Monitor for any negative corporate developments (e.g., guidance cuts, trial setbacks) that may have prompted the CEO's large-scale selling. The cluster's size and seniority warrant caution; consider reducing exposure or setting tighter stop-losses until next catalyst.
Price Chart
Executive Summary
CEO John Oyler sold ~$43.2M in open-market shares on July 16-17 after exercising options, while SVP/General Counsel Lee Chan Henry sold $201K on July 8. Total insider selling over 10 days reached ~$44.6M, representing 0.13% of market cap. The concentrated CEO selling, though modest relative to market cap, is a notable bearish signal given the magnitude and seniority.
Key Financial Metrics
Key Facts
- CEO John Oyler sold ~$43.2M in open-market shares on July 16-17, following derivative exercises of ~3M shares at $0 and $119.96.
- SVP/General Counsel Lee Chan Henry sold $201K on July 8.
- Total insider selling over the cluster window: ~$44.6M (0.13% of $34.7B market cap).
- Oyler's sales were part of a pre-arranged plan? No 10b5-1 pattern noted; sales occurred on two consecutive days after option exercises.
Financial Impact
Insider selling of ~$44.6M, or 0.13% of market cap, concentrated in CEO open-market sales.
Risk Factors
- CEO selling may signal management's view that shares are overvalued or that near-term headwinds exist.
- Further insider selling could follow, amplifying bearish sentiment.
- Historical calibration shows high-score insider reports on ONC have underperformed, suggesting limited downside from this signal 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-ONC-1784350936113 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 10, 2026 22d ago | Insider Cluster | $346.51 $350.84 | ▲ +1.25% | ▲ +1.47% | $358.07 (+3.34%) |
Sep 3, 2026 29d ago | Insider Cluster | $362.68 $346.51 | ▼ −4.46% | ▼ −3.31% | $358.07 (−1.27%) |
Aug 26, 2026 5w ago | 8-K | $375.80 $361.78 | ▼ −3.73% | ▼ −3.61% | $358.07 (−4.72%) |
Aug 14, 2026 7w ago | Insider Cluster | $347.48 $374.47 | ▲ +7.77% | ▲ +9.14% | $358.07 (+3.05%) |
Aug 12, 2026 7w ago | Insider Cluster | $356.01 $369.16 | ▲ +3.69% | ▲ +5.66% | $358.07 (+0.58%) |
Aug 10, 2026 7w ago | 144 | $359.27 $369.15 | ▼ −2.75% | ▼ −3.15% | $358.07 (+0.33%) |
Aug 5, 2026 8w ago | Insider Cluster | $329.80 $356.01 | ▲ +7.95% | ▲ +6.73% | $358.07 (+8.57%) |
Aug 5, 2026 8w ago | 8-K | $327.53 $359.05 | ▲ +9.62% | ▲ +9.27% | $358.07 (+9.32%) |
Jul 24, 2026 10w ago | Insider Cluster | $325.90 $322.08 | ▼ −1.17% | ▼ −1.55% | $358.07 (+9.87%) |
Jul 17, 2026 11w ago | Insider Cluster | $312.02 $326.77 | ▼ −4.73% | ▼ −5.41% | $358.07 (−14.76%) |
US Market Status
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