Andrew Petrik - Dec 20, 2021 Form 4 Insider Report for CIENA CORP (CIEN)

Role: VP, CONTROLLER
Signature: By: Michelle Rankin For: Andrew C. Petrik
Stock symbol: CIEN
Transactions as of: Dec 20, 2021
Transactions value $: -$195,287
Form type: 4
Date filed: 12/22/2021, 02:53 PM
Previous filing: Dec 17, 2021
Next filing: Jan 18, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CIEN	Common Stock	Tax liability	-$11.2K	-150	-0.37%	$74.48	40.3K	Dec 20, 2021	Direct	F1, F2
transaction	CIEN	Common Stock	Tax liability	-$7.22K	-97	-0.24%	$74.48	40.2K	Dec 20, 2021	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	-$92.4K	-1.24K	-3.09%	$74.48	39K	Dec 20, 2021	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	-$16.9K	-227	-0.58%	$74.48	38.7K	Dec 20, 2021	Direct	F2, F5
transaction	CIEN	Common Stock	Tax liability	-$6.7K	-90	-0.23%	$74.48	38.6K	Dec 20, 2021	Direct	F2, F6
transaction	CIEN	Common Stock	Tax liability	-$9.76K	-131	-0.34%	$74.48	38.5K	Dec 20, 2021	Direct	F2, F7
transaction	CIEN	Common Stock	Tax liability	-$19.4K	-261	-0.68%	$74.48	38.2K	Dec 20, 2021	Direct	F2, F7
transaction	CIEN	Common Stock	Tax liability	-$5.51K	-74	-0.19%	$74.48	38.2K	Dec 20, 2021	Direct	F2, F8
transaction	CIEN	Common Stock	Tax liability	-$26.1K	-351	-0.92%	$74.48	37.8K	Dec 20, 2021	Direct	F2, F5

* 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 12/12/2017. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/14/2017.
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 12/18/2018. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/20/2018.
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 12/18/2018. The earning of the MSU was previously reported on Table I of the reporting person's Form 4 on 12/16/2021.
F5	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.
F6	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.
F7	Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a performance stock unit (PSU) award agreement dated 12/17/2019. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 on 12/18/2020.
F8	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.