Matthew E. Massengill serves as Director of WESTERN DIGITAL CORP (WDC). Massengill has reported 7 insider filings with the SEC since 2024. The most recent filing was in June 2026.
Every role Matthew E. Massengill has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
WESTERN DIGITAL CORP (WDC)1 filingUpdated Aug 30, 2026
Matthew E. Massengill is Director of WESTERN DIGITAL CORP (WDC). 7 SEC Form 4 filings on record going back to 2024, most recently on 23 June 2026. Most recent open-market trade: sold $107K of WDC on 6 February 2026. Lifetime open-market sales: $9.62M.
Every recent SEC Form 4 transaction Matthew E. Massengill has reported, most recent first.
InsiderAlpha's records for Matthew E. Massengill go back to 2024: 7 primary Form 4 filings, an average of 2.3 per year. 11 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Insiders who reported open-market trades in the last 12 months at the companies Matthew E. Massengill files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Matthew E. Massengill is a corporate insider, tracked as Director of WESTERN DIGITAL CORP (WDC). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
1 primary Form 4 filing in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases and 11 open-market sales ($9.62M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial