Marc D. Graff - 01 Aug 2025 Form 4 Insider Report for CIENA CORP (CIEN)

Role: SVP & Chief Financial Officer
Signature: By: Michelle Rankin For: Marc D. Graff
Issuer symbol: CIEN
Transactions as of: 01 Aug 2025
Net transactions value: $0
Form type: 4
Filing time: 05 Aug 2025, 17:52:56 UTC
Next filing: 18 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Graff Marc D.	SVP & Chief Financial Officer	C/O CIENA CORPORATION, 7035 RIDGE RD., HANOVER	By: Michelle Rankin For: Marc D. Graff	05 Aug 2025	0002080157

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CIEN	Common Stock	Award	$0	+118,312		$0.000000	118,312	01 Aug 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reflects Restricted Stock Units (RSUs) that vest over four years, with one-quarter of the grant amount vesting on August 1, 2026, and thereafter with one-sixteenth of the grant amount vesting on November 1, February 1, May 1, and August 1 of each succeeding year.
F2	Shares reported include unvested Restricted Stock Units (RSUs).