Joseph Cumello - 20 Sep 2026 Form 4 Insider Report for CIENA CORP (CIEN)

Reporting relationship: EVP & General Mgr.
Issuer ticker: CIEN
Reported as of: 20 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 22 Sep 2026, 16:43:38 UTC
Prior SEC filing: 30 Jun 2026
Source filing: View source filing
Reporting owner signature: By: Michelle Rankin For: Joseph Cumello

Key filing fact

Joseph Cumello filed Form 4 for CIENA CORP (CIEN) on 22 Sep 2026.

Key facts

This page summarizes Joseph Cumello's Form 4 filing for CIENA CORP (CIEN).
5 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 22 Sep 2026, 16:43.

Change

Previous filing in this sequence was filed on 30 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001963638 Primary reporting owner

Cumello Joseph

Relationship: EVP & General Mgr.
Address: C/O CIENA CORPORATION, 8150 MAPLE LAWN BOULEVARD, SUITE 300, FULTON
Signature: By: Michelle Rankin For: Joseph Cumello
Signature date: 21 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -441
Change %: -1%
Price: $348.80^*
Shares after: 42,431
Date: 20 Sep 2026
Ownership: Direct
Footnotes: F1, F2

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -182
Change %: -0.43%
Price: $348.80^*
Shares after: 42,249
Date: 20 Sep 2026
Ownership: Direct
Footnotes: F2, F3

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -582
Change %: -1.4%
Price: $348.80^*
Shares after: 41,667
Date: 20 Sep 2026
Ownership: Direct
Footnotes: F2, F4

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -180
Change %: -0.43%
Price: $348.80^*
Shares after: 41,487
Date: 20 Sep 2026
Ownership: Direct
Footnotes: F2, F5

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -331
Change %: -0.8%
Price: $348.80^*
Shares after: 41,156
Date: 20 Sep 2026
Ownership: Direct
Footnotes: F2, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote 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 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 2/3/2023.

Footnote F2

Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).

Footnote 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 2/1/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 2/3/2023.

Footnote 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 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.

Footnote 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 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.

Footnote 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 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.