Gary B Smith - 20 Mar 2025 Form 4 Insider Report for CIENA CORP (CIEN)

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CIEN	Common Stock	Tax liability	$192,493	-2,933	-0.75%	$65.63	388,816	20 Mar 2025	Direct	F1, F2
transaction	CIEN	Common Stock	Tax liability	$200,040	-3,048	-0.78%	$65.63	385,768	20 Mar 2025	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	$112,424	-1,713	-0.44%	$65.63	384,055	20 Mar 2025	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	$103,367	-1,575	-0.41%	$65.63	382,480	20 Mar 2025	Direct	F2, F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Id	Content
F1	Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022.
F2	Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).
F3	Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
F4	Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.
F5	Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/14/2021. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/16/2021.