MarketPeel
Insider Trading Intelligence
Pres. & Chief Exec. Officer
Thu, May 21, 2026
May 21
sold $4.28k of CSTL
212 shares @ $20.20
Decreased holdings by -9.80%
1073rd largest trade (out of 1428)
Cluster BuyPositive 90D History
Trade made by an officer
Part of a cluster of 4 transactions by 3 insiders
10b5-1 scheduled trade
70% win rate · +13.4% median edge vs SPY (1305 trades, 90-day)
Price 28% below 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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