-09-04 | 2024-09-03 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $63.06 | -1,145 | 34.8K | -3% | -$72.2K | |
| 2024-09-04 | 2024-09-04 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $61.96 | -2,169 | 32.6K | -6% | -$134.4K | |
| 2024-08-30 | 2024-08-29 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $63.32 | -315 | 35.9K | -0.9% | -$19.9K | |
| 2024-08-27 | 2024-08-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $61.48 | -2,900 | 37.4K | -7% | -$178.3K | |
| M | 2024-08-27 | 2024-08-25+ | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $63.69 | -2,750 | 40.3K | -6% | -$175.1K |
| M | 2024-08-22 | 2024-08-21 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | A - Grant | $0.00 | +13.0K | 38.8K | +50% | $0 |
| 2024-08-22 | 2024-08-21 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $64.89 | -417 | 28.9K | -1% | -$27.1K | |
| 2024-08-22 | 2024-08-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $64.42 | -220 | 29.3K | -0.7% | -$14.2K | |
| 2024-06-18 | 2024-06-17 | WDC | Western Digital | Zamiska Gene M. | SVP, Gbl Accounting, Chief | S - Sale | $78.00 | -219 | 29.5K | -0.7% | -$17.1K | |
| 2024-06-17 | 2024-06-14 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $78.12 | -115 | 29.7K | -0.4% | -$8,984 | |
| 2024-05-30 | 2024-05-29 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $75.39 | -315 | 29.8K | -1% | -$23.7K | |
| 2024-05-28 | 2024-05-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $74.81 | -165 | 30.2K | -0.5% | -$12.3K | |
| 2024-05-22 | 2024-05-21 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $71.88 | -416 | 30.3K | -1% | -$29.9K | |
| 2024-05-22 | 2024-05-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $73.05 | -221 | 30.7K | -0.7% | -$16.1K | |
| 2024-04-09 | 2024-04-08 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $75.00 | -443 | 31.0K | -1% | -$33.2K | |
| M | 2024-03-05 | 2024-03-01 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $61.31 | -10.8K | 34.5K | -24% | -$660.2K |
| 2024-02-29 | 2024-02-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $57.48 | -196 | 42.2K | -0.5% | -$11.3K | |
| 2024-02-22 | 2024-02-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $54.13 | -261 | 42.4K | -0.6% | -$14.1K | |
| 2023-11-28 | 2023-11-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $47.21 | -165 | 42.6K | -0.4% | -$7,790 | |
| 2023-11-21 | 2023-11-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $47.35 | -220 | 42.8K | -0.5% | -$10.4K | |
| 2023-09-07 | 2023-09-06 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $45.42 | -2,169 | 43.0K | -5% | -$98.5K | |
| 2023-09-06 | 2023-09-04 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $45.96 | -1,146 | 45.2K | -2% | -$52.7K | |
| 2023-08-29 | 2023-08-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $39.49 | -165 | 46.3K | -0.4% | -$6,516 | |
| 2023-08-29 | 2023-08-25 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | A - Grant | $0.00 | +17.7K | 46.5K | +62% | $0 | |
| 2023-08-22 | 2023-08-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $39.74 | -881 | 28.8K | -3% | -$35.0K | |
| D | 2023-08-14 | 2023-08-12 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $41.88 | -1,376 | 29.6K | -4% | -$57.6K |
| D | 2023-08-14 | 2023-08-12 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | M - OptEx | $0.00 | +107 | 31.0K | +0.3% | $0 |
| 2023-06-16 | 2023-06-14 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $40.46 | -115 | 30.9K | -0.4% | -$4,653 | |
| 2023-05-30 | 2023-05-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $39.71 | -162 | 31.0K | -0.5% | -$6,433 | |
| 2023-03-01 | 2023-02-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $38.51 | -196 | 31.2K | -0.6% | -$7,548 | |
| 2022-11-29 | 2022-11-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $37.34 | -166 | 31.4K | -0.5% | -$6,198 | |
| 2022-09-08 | 2022-09-07 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $40.90 | -2,169 | 31.6K | -6% | -$88.7K | |
| 2022-09-06 | 2022-09-03 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $41.65 | -1,146 | 33.7K | -3% | -$47.7K | |
| 2022-08-30 | 2022-08-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $45.49 | -664 | 34.9K | -2% | -$30.2K | |
| 2022-08-23 | 2022-08-20 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | A - Grant | $0.00 | +10.2K | 35.5K | +40% | $0 | |
| D | 2022-08-15 | 2022-08-12 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $50.67 | -1,376 | 25.3K | -5% | -$69.7K |
| D | 2022-08-15 | 2022-08-12 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | M - OptEx | $0.00 | +107 | 26.7K | +0.4% | $0 |
| 2022-06-15 | 2022-06-14 | WDC | Western Digital | Zamiska Gene M. | SVP, Gbl Accounting, Chief | F - Tax | $49.24 | -112 | 26.6K | -0.4% | -$5,515 | |
| 2022-05-06 | 2022-05-04 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $63.00 | -4,776 | 26.7K | -15% | -$300.9K | |
| 2021-11-03 | 2021-11-02 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | S - Sale | $55.00 | -2,607 | 31.5K | -8% | -$143.4K | |
| 2021-09-07 | 2021-09-03 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $61.41 | -1,146 | 34.1K | -3% | -$70.4K | |
| 2021-08-31 | 2021-08-27 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | A - Grant | $0.00 | +7,685 | 35.2K | +28% | $0 | |
| D | 2021-08-13 | 2021-08-12 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | F - Tax | $62.38 | -1,377 | 27.6K | -5% | -$85.9K |
| D | 2021-08-13 | 2021-08-12 | WDC | Western Digital | Zamiska Gene M. | SVP, Princ. Acctg Off | M - OptEx | $0.00 | +107 | 28.9K | +0.4% | $0 |
Purchase Sale Sale after option exercise All abbreviations