Insider sales are routine and non-informative at this scale — no bearish read-through. Monitor next 10-Q for revenue and guidance updates; the strong historical win rate on CORT reports (86% T+20) suggests the stock's momentum is driven by fundamentals, not insider trading patterns.
Price Chart
Executive Summary
Two C-suite insiders at Corcept Therapeutics sold shares on August 10, 2026, totaling $662K in open-market sales. The sales follow derivative exercises and coincide with a period of strong stock performance (market cap $12.4B), but the dollar amount is trivial relative to company size (~0.005% of market cap), making this a routine liquidity event rather than a bearish signal. The cluster is not amplified by the proportionality band, and the historical calibration suggests no material downside from insider sales at this scale.
Key Financial Metrics
Key Facts
- Chief Development Officer Guyer sold 16,300 shares total ($1.85M gross), with 4,770 shares at $114.04 and 11,530 shares at $113.18, all following derivative exercises
- See Remarks officer Maduck sold 1,031 shares at $114.52 ($118K) after exercising derivatives at $8.27
- Total open-market sales: $662K, representing ~0.005% of Corcept's $12.4B market cap
- Both sales occurred on the same day (Aug 10) after derivative exercises, consistent with tax-covering or routine diversification
- No insider purchases in the cluster; all cash transactions are sales
Financial Impact
Total open-market sales of $662K, immaterial relative to $12.4B market cap
Risk Factors
- Insider sales could accelerate if the stock continues to rally, but current volume is trivial
- No insider buying to signal confidence; all cash transactions are sells
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-CORT-1786774478904 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 28, 2026 5w ago | Insider Cluster | $113.88 $115.63 | ▲ +1.54% | ▲ +1.28% | $116.49 (+2.29%) |
Aug 28, 2026 5w ago | Insider Cluster | $113.88 $116.10 | ▲ +1.95% | ▲ +1.44% | $116.49 (+2.29%) |
Aug 27, 2026 5w ago | Insider Cluster | $116.93 $117.00 | ▲ +0.06% | ▲ +0.16% | $116.49 (−0.38%) |
Aug 20, 2026 6w ago | Insider Cluster | $121.05 $114.86 | ▼ −5.11% | ▼ −5.11% | $116.49 (−3.77%) |
Aug 18, 2026 6w ago | Insider Cluster | $118.10 $111.85 | ▲ +5.29% | ▲ +4.30% | $116.49 (+1.36%) |
Aug 12, 2026 7w ago | Insider Cluster | $112.18 $114.92 | ▲ +2.44% | ▲ +4.34% | $116.49 (+3.84%) |
Aug 12, 2026 7w ago | Insider Cluster | $112.18 $114.92 | ▲ +2.44% | ▲ +4.34% | $116.49 (+3.84%) |
Aug 6, 2026 8w ago | Insider Cluster | $110.77 $111.62 | ▲ +0.77% | ▲ +1.16% | $116.49 (+5.16%) |
Aug 5, 2026 8w ago | Insider Cluster | $107.95 $112.80 | ▲ +4.49% | ▲ +3.89% | $116.49 (+7.91%) |
Jul 23, 2026 10w ago | Court Ruling | $96.66 $121.05 | ▲ +25.23% | ▲ +21.92% | $116.49 (+20.52%) |
US Market Status
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