Dino Diperna - 15 Jan 2026 Form 4 Insider Report for CIENA CORP (CIEN)

Signature
By: Michelle Rankin For: Dino Diperna
Issuer symbol
CIEN
Transactions as of
15 Jan 2026
Net transactions value
-$1,244,446
Form type
4
Filing time
16 Jan 2026, 14:32:04 UTC
Previous filing
23 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
DiPerna Dino SVP Global R&D C/O CIENA CORPORATION, 7035 RIDGE RD., HANOVER By: Michelle Rankin For: Dino Diperna 16 Jan 2026 0001998460

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CIEN Common Stock Sale $622,223 -2,527 -4.8% $246.23 49,868 15 Jan 2026 Direct F1, F2
transaction CIEN Common Stock Sale $622,223 -2,527 -5.1% $246.23 47,341 15 Jan 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 Sales were effected pursuant to Rule 10b5-1 trading plan dated 7/11/2025.
F2 Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).