CIENA CORP — Director's Dealing 2021

Dec 22, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CIENA CORP (CIEN)
CIK: 0000936395
Period of Report: 2021-12-20

Reporting Person: Rothenstein David M (Sr. VP, General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-12-20	Common Stock	F	1772	$74.48	Disposed	290502	Direct
2021-12-20	Common Stock	F	657	$74.48	Disposed	289845	Direct
2021-12-20	Common Stock	F	606	$74.48	Disposed	289239	Direct
2021-12-20	Common Stock	F	886	$74.48	Disposed	288353	Direct
2021-12-20	Common Stock	F	498	$74.48	Disposed	287855	Direct
2021-12-20	Common Stock	F	1542	$74.48	Disposed	286313	Direct
2021-12-20	Common Stock	F	2390	$74.48	Disposed	283923	Direct
2021-12-20	Common Stock	F	867	$74.48	Disposed	283056	Direct
2021-12-20	Common Stock	F	8398	$74.48	Disposed	274658	Direct

Footnotes

F1: 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.

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 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.

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 12/16/2020. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/18/2020.

F6: 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.

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 12/12/2017. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 on 12/14/2017.

F8: 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.