CIENA (CIEN) Insider Report: 5,770 Shares Gifted by Director

Rhea-AI Filing Summary

T. Michael Nevens, a director of CIENA CORP (CIEN), reported a change in beneficial ownership dated 09/30/2025. The filing shows a disposition of 5,770 common shares under transaction code G, which the filer explains were given as a gift with no consideration received. After the reported transaction the reporting person beneficially owns 17,976 shares; the filing notes this total includes unvested Restricted Stock Units (RSUs). The Form 4 was filed individually by the reporting person and signed on behalf of the filer by Michelle Rankin.

Insider Trade Summary

5,770 shares gifted

Mixed 1 txn

Insider NEVENS THOMAS MICHAEL

Role Director

Type	Security	Shares	Price	Value
Gift	Common Stock	5,770	$0.00	--

Holdings After Transaction: Common Stock — 17,976 shares (Direct)

Footnotes (1)

1. These shares were given as a gift for which no consideration was received by the Reporting Person. Shares reported include unvested Restricted Stock Units (RSUs).

Form 4 Insider Transactions: What Each Field Means →

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).

1. Name and Address of Reporting Person^*

NEVENS THOMAS MICHAEL

(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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2025

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	09/30/2025		G		5,770	D	(1)	17,976(2)	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. These shares were given as a gift for which no consideration was received by the Reporting Person.

2. Shares reported include unvested Restricted Stock Units (RSUs).

	By: Michelle Rankin For: T. Michael Nevens	10/01/2025
	** 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 transaction did CIEN director T. Michael Nevens report on the Form 4?

The Form 4 reports a disposition of 5,770 common shares on 09/30/2025 recorded under transaction code G (gift).

How many CIEN shares does the reporting person beneficially own after the transaction?

The filing reports 17,976 shares beneficially owned following the reported transaction; this total includes unvested RSUs.

Was consideration received for the shares disposed by the CIEN director?

No. The filer states the shares were given as a gift and that no consideration was received.

Who signed the Form 4 for T. Michael Nevens?

The Form 4 was signed By: Michelle Rankin on behalf of T. Michael Nevens with the signature block dated 10/01/2025.

Was this Form 4 filed by one reporting person or jointly?

The filing indicates it was submitted as Form filed by One Reporting Person.