David M. Rothenstein - 20 Dec 2023 Form 4 Insider Report for CIENA CORP (CIEN)

Role: SVP and Chief Strategy Officer
Signature: By: Michelle Rankin For: David M. Rothenstein
Issuer symbol: CIEN
Transactions as of: 20 Dec 2023
Transactions value $: $-243,787
Form type: 4
Filing time: 22 Dec 2023, 09:36:42 UTC
Previous filing: 18 Dec 2023
Next filing: 17 Jan 2024
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	$-14,992	-344	-0.14%	$43.58	245,751	20 Dec 2023	Direct	F1, F2
transaction	CIEN	Common Stock	Tax liability	$-18,216	-418	-0.17%	$43.58	245,333	20 Dec 2023	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	$-29,068	-667	-0.27%	$43.58	244,666	20 Dec 2023	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	$-8,716	-200	-0.08%	$43.58	244,466	20 Dec 2023	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	$-12,987	-298	-0.12%	$43.58	244,168	20 Dec 2023	Direct	F2, F5
transaction	CIEN	Common Stock	Tax liability	$-33,513	-769	-0.31%	$43.58	243,399	20 Dec 2023	Direct	F2, F6
transaction	CIEN	Common Stock	Tax liability	$-44,626	-1,024	-0.42%	$43.58	242,375	20 Dec 2023	Direct	F2, F7
transaction	CIEN	Common Stock	Tax liability	$-81,669	-1,874	-0.77%	$43.58	240,501	20 Dec 2023	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 filed 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 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 filed 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 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed 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 12/14/2021. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/16/2021.
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 12/16/2020. The earning of the MSU was previously reported on Table I of the reporting person's Form 4 filed on 12/14/2023.
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 12/13/2022. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 filed on 12/14/2023.
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 filed on 12/15/2022.