Ciena (NYSE: CIEN) CEO Gary Smith sells 2,993 shares under Rule 10b5-1 plan

Rhea-AI Filing Summary

Ciena Corporation president and CEO Gary B. Smith reported selling 2,993 shares of Ciena common stock on 01/15/2026 in an open-market transaction coded as a sale. The shares were sold at a weighted average price of $247.6475, based on individual trades ranging from $243.4700 to $251.8700, executed pursuant to a Rule 10b5-1 trading plan dated 10/04/2025. After this transaction, Smith beneficially owned 304,892 Ciena shares in direct form, and this figure includes unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).

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

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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)
01/15/2026

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	01/15/2026		S		2,993(1)	D	$247.6475(2)	304,892(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 affected 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 $243.4700 to $251.8700. 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	01/16/2026
	** 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 (CIEN) CEO Gary B. Smith report?

Gary B. Smith, president and CEO of Ciena Corporation, reported an open-market sale of 2,993 shares of Ciena common stock on 01/15/2026, coded as a sale (S) on Form 4.

At what price did the Ciena (CIEN) shares sell in Gary Smith’s Form 4 filing?

The sale reflected a weighted average price of $247.6475 per share, with individual trades executed in a price range from $243.4700 to $251.8700.

Was Gary Smith’s sale of Ciena (CIEN) stock under a Rule 10b5-1 plan?

Yes. The filing states that the sales were effected pursuant to a Rule 10b5-1 trading plan dated 10/04/2025, indicating a pre-arranged trading program.

How many Ciena (CIEN) shares does Gary Smith hold after this transaction?

Following the reported sale, Gary B. Smith beneficially owned 304,892 Ciena shares, held directly. This total includes unvested RSUs and PSUs.

What role does Gary B. Smith hold at Ciena (CIEN) according to the Form 4?

According to the filing, Gary B. Smith is a director of Ciena Corporation and serves as its President and CEO.

Does the Form 4 for Ciena (CIEN) indicate indirect ownership or entities for this sale?

No. The reported transaction is listed as direct ownership (D), and the filing does not attribute the sale to any separate entity or indirect ownership structure.