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SEC EDGARAUG 281 min read$WDC

Tregillis Cynthia L sold $696K of WDC

Tregillis Cynthia L (Chief Legal Officer & Corp Sec) sold 1,483 shares of WESTERN DIGITAL CORP (WDC) at an average of $469.51 ($450.78–$478.36, $0.70M total) across 2 trades over 2026-08-26 to 2026-08-27 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Tregillis Cynthia L
Published Aug 28, 2026, 12:05 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 28, 2026, 12:33 AM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
About AlphAI AI DeskScoring methodologyReport an issue
AlphAI market briefInsider activity
Primary signal
$WDC
Bearish
medium confidence
Mentioned
$WDC
Relevance
4/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$WDCBearishLow
01

Why it matters

The disclosed sale is modest relative to Western Digital's market cap, likely causing limited price movement.

02

Market read

Routine insider sale with low trading relevance; may be noted by short‑term traders but unlikely to drive significant moves.

03

What to watch

Potential tax‑loss harvesting or pre‑planned 10b5‑1 execution; not indicative of operational issues.

Relevance 4/10Novelty 4/10Timing: filed today (Aug 27)

Background

Form 4 filings disclose insider trades; a 10b5‑1 plan indicates pre‑arranged execution.

Company-level read

Ticker impact

$WDCBearishMedium confidence
Context

Chief Legal Officer Cynthia Tregillis sold 1,483 shares for $696K via a 10b5‑1 plan, reducing her stake to 112,155 shares.

Expected impact

Potential short‑term dip of 0.5‑1% if market interprets as lack of confidence.

Evidence & confidence

Sale size is modest relative to market cap; insider is a legal officer, not a founder, so impact is limited.

Market effects

Sector

No broader sector impact; data‑storage sector unchanged.

Regional

U.S. market only; no regional ripple.

Global

Minimal global relevance.

Counterpoint

What could challenge this read

Sale could be routine portfolio rebalancing, not a signal of weakness.

Key entities

  • Company
    Western Digital Corp.

    Global data‑storage solutions provider.

  • Insider
    Cynthia L. Tregillis

    Chief Legal Officer & Corporate Secretary.

Read at source← All news

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

WDC insider trading history →

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