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SEC filing
CSTL · CIK 1447362
4 · Aug 18, 2026 · MAETZOLD DEREK J sold 7,232 shares at $30.02/share ($217.1K); exercised options for 1,100 shares
MAETZOLD DEREK J sold 7,232 shares at $30.02/share ($217.1K); exercised options for 1,100 shares
FORM 4