MASSENGILL MATTHEW E 4
4 · WESTERN DIGITAL CORP · Filed Feb 6, 2026
Research Summary
AI-generated summary of this filing
Western Digital (WDC) Director Matthew Massengill Sells 36,926 Shares
What Happened
- Matthew E. Massengill, a director of Western Digital Corporation (WDC), sold a total of 36,926 shares on February 5, 2026 in multiple open‑market transactions. The individual trades ranged from 400 to 7,000 shares at prices between $256.12 and $268.53 per share, generating total proceeds of approximately $9,616,466 (about $9.62M). The weighted average sale price across these transactions was roughly $260.43 per share.
- These were sales (not purchases), and they were carried out pursuant to a pre‑existing Rule 10b5‑1 trading plan (adopted November 6, 2025), which typically reflects pre‑scheduled transactions rather than contemporaneous discretionary selling.
Key Details
- Transaction date: February 5, 2026 (Form 4 filed Feb 6, 2026 — timely).
- Total shares sold: 36,926; total proceeds: ~$9.62 million; approximate weighted average price: ~$260.43/share.
- Price range reported across grouped trades: approximately $256.12 (low) to $268.53 (high); footnotes provide per‑group weighted averages and per‑group price ranges.
- Shares owned after the transactions: not specified in the information provided in this summary (not disclosed in the transaction details supplied).
- Notable footnote: F1 — sales were effected pursuant to a Rule 10b5‑1 trading plan adopted 11/06/2025. Several other footnotes (F2–F12) give weighted-average prices and specific intra-group price ranges and state the filer will provide further breakdowns if requested.
Context
- Because these sales were made under a 10b5‑1 plan, they were likely pre‑arranged and do not necessarily indicate the director’s current view of the company; they are routine disclosures of insider sales. Purchases tend to carry more immediate informational weight for investors.
Insider Transaction Report
Form 4
MASSENGILL MATTHEW E
Director
Transactions
- Sale
Common Stock
[F1][F2]2026-02-05$256.63/sh−2,600$667,241→ 34,326 total(indirect: By Trust) - Sale
Common Stock
[F1][F3]2026-02-05$257.69/sh−4,411$1,136,649→ 29,915 total(indirect: By Trust) - Sale
Common Stock
[F1][F4]2026-02-05$258.67/sh−7,000$1,810,703→ 22,915 total(indirect: By Trust) - Sale
Common Stock
[F1][F5]2026-02-05$259.59/sh−4,915$1,275,896→ 18,000 total(indirect: By Trust) - Sale
Common Stock
[F1][F6]2026-02-05$260.57/sh−5,987$1,560,037→ 12,013 total(indirect: By Trust) - Sale
Common Stock
[F1][F7]2026-02-05$261.71/sh−3,597$941,363→ 8,416 total(indirect: By Trust) - Sale
Common Stock
[F1][F8]2026-02-05$262.77/sh−2,300$604,366→ 6,116 total(indirect: By Trust) - Sale
Common Stock
[F1][F9]2026-02-05$264.01/sh−2,600$686,429→ 3,516 total(indirect: By Trust) - Sale
Common Stock
[F1][F10]2026-02-05$264.99/sh−2,200$582,980→ 1,316 total(indirect: By Trust) - Sale
Common Stock
[F1][F11]2026-02-05$265.92/sh−916$243,580→ 400 total(indirect: By Trust) - Sale
Common Stock
[F1][F12]2026-02-05$268.06/sh−400$107,222→ 0 total(indirect: By Trust)
Holdings
- 28,897
Common Stock
- 500(indirect: By IRA)
Common Stock
Footnotes (12)
- [F1]The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 6, 2025.
- [F10]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $264.54 to a high of $265.51. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F11]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $265.57 to a high of $266.27. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F12]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $267.58 to a high of $268.53. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F2]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $256.12 to a high of $257.09. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F3]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $257.14 to a high of $258.13. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F4]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $258.14 to a high of $259.13. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F5]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $259.15 to a high of $260.12. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F6]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $260.15 to a high of $261.05. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F7]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $261.19 to a high of $262.18. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F8]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $262.21 to a high of $263.14. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
- [F9]Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $263.40 to a high of $264.38. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
Signature
By: /s/ Sandra Garcia Attorney-in-Fact For: Matthew E. Massengill|2026-02-06