David M. Rothenstein - 20 Jun 2026 Form 4 Insider Report for CIENA CORP (CIEN)

Reporting relationship: SVP and Chief Strategy Officer
Issuer ticker: CIEN
Reported as of: 20 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 23 Jun 2026, 13:51:48 UTC
Prior SEC filing: 17 Jun 2026
Source filing: View source filing
Reporting owner signature: By: Michelle Rankin For: David M. Rothenstein

Key filing fact

David M. Rothenstein filed Form 4 for CIENA CORP (CIEN) on 23 Jun 2026.

Key facts

This page summarizes David M. Rothenstein's Form 4 filing for CIENA CORP (CIEN).
5 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 23 Jun 2026, 13:51.

Change

Previous filing in this sequence was filed on 17 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 0001444157 Primary reporting owner

Rothenstein David M

Relationship: SVP and Chief Strategy Officer
Address: C/O CIENA CORPORATION, 7035 RIDGE RD., HANOVER
Signature: By: Michelle Rankin For: David M. Rothenstein
Signature date: 22 Jun 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: -679
Change %: -0.36%
Price: $428.22^*
Shares after: 186,902
Date: 20 Jun 2026
Ownership: Direct
Footnotes: F1, F2

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -204
Change %: -0.11%
Price: $428.22^*
Shares after: 186,698
Date: 20 Jun 2026
Ownership: Direct
Footnotes: F1, F2

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -811
Change %: -0.43%
Price: $428.22^*
Shares after: 185,887
Date: 20 Jun 2026
Ownership: Direct
Footnotes: F2, F3

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -436
Change %: -0.23%
Price: $428.22^*
Shares after: 185,451
Date: 20 Jun 2026
Ownership: Direct
Footnotes: F2, F4

CIEN transaction

Common Stock

Tax liability

Transaction value
Shares: -220
Change %: -0.12%
Price: $428.22^*
Shares after: 185,231
Date: 20 Jun 2026
Ownership: Direct
Footnotes: F2, F5

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 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 4 filed on 12/15/2022.

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

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.