DiPerna Dino 4

What Happened
Dino DiPerna, Senior Vice President, Global R&D at Ciena (CIEN), had a total of 2,052 shares withheld on March 20, 2026 to cover tax liabilities related to previously granted restricted stock units (RSUs). The withholding occurred at a reported share price of $383.89, for an aggregate value of approximately $787,743. These transactions are tax-withholding dispositions (code F), not open-market sales indicating investment intent.

Key Details

• Transaction date: March 20, 2026; Form 4 filed March 24, 2026 (filed within the normal two-business-day window).
• Price: $383.89 per share.
• Shares withheld (disposed): 204, 444, 730, 427, and 247 — total 2,052 shares; aggregate value ≈ $787,743.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Footnotes: Withholdings relate to multiple RSU award agreements (dates: 10/27/2023; 12/13/2022; 12/12/2023; 12/17/2024; 12/16/2025). Filing notes holdings include unvested RSUs and Performance Stock Units (PSUs).
• Transaction code: F = shares withheld to cover tax withholding on equity awards (cashless settlement), not a market sale.

Context
Withholding shares to cover taxes is a routine administrative step when RSUs vest; the company retains or cancels the withheld shares to satisfy tax obligations. This is different from a voluntary open-market sale and does not necessarily signal the insider’s view of the stock. The underlying RSU grants and their original reporting dates are referenced in the footnotes and earlier filings.