Marc D. Graff, Executive Vice President and Chief Financial Officer of Ciena Corporation, filed a statement of changes in beneficial ownership on November 3, 2026, disclosing a share withholding transaction dated November 1, 2026, related to a restricted stock unit award.

Key Highlights

  • Reporting person: Marc D. Graff, EVP and Chief Financial Officer of Ciena Corporation (NYSE:CIEN)
  • Transaction: 3,759 shares of common stock were disposed of under transaction code "F" on November 1, 2026
  • Price per share: $320.72, representing the value used for the tax-withholding calculation
  • Purpose: Shares were withheld to cover tax liabilities tied to an RSU award agreement dated August 1, 2025
  • Beneficial ownership following transaction: 103,377 shares of common stock held directly, including unvested RSUs
  • Filing signed: November 2, 2026, by Michelle Rankin on behalf of Marc D. Graff

Ciena CFO's RSU Tax Withholding and Remaining Ownership Position

According to the filing, Marc D. Graff, who serves as Executive Vice President and Chief Financial Officer of Ciena Corporation, had 3,759 shares of common stock withheld on November 1, 2026. The filing describes this as shares withheld to cover payment of tax liabilities related to a restricted stock unit award agreement dated August 1, 2025. The original acquisition of that RSU was previously reported in Table I of a Form 4 filed on August 5, 2025, according to the footnote in the current filing.

The transaction was coded "F," which under SEC instructions designates payment of an exercise price or tax liability by delivering or withholding securities. The price recorded was $320.72 per share. Ciena Corporation, listed on the New York Stock Exchange under the ticker CIEN, is a networking systems, services, and software company. Following the reported transaction, the filing states that Graff beneficially owned 103,377 shares of common stock directly, with a footnote clarifying that this total includes unvested restricted stock units.

No derivative securities transactions were reported in Table II of the filing. The filing was submitted by one reporting person and was not marked as an amendment to a prior filing. The form was signed on November 2, 2026, by Michelle Rankin acting on behalf of Marc D. Graff.

What Was Disclosed

Ciena Corporation CFO Marc D. Graff disclosed a disposal of 3,759 common shares at $320.72 per share on November 1, 2026, solely to satisfy tax obligations arising from a vesting RSU award, leaving a reported total beneficial ownership of 103,377 shares, including unvested RSUs.