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SEC filing
CSTL · CIK 1447362
4 · Apr 8, 2026 · MAETZOLD DEREK J sold 9,836 shares at $25.03/share ($246.2K); exercised options for 6,214 shares
MAETZOLD DEREK J sold 9,836 shares at $25.03/share ($246.2K); exercised options for 6,214 shares
FORM 4