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

Role: VP, CONTROLLER
Signature: By: Michelle Rankin For: Andrew C. Petrik
Issuer symbol: CIEN
Transactions as of: 20 Dec 2021
Net transactions value: -$195,287
Form type: 4
Filing time: 22 Dec 2021, 14:53:16 UTC
Previous filing: 17 Dec 2021
Next filing: 18 Jan 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CIEN	Common Stock	Tax liability	$11,172	-150	-0.37%	$74.48	40,288	20 Dec 2021	Direct	F1, F2
transaction	CIEN	Common Stock	Tax liability	$7,225	-97	-0.24%	$74.48	40,191	20 Dec 2021	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	$92,430	-1,241	-3.1%	$74.48	38,950	20 Dec 2021	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	$16,907	-227	-0.58%	$74.48	38,723	20 Dec 2021	Direct	F2, F5
transaction	CIEN	Common Stock	Tax liability	$6,703	-90	-0.23%	$74.48	38,633	20 Dec 2021	Direct	F2, F6
transaction	CIEN	Common Stock	Tax liability	$9,757	-131	-0.34%	$74.48	38,502	20 Dec 2021	Direct	F2, F7
transaction	CIEN	Common Stock	Tax liability	$19,439	-261	-0.68%	$74.48	38,241	20 Dec 2021	Direct	F2, F7
transaction	CIEN	Common Stock	Tax liability	$5,512	-74	-0.19%	$74.48	38,167	20 Dec 2021	Direct	F2, F8
transaction	CIEN	Common Stock	Tax liability	$26,142	-351	-0.92%	$74.48	37,816	20 Dec 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.