DAVID ROTHENSTEIN plan to sell securities of Ciena Corporation under Form 144

DAVID ROTHENSTEIN filed Form 144 to notify SEC of plan to sell 2500 units of Ciena Corporation securities around 2026-04-15, with aggregate market value of $1,167,975.00. The total outstanding units is 141398427.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: On 03/16/2026, sold 2500 units for $862500.00; On 02/17/2026, sold 2500 units for $750498.00;