Stephen B. Alexander - Dec 20, 2022 Form 4 Insider Report for CIENA CORP (CIEN)

Role: SVP, Chief Technology Officer
Signature: By: Michelle Rankin For: Stephen B Alexander
Stock symbol: CIEN
Transactions as of: Dec 20, 2022
Transactions value $: -$376,423
Form type: 4
Date filed: 12/22/2022, 02:47 PM
Previous filing: Dec 19, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CIEN	Common Stock	Tax liability	-$22.5K	-456	-0.55%	$49.27	81.7K	Dec 20, 2022	Direct	F1, F2
transaction	CIEN	Common Stock	Tax liability	-$21.9K	-444	-0.54%	$49.27	81.3K	Dec 20, 2022	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	-$96.6K	-1.96K	-2.41%	$49.27	79.3K	Dec 20, 2022	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	-$18K	-366	-0.46%	$49.27	79K	Dec 20, 2022	Direct	F2, F5
transaction	CIEN	Common Stock	Tax liability	-$86.4K	-1.75K	-2.22%	$49.27	77.2K	Dec 20, 2022	Direct	F2, F6
transaction	CIEN	Common Stock	Tax liability	-$55.7K	-1.13K	-1.46%	$49.27	76.1K	Dec 20, 2022	Direct	F2, F6
transaction	CIEN	Common Stock	Tax liability	-$13K	-264	-0.35%	$49.27	75.8K	Dec 20, 2022	Direct	F2, F7
transaction	CIEN	Common Stock	Tax liability	-$62.3K	-1.27K	-1.67%	$49.27	74.6K	Dec 20, 2022	Direct	F2, F8

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

Explanation of Responses:

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 12/18/2018. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/20/2018.
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 12/17/2019. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/19/2019.
F4	Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a market stock unit (MSU) award agreement dated 12/17/2019. The earning of the MSU was previously reported on Table I of the reporting person's Form 4 on 12/15/2022.
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 12/16/2020. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/18/2020.
F6	Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a performance stock unit (PSU) award agreement dated 12/16/2020. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 on 12/16/2021.
F7	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 on 12/16/2021.
F8	Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a performance stock unit (PSU) award agreement dated 12/14/2021. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 on 12/15/2022.