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SEC filing
CIEN · CIK 936395
4 · Sep 25, 2026 · Director NEVENS THOMAS MICHAEL sold 3,738 shares at $359.04/share ($1.3M); gifted 2,797 shares
Director NEVENS THOMAS MICHAEL sold 3,738 shares at $359.04/share ($1.3M); gifted 2,797 shares
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