MarketPeel
Insider Trading Intelligence
Chief Operating Officer
Tue, Nov 11, 2025
Nov 11
sold $664.51k of CSTL
18,932 shares @ $35.10
Decreased holdings by -60.60%
Largest trade (out of 57)
Abnormally LargeCluster Buy
Trade made by an officer
Part of a cluster of 3 transactions by 2 insiders
10b5-1 scheduled trade
18% win rate · -40.1% median edge vs SPY (11 trades, 90-day · small sample)
Abnormally large trade for this company
Price 64% 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

FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback