Graff Marc D. 4

What Happened

• Marc D. Graff, Chief Financial Officer of CIENA Corp (CIEN), had 199 shares withheld on March 20, 2026 to cover tax liabilities related to a restricted stock unit (RSU) award. The shares were valued at $383.89 each, totaling approximately $76,394. This was a tax-withholding disposition (transaction code F), not an open-market sale.

Key Details

• Transaction date and price: 3/20/2026 at $383.89 per share (199 shares; $76,394 total).
• Filing date: Form 4 filed 3/24/2026 reporting the 3/20/2026 transaction; filing appears timely.
• Shares owned after transaction: Not stated in the provided summary of the filing.
• Footnotes of note:
  • F1: Shares were withheld to cover tax liabilities for an RSU award dated 12/16/2025; the RSU acquisition was previously reported on a Form 4 filed 12/18/2025.
  • F2: The shares reported include unvested RSUs.

Context

• This disposition is a routine tax-withholding event tied to RSU vesting and should not be interpreted the same way as an open-market sale or purchase. It reflects withholding to satisfy tax obligations rather than a directional trade signal.