Ciena (NYSE: CIEN) director receives 605-share restricted stock award

Rhea-AI Filing Summary

PUMA MARY G reported acquisition or exercise transactions in this Form 4 filing.

Ciena Corporation director Mary G. Puma received an equity award of 605 shares of Common Stock as a grant of restricted stock units. These RSUs vest in full on the first anniversary of the grant date, meaning she will gain full ownership after one year if conditions are met. Following this award, she holds 11,477 shares directly, and this total includes unvested RSUs, so part of her position is still subject to vesting.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider PUMA MARY G

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	605	$0.00	--

Holdings After Transaction: Common Stock — 11,477 shares (Direct)

Footnotes (1)

1. Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant. Shares reported include unvested Restricted Stock Units (RSUs).

Key Figures

RSU grant size: 605 shares Holdings after transaction: 11,477 shares Vesting schedule: 1-year cliff vesting

3 metrics

RSU grant size 605 shares Restricted stock units awarded to director Mary G. Puma

Holdings after transaction 11,477 shares Total Ciena Common Stock held directly after the grant

Vesting schedule 1-year cliff vesting RSUs vest in full on first anniversary of grant date

Key Terms

Restricted stock units (RSUs), unvested Restricted Stock Units (RSUs), Grant, award, or other acquisition

3 terms

Restricted stock units (RSUs) financial

"Restricted stock units (RSUs) vest in full on the first anniversary"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

unvested Restricted Stock Units (RSUs) financial

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

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

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).

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^*

PUMA MARY G

(Last) (First) (Middle)

C/O CIENA CORPORATION

7035 RIDGE RD.

(Street)

HANOVER MARYLAND 21076-1426

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/26/2026

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

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

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

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	03/26/2026		A		605(1)	A	$0.0	11,477(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. Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

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

	By: Michelle Rankin For: Mary G Puma	03/27/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What did Ciena (CIEN) director Mary G. Puma report in this Form 4?

Mary G. Puma reported receiving 605 shares of Ciena Common Stock as a grant of restricted stock units. The award is compensation-related, not an open-market purchase, and increases her direct holdings to 11,477 shares, including unvested RSUs.

How many Ciena (CIEN) shares does Mary G. Puma hold after this grant?

After the grant, Mary G. Puma directly holds 11,477 Ciena Common Stock shares. This figure includes both vested shares and unvested restricted stock units, so part of her reported position will only become fully owned as future vesting occurs.

How do the Ciena (CIEN) RSUs granted to Mary G. Puma vest?

The restricted stock units granted to Mary G. Puma vest in full on the first anniversary of the grant date. This means she must remain eligible through that one-year period before all 605 RSUs convert into fully vested Ciena Common Stock.

Was Mary G. Puma’s Ciena (CIEN) Form 4 a market purchase or a compensation award?

The Form 4 reflects a compensation-related equity award, not a market purchase. Mary G. Puma received 605 shares of Ciena Common Stock as a grant of restricted stock units at no cash cost per share, consistent with director equity compensation.

Does Mary G. Puma’s Ciena (CIEN) Form 4 show any stock sales?

The Form 4 does not report any stock sales. It shows a single acquisition transaction coded as a grant or award, where Mary G. Puma received 605 restricted stock units that increase her direct holdings to 11,477 shares, including unvested RSUs.