Insider Cluster (2 insiders) ·Filed Oct 5, 2026
Insider cluster: 2 insiders, $141K total
Actionable Insight • Neutral
The sales are small and likely routine. Monitor for any larger insider selling patterns or changes in corporate events that could warrant a reassessment.
Latest settled — T+5d
CORT ▼ -1.48% at T+5d
NEUTRAL call -1.48% · α vs SPY -1.34% · entry $119.57 → $117.80
Latest observation: T+13 -25.29% FF3 residual α
T+1d
+0.03%
call +0.03% · α +0.27%
$119.60
settled 21d ago
T+5d
-1.48%
call -1.48% · α -1.34%
$117.80
settled 15d ago
T+20d
Pending
in 6d
T+60d
Pending
in 2mo
Price Chart
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Executive Summary
Corcept Therapeutics insiders Sean Maduck and Joseph Lyon sold shares in open-market transactions totaling ~$141K on October 1, 2026. The sales are modest relative to the company's market cap and appear to be routine portfolio adjustments, not a bearish signal.
Key Financial Metrics
Direction
selling
Total Value
$141.0K
Insiders
2
Key Facts
- Sean Maduck sold 413 shares at $115.54 for ~$48K on October 1, 2026.
- Joseph Lyon sold 810 shares at $115.40 for ~$93K on October 1, 2026.
- Total open-market sales: ~$141K, representing less than 0.1% of market cap.
- Maduck also exercised derivatives and sold additional shares on October 2, 2026, totaling ~$2.9M, but those are outside the cluster window.
- Justin Gunn received a non-cash grant of 100,000 shares on October 1, 2026.
Financial Impact
~$141K in insider sales, immaterial relative to market cap
insider holdings
Risk Factors
- Insider selling could accelerate if management sees headwinds, but current levels are not alarming.
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-CORT-1791244490249 |
30 reports for CORT
89% Hit rate @ T+20 Went positive at some point 9 of 9 best @ T+60▲ +63.06%
Filters
Rows
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 5, 2026 21d ago | Insider Cluster | $119.57 | awaiting T+20 | — | $87.13 (−27.13%) |
Sep 23, 2026 4w ago | 8-K | $112.94 $116.28 | ▲ +2.96% | ▲ +2.27% | $87.13 (−22.85%) |
Sep 16, 2026 5w ago | Insider Cluster | $114.86 $113.37 | ▲ +1.30% | ▲ +2.50% | $87.13 (+24.14%) |
Sep 16, 2026 5w ago | Insider Cluster | $114.86 $113.37 | ▲ +1.30% | ▲ +2.75% | $87.13 (+24.14%) |
Aug 28, 2026 8w ago | Insider Cluster | $113.35 $114.74 | ▲ +1.23% | ▲ +1.60% | $87.13 (−23.13%) |
Aug 28, 2026 8w ago | Insider Cluster | $113.35 $114.74 | ▲ +1.23% | ▲ +1.60% | $87.13 (−23.13%) |
Aug 27, 2026 8w ago | Insider Cluster | $113.88 $115.63 | ▲ +1.54% | ▲ +2.02% | $87.13 (−23.49%) |
Aug 20, 2026 9w ago | Insider Cluster | $122.25 $113.76 | ▼ −6.94% | ▼ −7.96% | $87.13 (−28.73%) |
Aug 18, 2026 9w ago | Insider Cluster | $119.02 $114.86 | ▲ +3.50% | ▲ +2.66% | $87.13 (+26.79%) |
Aug 12, 2026 10w ago | Insider Cluster | $110.51 $112.79 | ▲ +2.06% | ▲ +3.81% | $87.13 (−21.16%) |
Showing 10 of 30
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