Ciena (CIEN) SVP and Chief Strategy Officer reports new stock unit awards

Q: Who is the reporting person in the latest Ciena (CIEN) insider report?

The reporting person is David M. Rothenstein , who serves as SVP and Chief Strategy Officer of Ciena Corporation.

Q: What Ciena (CIEN) stock transactions occurred on 12/16/2025?

On 12/16/2025 , David M. Rothenstein acquired 15,910 , 17,664 , and 7,148 shares of Ciena common stock at a reported price of $0.0 per share through PSU, MSU, and RSU awards.

Q: How many Ciena (CIEN) shares does David M. Rothenstein now beneficially own?

Following the reported transactions, he beneficially owns 221,412 Ciena common shares directly, including unvested RSUs, PSUs and MSUs.

Q: What is the vesting schedule for the new Ciena (CIEN) RSUs?

The Restricted Stock Units (RSUs) vest over four years, with one-sixteenth of the grant vesting on March 20, June 20, September 20, and December 20 of each year, starting on March 20, 2026 .

Q: What types of equity awards are referenced in this Ciena (CIEN) insider report?

The report references Performance Stock Units (PSUs) , Market Stock Units (MSUs) , and Restricted Stock Units (RSUs) tied to performance and time-based vesting conditions.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Ciena Corporation SVP and Chief Strategy Officer David M. Rothenstein reported acquiring additional Ciena common stock through the earning and vesting of stock unit awards. On 12/16/2025 he acquired 15,910 shares from a performance stock unit award granted on December 17, 2024, 17,664 shares from a market stock unit award granted on December 13, 2022 tied to total shareholder return conditions, and 7,148 restricted stock units, all at a reported price of $0.0 per share.

After these transactions he beneficially owns 221,412 Ciena shares directly, a figure that includes unvested Restricted Stock Units, Performance Stock Units and Market Stock Units. The PSU shares vest in equal halves on December 20, 2025 and December 20, 2026, the MSU shares vest on December 20, 2025, and the RSUs vest over four years in equal sixteenth installments each March 20, June 20, September 20 and December 20 beginning March 20, 2026.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Rothenstein David M

Role SVP and Chief Strategy Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	15,910	$0.00	--
Grant/Award	Common Stock	17,664	$0.00	--
Grant/Award	Common Stock	7,148	$0.00	--

Holdings After Transaction: Common Stock — 196,600 shares (Direct)

Footnotes (1)

Reflects the number of stock units earned pursuant to the terms of a performance stock unit (PSU) award granted on December 17, 2024 reflecting the achievement of the related performance conditions. These shares vest in equal 1/2 amounts on each of December 20, 2025 and 2026. Shares reported include unvested Restricted Stock Units (RSUs), Performance Stock Units (PSUs), and Market Stock Units (MSUs). Reflects the number of stock units earned pursuant to the terms of a market stock unit (MSU) award granted on December 13, 2022 reflecting the level of achievement of the applicable total shareholder return (TSR) performance conditions. These shares vest on December 20, 2025. Reflects Restricted Stock Units (RSUs) that vest over four years, with one-sixteenth of the grant amount vesting on March 20, June 20, September 20, and December 20 of each year, commencing on March 20, 2026.

Form 4 Insider Transactions: What Each Field Means →

12/18/2025 - 11:55 AM

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^*

Rothenstein David M

(Last)

(First)

(Middle)

C/O CIENA CORPORATION

7035 RIDGE RD.

(Street)

HANOVER

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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	SVP and Chief Strategy Officer

3. Date of Earliest Transaction (Month/Day/Year)
12/16/2025

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	12/16/2025		A		15,910⁽¹⁾	A	$0.0	196,600⁽²⁾	D
Common Stock	12/16/2025		A		17,664⁽³⁾	A	$0.0	214,264⁽²⁾	D
Common Stock	12/16/2025		A		7,148⁽⁴⁾	A	$0.0	221,412⁽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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Reflects the number of stock units earned pursuant to the terms of a performance stock unit (PSU) award granted on December 17, 2024 reflecting the achievement of the related performance conditions. These shares vest in equal 1/2 amounts on each of December 20, 2025 and 2026.

2. Shares reported include unvested Restricted Stock Units (RSUs), Performance Stock Units (PSUs), and Market Stock Units (MSUs).

3. Reflects the number of stock units earned pursuant to the terms of a market stock unit (MSU) award granted on December 13, 2022 reflecting the level of achievement of the applicable total shareholder return (TSR) performance conditions. These shares vest on December 20, 2025.

4. Reflects Restricted Stock Units (RSUs) that vest over four years, with one-sixteenth of the grant amount vesting on March 20, June 20, September 20, and December 20 of each year, commencing on March 20, 2026.

	By: Michelle Rankin For: David M Rothenstein	12/17/2025
	** 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.

Source: View Original Filing on SEC EDGAR

FAQ

Who is the reporting person in the latest Ciena (CIEN) insider report?

The reporting person is David M. Rothenstein, who serves as SVP and Chief Strategy Officer of Ciena Corporation.

What Ciena (CIEN) stock transactions occurred on 12/16/2025?

On 12/16/2025, David M. Rothenstein acquired 15,910, 17,664, and 7,148 shares of Ciena common stock at a reported price of $0.0 per share through PSU, MSU, and RSU awards.

How many Ciena (CIEN) shares does David M. Rothenstein now beneficially own?

Following the reported transactions, he beneficially owns 221,412 Ciena common shares directly, including unvested RSUs, PSUs and MSUs.

When do the newly earned Ciena (CIEN) PSU and MSU shares vest?

The PSU shares vest in equal halves on December 20, 2025 and December 20, 2026, while the MSU shares vest on December 20, 2025.

What is the vesting schedule for the new Ciena (CIEN) RSUs?

The Restricted Stock Units (RSUs) vest over four years, with one-sixteenth of the grant vesting on March 20, June 20, September 20, and December 20 of each year, starting on March 20, 2026.

What types of equity awards are referenced in this Ciena (CIEN) insider report?

The report references Performance Stock Units (PSUs), Market Stock Units (MSUs), and Restricted Stock Units (RSUs) tied to performance and time-based vesting conditions.