Matthew E Massengill sold $9.6M of WDC
director at WESTERN DIGITAL CORP. 36,926 shares at an average of $260.43, traded Feb 5, 2026, filed Feb 6, 2026.
Score components
- +15RoleDirector
- +25Trade size$9.6M at market
- +20Share of holdings soldSold 100% of holdings
- +15Cluster4 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -13.2%, 3m +69.9%, 6m +53.8%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001266824-26-000008, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -2,600 | $256.63 | $667k | 34,326 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -4,411 | $257.69 | $1.1M | 29,915 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -7,000 | $258.67 | $1.8M | 22,915 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -4,915 | $259.59 | $1.3M | 18,000 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -5,987 | $260.57 | $1.6M | 12,013 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -3,597 | $261.71 | $941k | 8,416 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -2,300 | $262.77 | $604k | 6,116 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -2,600 | $264.01 | $686k | 3,516 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -2,200 | $264.99 | $583k | 1,316 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -916 | $265.92 | $244k | 400 | Feb 6, 2026 |
| Feb 5, 2026 | SOpen-market sale Common Stockindirect: By Family Trust10b5-1 | -400 | $268.06 | $107k | 0 | Feb 6, 2026 |
Related signals
Other insiders at WESTERN DIGITAL CORP and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 38Weak | WESTERN DIGITAL CORP | Vidyadhara K Gubbi Chief of Global Operations | $825k 1,795 shares | -2% | |
| 7Weak | WESTERN DIGITAL CORP | Cynthia L Tregillis Chief Legal Officer & Corp Sec | $195k 432 shares | -0% | |
| 60Notable | WESTERN DIGITAL CORP | Stephanie A Streeter director | $2.5M 5,600 shares | -14% | |
| 16Weak | WESTERN DIGITAL CORP | Cynthia L Tregillis Chief Legal Officer & Corp Sec | $696k 1,483 shares | -1% | |
| 11Weak | WESTERN DIGITAL CORP | Cynthia L Tregillis Chief Legal Officer & Corp Sec | $417k 919 shares | -1% | |
| 45Moderate | WESTERN DIGITAL CORP | Irving Tan Chief Executive Officer | $8.9M 20,000 shares | -3% | |
| 40Moderate | WESTERN DIGITAL CORP | Martin I Cole director | $1.7M 3,808 shares | -15% | |
| 19Weak | WESTERN DIGITAL CORP | Martin I Cole director | $89k 192 shares | -1% | |
| 5Weak | WESTERN DIGITAL CORP | Cynthia L Tregillis Chief Legal Officer & Corp Sec | $428k 808 shares | -1% | |
| 40Moderate | WESTERN DIGITAL CORP | Martin I Cole director | $1.7M 3,280 shares | -11% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.