Ciena (CIEN) CEO Gary Smith sells 2,952 shares in 10b5-1 trade

Rhea-AI Filing Summary

Ciena Corp President and CEO Gary B. Smith reported an open-market sale of 2,952 shares of common stock. The transaction took place on March 2, 2026 at a weighted average price of $354.6386 per share, with individual sales ranging from $345.8050 to $363.0350.

The sale was executed under a pre-arranged Rule 10b5-1 trading plan dated October 4, 2025, which allows executives to sell shares according to a preset schedule. Following this transaction, Smith directly owned 296,036 shares, which the filing states include unvested restricted stock units and performance stock units.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

SMITH GARY B

(Last) (First) (Middle)

C/O CIENA CORPORATION

7035 RIDGE RD.

(Street)

HANOVER MD 21076-1426

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CIENA CORP [ CIEN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President, CEO

3. Date of Earliest Transaction (Month/Day/Year)
03/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/02/2026		S		2,952(1)	D	$354.6386(2)	296,036(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/04/2025.

2. Reflects the weighted average sales price with transactions in a range of sales from $345.8050 to $363.0350. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

3. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).

	By: Michelle Rankin For: Gary B Smith	03/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did CIENA CORP (CIEN) report for Gary B. Smith?

CIENA CORP reported that President and CEO Gary B. Smith sold 2,952 shares of common stock. The sale occurred on March 2, 2026 as an open-market transaction under a pre-arranged Rule 10b5-1 trading plan.

At what price did Gary B. Smith sell CIENA CORP (CIEN) shares?

Gary B. Smith sold 2,952 CIENA CORP shares at a weighted average price of $354.6386 per share. Individual trades were executed within a reported price range between $345.8050 and $363.0350 during the same trading day.

How many CIENA CORP (CIEN) shares does Gary B. Smith own after this sale?

After the reported sale, Gary B. Smith beneficially owned 296,036 CIENA CORP common shares directly. The filing notes that this figure includes unvested Restricted Stock Units and Performance Stock Units as part of his overall equity holdings.

Was the CIENA CORP (CIEN) insider sale part of a Rule 10b5-1 plan?

Yes. The filing states that Gary B. Smith’s sale of 2,952 CIENA CORP shares was effected under a Rule 10b5-1 trading plan dated October 4, 2025, indicating the trades were pre-scheduled rather than discretionary.

What type of transaction did CIENA CORP (CIEN) report for its CEO?

CIENA CORP reported an open-market sale of common stock by its President and CEO, Gary B. Smith. The transaction used code “S,” indicating a sale in the open market or a private transaction under SEC reporting rules.

Does Gary B. Smith’s CIENA CORP (CIEN) share count include RSUs and PSUs?

Yes. The filing specifies that the 296,036 CIENA CORP shares reported as owned by Gary B. Smith include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs), reflecting both vested and certain unvested equity awards.