MarketPeel
Insider Trading Intelligence
Chief Operating Officer
Tue, Dec 9, 2025
Dec 9
sold $0.00 of CSTL
15,961 shares @ $0.00
Decreased holdings by -50.00%
Cluster Buy
Trade made by an officer
Part of a cluster of 6 transactions by 4 insiders
25% win rate · -34.6% median edge vs SPY (12 trades, 90-day · small sample)
Price 72% 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

Recent insider activity at CSTL

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