MarketPeel
Insider Trading Intelligence
Pres. & Chief Exec. Officer
Mon, Dec 15, 2025
Dec 15
sold $717.32k of CSTL
18,513 shares @ $38.75
Decreased holdings by -27.50%
7th largest trade (out of 1428)
Abnormally LargeCluster BuyPositive 90D History
Trade made by an officer
Part of a cluster of 4 transactions by 3 insiders
10b5-1 scheduled trade
69% win rate · +13.4% median edge vs SPY (1275 trades, 90-day)
Abnormally large trade for this company
Price 73% above 200-day moving average
Small Cap stock — insider trades carry more weight
CSTLCASTLE BIOSCIENCES INC
HealthcareDiagnostics & Research
1D0.00%
1W+0.34%
1M+14.81%
3M-3.42%
6M
1Y

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