CIENA CORP — Director's Dealing 2021

Mar 23, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CIENA CORP (CIEN)
CIK: 0000936395
Period of Report: 2021-03-20

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-03-20	Common Stock	F	598	$55.42	Disposed	273881	Direct
2021-03-20	Common Stock	F	453	$55.42	Disposed	273428	Direct
2021-03-20	Common Stock	F	417	$55.42	Disposed	273011	Direct
2021-03-20	Common Stock	F	343	$55.42	Disposed	272668	Direct

Footnotes

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

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 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 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 reporting person's Form 4 on 12/18/2020.