Insider sales at this scale relative to market cap are routine and non-informative. Monitor for any upcoming earnings or guidance changes, but this cluster alone does not warrant a trading response. The CEO and CFO selling on the same day is notable but likely reflects coordinated 10b5-1 plan execution or blackout-window opening rather than a bearish signal.
Price Chart
Executive Summary
Seagate's CEO and CFO sold a combined $11.9M in open-market sales on August 21, 2026, with the CEO alone selling $9.6M. While the dollar amount is large, it represents only ~0.006% of the company's $192.6B market cap, making it trivial relative to company size. The cluster is entirely sells, but per academic literature, insider sales are weak predictors and this is likely liquidity-driven diversification at a mega-cap company.
Key Financial Metrics
Key Facts
- CEO William D. Mosley sold 11,300 shares at $849.35 for $9.6M on 2026-08-21
- CFO Gianluca Romano sold 2,700 shares at $849.35 for $2.3M on 2026-08-21
- Total insider selling of $11.9M is only ~0.006% of $192.6B market cap
- All trades were open-market sales (code S) — no derivative exercises or grants involved
- EVP & CCO Teh Ban Seng also sold 8,828 shares across 20 trades on 2026-08-21 totaling ~$6.8M
Financial Impact
$11.9M in insider sales, representing ~0.006% of market cap
Risk Factors
- Insider sales could be misinterpreted by retail traders as bearish
- No material risk identified from this filing alone
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-STX-1787642095895 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 11, 2026 20d ago | Insider Cluster | $805.55 $877.33 | ▲ +8.91% | ▲ +8.80% | $823.86 (+2.27%) |
Sep 11, 2026 20d ago | Insider Cluster | $805.55 $877.33 | ▼ −8.91% | ▼ −8.80% | $823.86 (−2.27%) |
Sep 11, 2026 20d ago | Insider Cluster | $805.55 $877.33 | ▲ +8.91% | ▲ +8.80% | $823.86 (+2.27%) |
Sep 9, 2026 23d ago | 8-K | $885.92 $783.18 | ▼ −11.60% | ▼ −10.94% | $823.86 (−7.01%) |
Sep 3, 2026 29d ago | Insider Cluster | $798.61 $830.17 | ▼ −3.95% | ▼ −5.10% | $823.86 (−3.16%) |
Aug 26, 2026 5w ago | Insider Cluster | $846.37 $808.54 | ▼ −4.47% | ▼ −4.35% | $823.86 (−2.66%) |
Aug 24, 2026 5w ago | Insider Cluster | $794.65 $828.38 | ▲ +4.24% | ▲ +3.78% | $823.86 (+3.68%) |
Aug 14, 2026 7w ago | Insider Cluster | $973.44 $850.00 | ▼ −12.68% | ▼ −11.31% | $823.86 (−15.37%) |
Aug 11, 2026 7w ago | Insider Cluster | $820.52 $903.68 | ▲ +10.13% | ▲ +10.54% | $823.86 (+0.41%) |
Aug 4, 2026 8w ago | Insider Cluster | $837.66 $878.21 | ▲ +4.84% | ▲ +4.49% | $823.86 (−1.65%) |
US Market Status
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