Dino Diperna - 20 Dec 2023 Form 4 Insider Report for CIENA CORP (CIEN)

Role: SVP Global R&D
Signature: By: Michelle Rankin For: Dino DiPerna
Issuer symbol: CIEN
Transactions as of: 20 Dec 2023
Net transactions value: -$89,470
Form type: 4
Filing time: 22 Dec 2023, 09:28:34 UTC
Previous filing: 14 Dec 2023
Next filing: 04 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	$16,081	-369	-0.76%	$43.58	48,419	20 Dec 2023	Direct	F1, F2
transaction	CIEN	Common Stock	Tax liability	$8,890	-204	-0.42%	$43.58	48,215	20 Dec 2023	Direct	F2, F3
transaction	CIEN	Common Stock	Tax liability	$11,723	-269	-0.56%	$43.58	47,946	20 Dec 2023	Direct	F2, F4
transaction	CIEN	Common Stock	Tax liability	$19,524	-448	-0.93%	$43.58	47,498	20 Dec 2023	Direct	F2, F5
transaction	CIEN	Common Stock	Tax liability	$19,350	-444	-0.93%	$43.58	47,054	20 Dec 2023	Direct	F2, F6
transaction	CIEN	Common Stock	Tax liability	$13,902	-319	-0.68%	$43.58	46,735	20 Dec 2023	Direct	F2, F7

* 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 reporting person's Form 3 filed on 10/31/2023.
F2	Shares reported include unvested Restricted Stock Units (RSUs).
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 10/27/2023. Acquisition of the RSU was previously reported in Table I of reporting person's Form 4 filed on 10/31/2023.
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 12/05/2019. Acquisition of the RSU was previously reported in Table I of reporting person's Form 3 filed on 10/31/2023.
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 12/17/2019. Acquisition of the RSU was previously reported in Table I of reporting person's Form 3 filed on 10/31/2023.
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 12/13/2022. Acquisition of the RSU was previously reported in Table I of reporting person's Form 3 filed on 10/31/2023.
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 12/14/2021. Acquisition of the RSU was previously reported in Table I of reporting person's Form 3 filed on 10/31/2023.