The insider cluster is dominated by routine tax-withholding transactions and immaterial open-market sales. No actionable signal — monitor next earnings for fundamental trends rather than reading into this activity.
Price Chart
Executive Summary
Two SITM directors sold a combined ~$1.0M in open-market sales on August 17, 2026, while six executives (including the CEO and CFO) surrendered shares for tax withholding on August 20, 2026. The open-market sales are modest relative to the $18.5B market cap (~0.005%), and the tax-withholding transactions are non-cash events tied to vesting, not discretionary selling. The cluster is dominated by non-informative tax withholding, and the open-market sales are too small to carry a directional signal.
Key Financial Metrics
Key Facts
- Two directors sold ~$1.0M in open-market sales on 2026-08-17, representing ~0.005% of market cap.
- Six executives (CEO, CFO, and four others) surrendered shares for tax withholding on 2026-08-20, totaling ~$40.6M in non-cash transactions.
- The tax-withholding transactions are routine vesting-related events, not discretionary sales.
- Historical performance on SITM shows a 33% win rate at T+20 with an average alpha of -5.16%, suggesting prior bullish calls have been wrong.
- Score calibration data shows score=3 events have a 39% observed probability of up-move at T+20, consistent with a neutral read.
Financial Impact
Open-market sales of ~$1.0M are trivial relative to $18.5B market cap. Tax-withholding transactions of ~$40.6M are non-cash and non-informative.
Risk Factors
- Insider selling, even if small, could be misinterpreted by the market as a negative signal.
- Historical performance suggests the stock has been volatile, with prior reports showing poor directional accuracy.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-SITM-1787620342289 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 14, 2026 4w ago | Insider Cluster | $550.39 $548.90 | ▼ −0.27% | ▲ +0.17% | $487.00 (−11.52%) |
Sep 9, 2026 5w ago | 144 | $589.87 $602.27 | ▼ −2.10% | ▼ −2.70% | $487.00 (+17.44%) |
Aug 19, 2026 8w ago | Insider Cluster | $598.81 $614.83 | ▲ +2.68% | ▲ +2.27% | $487.00 (−18.67%) |
Aug 19, 2026 8w ago | Insider Cluster | $598.81 $614.83 | ▲ +2.68% | ▲ +2.27% | $487.00 (−18.67%) |
Aug 19, 2026 8w ago | Insider Cluster | $598.81 $614.83 | ▲ +2.68% | ▲ +2.27% | $487.00 (−18.67%) |
Aug 18, 2026 8w ago | Insider Cluster | $680.06 $618.71 | ▲ +9.02% | ▲ +9.23% | $487.00 (+28.39%) |
Aug 12, 2026 9w ago | Insider Cluster | $680.52 $687.93 | ▲ +1.09% | ▲ +0.39% | $487.00 (−28.44%) |
Jul 1, 2026 15w ago | 8-K | $703.84 $601.66 | ▼ −14.52% | ▼ −14.39% | $487.00 (−30.81%) |
Jun 15, 2026 17w ago | Insider Cluster | $684.86 $677.21 | ▼ −1.12% | ▲ +0.13% | $487.00 (−28.89%) |
Jun 15, 2026 17w ago | 144 | $742.46 $684.86 | ▲ +7.76% | ▲ +7.16% | $487.00 (+34.41%) |
US Market Status
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