Transaction · 0001266824-26-000219

Cole Martin I

Cole Martin I, DIR, reported an open-market or private sale at WESTERN DIGITAL CORP involving 88.000000 shares for an estimated $35228.99. Reported holdings after the transaction were 17476.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SDIR
WDCWESTERN DIGITAL CORP
Trade date
Oct 29, 2026
Filing date
Oct 30, 2026
View on SEC Insider profile
Disclosed value-$35.2kShares × reported price
Shares traded88$400.33 per share
Holdings after17.4kDirect
% of reported position traded0.5%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 17,564 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

WDC price since this filing

Daily closing prices, with the filing date and available return windows
WDC · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +23.9%1w ago -3.3%1d ago +8.3%
Returns since7d30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001266824-26-000219
Common Stock
Transaction date
Oct 29, 2026
Filed Oct 30, 2026, 10:19 PM · 1d delay
Shares
88 sh
$400.33 per share
Estimated value
-$35.2k
Computed from shares × price
Holdings after
17,476 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership Repeat Seller 10b5-1 Detected
Filing-only score

0 points

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 1

    Filing reported within two business days of the transaction.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 5, 2026.

  2. F2

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $389.6074 to a high of $390.5492. The Reporting Person undertake…

  3. F3

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $390.8463 to a high of $391.8300. The Reporting Person undertake…

  4. F4

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $391.8473 to a high of $392.8400. The Reporting Person undertake…

  5. F5

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $392.8499 to a high of $393.7911. The Reporting Person undertake…

  6. F6

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $393.8700 to a high of $394.8682. The Reporting Person undertake…

  7. F7

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $394.8900 to a high of $395.8721. The Reporting Person undertake…

  8. F8

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $395.9300 to a high of $396.9100. The Reporting Person undertake…

  9. F9

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $396.9333 to a high of $397.9274. The Reporting Person undertake…

  10. F10

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $397.9343 to a high of $398.9000. The Reporting Person undertake…

  11. F11

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $398.9400 to a high of $399.9200. The Reporting Person undertake…

  12. F12

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $399.9563 to a high of $400.9500. The Reporting Person undertake…

  13. F13

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $401.0000 to a high of $401.8100. The Reporting Person undertake…

Original filing · 0001266824-26-000219
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