CIENA CORP — Director's Dealing 2021

Dec 16, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CIENA CORP (CIEN)
CIK: 0000936395
Period of Report: 2021-12-14

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-12-14	Common Stock	A	16279	$0.0	Acquired	263109	Direct
2021-12-14	Common Stock	M	17386	—	Acquired	280495	Direct
2021-12-14	Common Stock	A	14279	$0.0	Acquired	294774	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-12-14	Market Stock Units (2021)	$0.0	M	8693	Disposed		Common Stock (8693)	Direct

Footnotes

F1: Reflects the number of stock units earned pursuant to the terms of a performance stock unit award granted on December 16, 2020 reflecting the achievement of the related performance conditions. These shares vest in equal 1/2 amounts on each of December 20, 2021 and 2022.

F2: Shares reported include unvested Restricted Stock Units (RSUs), Performance Stock Units (PSUs), and Market Stock Units (MSUs).

F3: Reflects the number of stock units earned pursuant to the terms of a market stock unit (MSU) award granted on December 18, 2018 reflecting the level of achievement of the applicable total shareholder return (TSR) performance conditions. These shares vest on December 20, 2021.

F4: Each MSU will convert on the vesting date into common stock pursuant to the terms of the MSU award.

F5: Reflects Restricted Stock Units (RSUs) that vest over four years, with one-sixteenth of the grant amount vesting on March 20, June 20, September 20, and December 20 of each year, commencing on March 20, 2022.

F6: Each MSU represents the contingent right to receive, following vesting, between 0% and 200% of one share of the Issuer's common stock, subject to the level of achievement of applicable TSR performance conditions over a three-year period from fiscal 2019 through fiscal 2021.