The cluster is too small relative to market cap to warrant a bearish read — these are likely liquidity-driven sales following option exercises. Monitor for any upcoming 8-K or press release that could have motivated the timing, but no immediate action is warranted.
Price Chart
Executive Summary
Two Corcept Therapeutics insiders — Director Kimberly Park and executive Sean Maduck — sold a combined $4.01M in open-market shares over two days, with Park's sale following a derivative exercise and tax-withholding transaction. At a $12.6B market cap, the cluster represents ~0.03% of market cap, well below the 0.1% threshold for materiality, suggesting routine portfolio diversification rather than a bearish signal. The historical performance data shows prior neutral/long calls on CORT have been strongly profitable, but this cluster's small size relative to market cap and the presence of derivative exercises (non-cash) indicate no actionable trading signal.
Key Financial Metrics
Key Facts
- Two insiders sold $4.01M in open-market shares over two days (Aug 25-26, 2026)
- Total cluster value is ~0.03% of CORT's $12.6B market cap — trivial
- Director Park's sale followed a derivative exercise and tax withholding; Maduck's sale followed derivative exercises
- No open-market purchases in the cluster; net direction is selling
Financial Impact
Total open-market sales of $4.01M, representing ~0.03% of market cap
Risk Factors
- Insider sales could accelerate if the stock continues to rally
- No purchases to offset the selling signal
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-1787983309509 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 28, 2026 5w ago | Insider Cluster | $113.88 $115.63 | ▲ +1.54% | ▲ +1.28% | $116.17 (+2.01%) |
Aug 28, 2026 5w ago | Insider Cluster | $113.88 $116.10 | ▲ +1.95% | ▲ +1.44% | $116.17 (+2.01%) |
Aug 27, 2026 5w ago | Insider Cluster | $116.93 $117.00 | ▲ +0.06% | ▲ +0.16% | $116.17 (−0.65%) |
Aug 20, 2026 6w ago | Insider Cluster | $121.05 $114.86 | ▼ −5.11% | ▼ −5.11% | $116.17 (−4.03%) |
Aug 18, 2026 6w ago | Insider Cluster | $118.10 $111.85 | ▲ +5.29% | ▲ +4.30% | $116.17 (+1.63%) |
Aug 12, 2026 7w ago | Insider Cluster | $112.18 $114.92 | ▲ +2.44% | ▲ +4.34% | $116.17 (+3.56%) |
Aug 12, 2026 7w ago | Insider Cluster | $112.18 $114.92 | ▲ +2.44% | ▲ +4.34% | $116.17 (+3.56%) |
Aug 6, 2026 8w ago | Insider Cluster | $110.77 $111.62 | ▲ +0.77% | ▲ +1.16% | $116.17 (+4.87%) |
Aug 5, 2026 8w ago | Insider Cluster | $107.95 $112.80 | ▲ +4.49% | ▲ +3.89% | $116.17 (+7.61%) |
Jul 23, 2026 10w ago | Court Ruling | $96.66 $121.05 | ▲ +25.23% | ▲ +21.92% | $116.17 (+20.18%) |
US Market Status
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