No actionable signal from this cluster. The dollar amounts are trivial for a company of WDC's size, and the CLO's sale follows a pattern of derivative exercises and tax withholding. Monitor for any material change in insider buying patterns or a sudden increase in C-suite open-market sales before drawing conclusions.
Price Chart
Executive Summary
Two WDC insiders — a director and the Chief Legal Officer — sold a total of $512K in open-market sales over two days. The dollar amount is negligible relative to WDC's $183B market cap (0.0003%), making this a routine, non-informational cluster. The CLO's sale follows a pattern of derivative exercises and tax-withholding transactions on May 25, suggesting the open-market sale is likely for tax or diversification purposes rather than a bearish signal.
Key Financial Metrics
Key Facts
- Director Bruce E. Kiddoo sold 750 shares at $528.52 on May 28, total $396K.
- CLO Cynthia L. Tregillis sold 214 shares at $539.63 on May 27, total $115K.
- Total open-market sales of $512K represent ~0.0003% of WDC's $183.1B market cap.
- Multiple C-suite executives (CEO, CLO, CSMO, COO) exercised derivatives and surrendered shares for tax withholding on May 25 — non-cash events with no economic signal.
- The CLO's open-market sale follows her derivative exercise and tax-withholding transactions, consistent with routine post-vesting portfolio management.
Financial Impact
Total insider sales of $512K are immaterial relative to $183.1B market cap.
Risk Factors
- Insider sales could accelerate if the stock continues to appreciate, but current levels are routine.
- No evidence of informed selling — the cluster is consistent with normal portfolio rebalancing.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-WDC-1780092832480 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 14, 2026 18d ago | 8-K | $426.94 $448.17 | ▲ +4.97% | ▲ +4.87% | $462.56 (+8.34%) |
Sep 2, 2026 29d ago | Insider Cluster | $441.57 $447.18 | ▲ +1.27% | ▲ +2.42% | $462.56 (+4.75%) |
Sep 2, 2026 29d ago | Insider Cluster | $441.57 $447.18 | ▲ +1.27% | ▲ +2.42% | $462.56 (+4.75%) |
Aug 26, 2026 5w ago | 8-K | $468.88 $448.90 | ▼ −4.26% | ▼ −4.14% | $462.56 (−1.35%) |
Jul 29, 2026 9w ago | Insider Cluster | $533.04 $451.52 | ▼ −15.29% | ▼ −18.92% | $462.56 (−13.22%) |
Jun 11, 2026 16w ago | Insider Cluster | $562.93 $746.23 | ▲ +32.56% | ▲ +31.89% | $462.56 (−17.83%) |
Jun 11, 2026 16w ago | Insider Cluster | $562.93 $746.23 | ▲ +32.56% | ▲ +31.89% | $462.56 (−17.83%) |
Jun 3, 2026 17w ago | 8-K | $593.83 $490.09 | ▼ −17.47% | ▼ −13.65% | $462.56 (−22.11%) |
Jun 2, 2026 17w ago | Insider Cluster | $593.83 $490.09 | ▼ −17.47% | ▼ −13.65% | $462.56 (−22.11%) |
Jun 2, 2026 17w ago | Insider Cluster | $593.83 $490.09 | ▼ −17.47% | ▼ −13.65% | $462.56 (−22.11%) |
US Market Status
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