Rick Hamilton - 20 Dec 2022 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 2022
Net transactions value: -$477,131
Form type: 4
Filing time: 22 Dec 2022, 15:10:24 UTC
Previous filing: 15 Dec 2022
Next filing: 22 Dec 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	$29,217	-593	-0.61%	$49.27	96,044	20 Dec 2022	Direct	F1, F2
transaction	CIEN	Common Stock	Tax liability	$26,951	-547	-0.57%	$49.27	95,497	20 Dec 2022	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	$18,131	-368	-0.39%	$49.27	95,129	20 Dec 2022	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	$86,912	-1,764	-1.9%	$49.27	93,365	20 Dec 2022	Direct	F2, F5
transaction	CIEN	Common Stock	Tax liability	$118,839	-2,412	-2.6%	$49.27	90,953	20 Dec 2022	Direct	F2, F6
transaction	CIEN	Common Stock	Tax liability	$22,172	-450	-0.49%	$49.27	90,503	20 Dec 2022	Direct	F2, F7
transaction	CIEN	Common Stock	Tax liability	$106,325	-2,158	-2.4%	$49.27	88,345	20 Dec 2022	Direct	F2, F8
transaction	CIEN	Common Stock	Tax liability	$68,584	-1,392	-1.6%	$49.27	86,953	20 Dec 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 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.
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 12/14/2021. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 on 12/15/2022.
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 12/17/2019. The earning of the MSU was previously reported on Table I of the reporting person's Form 4 on 12/15/2022.
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 12/16/2020. Acquisition of the RSU was previously reported in 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 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.