Rick Hamilton - 20 Dec 2021 Form 4 Insider Report for CIENA CORP (CIEN)

Role: SVP, Software and Services
Signature: By: Michelle Rankin For: Rick Hamilton
Issuer symbol: CIEN
Transactions as of: 20 Dec 2021
Net transactions value: -$1,184,530
Form type: 4
Filing time: 22 Dec 2021, 14:44:38 UTC
Previous filing: 16 Dec 2021
Next filing: 27 Dec 2021
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	$33,516	-450	-0.42%	$74.48	106,868	20 Dec 2021	Direct	F1, F2
transaction	CIEN	Common Stock	Tax liability	$103,676	-1,392	-1.3%	$74.48	105,476	20 Dec 2021	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	$160,728	-2,158	-2%	$74.48	103,318	20 Dec 2021	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	$58,318	-783	-0.76%	$74.48	102,535	20 Dec 2021	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	$44,167	-593	-0.58%	$74.48	101,942	20 Dec 2021	Direct	F2, F5
transaction	CIEN	Common Stock	Tax liability	$564,633	-7,581	-7.4%	$74.48	94,361	20 Dec 2021	Direct	F2, F6
transaction	CIEN	Common Stock	Tax liability	$40,741	-547	-0.58%	$74.48	93,814	20 Dec 2021	Direct	F2, F7
transaction	CIEN	Common Stock	Tax liability	$59,584	-800	-0.85%	$74.48	93,014	20 Dec 2021	Direct	F2, F8
transaction	CIEN	Common Stock	Tax liability	$119,168	-1,600	-1.7%	$74.48	91,414	20 Dec 2021	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 12/16/2020. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/18/2020.
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 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.
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 12/12/2017. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/14/2017.
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 12/18/2018. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/20/2018.
F6	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.
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 12/17/2019. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/19/2019.
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 12/17/2019. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 on 12/18/2020.