Transaction · 0001266824-26-000039

Tregillis Cynthia L

Tregillis Cynthia L, CLO, CS, reported an open-market or private sale at WESTERN DIGITAL CORP involving 8547.000000 shares for an estimated $2300985.73. Reported holdings after the transaction were 121682.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCLO, CS
WDCWESTERN DIGITAL CORP
Filing timeMar 05
Trade dateMar 04, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$259.02
Pre-filing
1mo ago +4.3%1w ago +12.3%1d ago -3.2%
Returns since
7d +0.8%30d +13.9%90d +129.4%180d +71.1%1y +71.1%

WDC price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
WDC since 2026-03-05Filed 182 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001266824-26-000039
Common Stock
Transaction date
Mar 04, 2026
Filed Mar 05, 2026, 12:00 AM · 1d delay
Shares
8.54k sh
$26.9k per share
Estimated value
-$230M
Computed from shares × price
Holdings after
121k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling Direct Ownership Large Sale Repeat Seller 10b5-1 Detected
0score
Filing-only score

0

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.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Legal Officer & Corp Sec

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    The dividend equivalent rights were converted into, and paid in the form of, shares of the Issuer's common stock on a one-for-one basis in connection with the vesting of restricted stock units to whic…

  2. F2

    Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).

  3. F3

    The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 23, 2025.

  4. F4

    Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $269.17 to a high of $269.2201. The Reporting Person undertakes to…

Original filing · 0001266824-26-000039
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Same reporting owner
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