MarketPeel
Insider Trading Intelligence
Chief Operating Officer
Wed, Mar 4, 2026
Mar 4
sold $0.00 of CSTL
13,811 shares @ $0.00
Decreased holdings by -33.30%
52nd largest trade (out of 57)
Cluster Buy
Trade made by an officer
Part of a cluster of 8 transactions by 4 insiders
31% win rate · -29.1% median edge vs SPY (13 trades, 90-day · small sample)
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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