ウエスタンデジタル株式会社
US ˙ NasdaqGS ˙ US9581021055

SecurityWDC / Western Digital Corporation
InsiderVidyadhara K Gubbi
This page shows the track record and history of Gubbi Vidyadhara K insider trades in Western Digital Corporation. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Vidyadhara K Gubbi in WDC / Western Digital Corporation. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

WDC / Western Digital Corporation Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Vidyadhara K Gubbi in WDC / Western Digital Corporation. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
2026-06-01 2,475 556.2400 2,475 556.2400 1,376,694 4 511.7200 -110,187 -8.00
2026-05-04 4,674 443.1850 4,674 443.1850 2,071,447
2026-03-06 8,518 255.3250 8,518 255.3250 2,174,858
2026-03-04 2,973 269.5700 2,973 269.5700 801,432
2026-03-04 7,175 270.6172 7,175 270.6172 1,941,678
2025-12-05 3,822 167.6138 3,822 167.6138 640,620
2025-12-05 5,121 168.5400 5,121 168.5400 863,093
2025-12-04 13,877 159.9416 13,877 159.9416 2,219,510
2025-09-04 11,343 90.2902 11,343 90.2902 1,024,162
2025-08-13 5,597 76.2600 5,597 76.2600 426,827
2025-08-11 3,947 74.8750 3,947 74.8750 295,532

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

WDC / Western Digital Corporation Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2026-06-05 2026-06-03 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 594.1100 -1,764 -1,048 83,403
2026-06-05 2026-06-03 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 13 85,167
2026-06-02 2026-06-01 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 556.2400 -2,475 -1,377 85,154
2026-05-27 2026-05-25 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 484.2800 -1,143 -554 87,629
2026-05-27 2026-05-25 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 8 88,772
2026-05-22 2026-05-21 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 486.4600 -693 -337 88,764
2026-05-22 2026-05-21 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 5 89,457
2026-05-22 2026-05-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 459.6200 -593 -273 89,452
2026-05-22 2026-05-20 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 4 90,045
2026-05-05 2026-05-04 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 443.1850 -4,674 -2,071 90,041
2026-04-22 2026-04-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 374.1100 -4,595 -1,719 94,715
2026-04-22 2026-04-20 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 34 99,310
2026-03-10 2026-03-06 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 255.3250 -8,518 -2,175 99,276
2026-03-05 2026-03-04 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 270.6172 -7,175 -1,942 107,794
2026-03-05 2026-03-04 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 269.5700 -2,973 -801 114,969
2026-03-05 2026-03-03 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 250.6100 -7,054 -1,768 117,942
2026-03-05 2026-03-03 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 47 124,996
2026-02-27 2026-02-25 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 290.9500 -1,010 -294 124,949
2026-02-27 2026-02-25 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 7 125,959
2026-02-24 2026-02-21 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 285.5200 -483 -138 125,952
2026-02-24 2026-02-21 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 4 126,435
2026-02-24 2026-02-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 285.5200 -437 -125 126,431
2026-02-24 2026-02-20 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 4 126,868
2025-12-08 2025-12-05 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 168.5400 -5,121 -863 126,864
2025-12-08 2025-12-05 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 167.6138 -3,822 -641 131,985
2025-12-08 2025-12-04 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 159.9416 -13,877 -2,220 135,807
2025-11-26 2025-11-25 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 155.4100 -1,142 -177 149,181
2025-11-26 2025-11-25 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 6 150,323
2025-11-24 2025-11-21 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 139.1900 -693 -96 150,317
2025-11-24 2025-11-21 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 3 151,010
2025-11-24 2025-11-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 140.2300 -592 -83 151,007
2025-11-24 2025-11-20 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 3 151,599
2025-09-05 2025-09-04 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 90.2902 -11,343 -1,024 151,596
2025-08-28 2025-08-27 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 80.6700 -408 -33 162,939
2025-08-28 2025-08-27 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 1 163,347
2025-08-28 2025-08-26 4 Gubbi Vidyadhara K WDC Common Stock A - Award D 16,554 163,346
2025-08-27 2025-08-25 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 79.2200 -1,140 -90 146,792
2025-08-27 2025-08-25 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 3 147,932
2025-08-25 2025-08-21 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 74.6600 -2,773 -207 147,929
2025-08-25 2025-08-21 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 9 150,702
2025-08-21 2025-08-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 75.6400 -3,997 -302 150,693
2025-08-21 2025-08-20 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 11 154,690
2025-08-13 2025-08-13 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 76.2600 -5,597 -427 154,679
2025-08-13 2025-08-11 4 Gubbi Vidyadhara K WDC Common Stock S - Sale D 74.8750 -3,947 -296 160,276
2025-06-24 2025-06-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 59.2900 -8,218 -487 164,223
2025-06-24 2025-06-20 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 28 172,441
2025-06-23 2025-06-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 59.2900 -1,235 -73 172,413
2025-06-23 2025-06-20 4 Gubbi Vidyadhara K WDC Common Stock M - Exercise D 6 173,648
2025-05-28 2025-05-27 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 51.8200 -284 -15 173,642
2025-05-28 2025-05-25 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 50.1800 -795 -40 173,926
2025-05-22 2025-05-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 50.6300 -412 -21 174,721
2025-04-22 2025-04-20 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 36.5100 -2,129 -78 175,133
2025-03-10 2025-03-06 4 Gubbi Vidyadhara K WDC Common Stock F - Taxes D 41.4500 -1,492 -62 177,262
2025-03-05 2025-03-03 4 Gubbi Vidyadhara K WDC Common Stock A - Award D 42,544 178,754
2025-03-03 3 Gubbi Vidyadhara K WDC Common Stock D 136,210
P
非デリバティブまたはデリバティブ証券の公開市場または非公開購入
S
非デリバティブ証券またはデリバティブ証券の公開市場または非公開売却
A
会社からの有価証券の交付、授与その他の取得 (オプション等)
C
デリバティブの転換
D
有価証券の会社への売却または譲渡
F
会社から受領した有価証券の一部を使用した、行使価格または納税義務のお支払い
G
内部者によるまたは内部者に対する有価証券の贈与
K
株式スワップと類似のヘッジ取引
M
会社から受け取ったデリバティブ証券 (オプションなど) の行使または転換
V
フォーム4により任意に報告した取引
J
その他 (取引を説明する脚注を含む)