Ciena exec Cumello has 1,716 shares withheld for taxes

A CIENA CORP executive reported five code F share withholdings totaling 1,716 CIEN shares to cover taxes on RSU awards.

Rhea-AI Filing Summary

CIENA CORP (CIEN) reported that executive vice president and general manager Joseph Cumello had company shares withheld on September 20, 2026 to cover tax liabilities arising from multiple restricted stock unit (RSU) awards. Five code F transactions disposed of a total of 1,716 shares of common stock at $348.80 per share. A footnote states that shares reported for this insider include unvested restricted stock units (RSUs) and performance stock units (PSUs).

Insider Trade Summary

Tax Withholding: 1,716 shares

Tax Withholding 5 txns

Insider Cumello Joseph

Role EVP & General Mgr.

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	441	$348.80	$154K
Tax Withholding	Common Stock F3, F2	182	$348.80	$63K
Tax Withholding	Common Stock F4, F2	582	$348.80	$203K
Tax Withholding	Common Stock F5, F2	180	$348.80	$63K
Tax Withholding	Common Stock F6, F2	331	$348.80	$115K

Holdings After Transaction: Common Stock — 41,156 shares (Direct)

Footnotes (6)

1. F1. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 2/3/2023.
2. F2. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).
3. F3. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 2/1/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 2/3/2023.
4. F4. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.
5. F5. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.
6. F6. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.

Key Figures

Shares withheld for tax liabilities: 1,716 shares Price per share for tax-withholding transactions: $348.80 per share Number of code F transactions: 5 transactions +1 more

4 metrics

Shares withheld for tax liabilities 1,716 shares Total shares across five code F transactions on September 20, 2026

Price per share for tax-withholding transactions $348.80 per share Reported for each common stock transaction on September 20, 2026

Number of code F transactions 5 transactions Non-derivative common stock entries used to cover tax liabilities

ExercisePriceOrTaxLiabilityShares 1,716 shares Aggregate shares classified as payment of exercise price or tax liability

Key Terms

Restricted Stock Units (RSUs), Performance Stock Units (PSUs), Form 3, Form 4, +1 more

5 terms

Restricted Stock Units (RSUs) financial

"Represents shares withheld to cover payment of the tax liabilities ... related to a restricted stock unit (RSU) award agreement"

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.

Performance Stock Units (PSUs) financial

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

Performance stock units (PSUs) are a form of executive or employee pay that promise company shares only if pre-set performance goals are met over a defined period; think of them as a bonus paid in stock that arrives only when the company hits agreed targets. Investors watch PSUs because they affect the number of shares outstanding (dilution) and reveal how management’s pay is tied to financial or operational results, aligning incentives with shareholder outcomes.

Form 3 regulatory

"Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 2/3/2023."

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

Form 4 regulatory

"Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

tax liabilities financial

"Represents shares withheld to cover payment of the tax liabilities of the reporting person"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did CIEN executive Joseph Cumello report in this Form 4?

He reported that 1,716 shares of CIENA CORP common stock were withheld on September 20, 2026 in five code F transactions to cover tax liabilities associated with previously granted restricted stock unit (RSU) awards.

What was the price per share for the CIEN shares withheld?

Each of the five transactions reports a price of $348.80 per share for CIENA CORP common stock, used in calculating the value of shares withheld to satisfy the executive’s tax liabilities related to RSU vesting.

How many CIEN Form 4 transactions were reported and of what type?

The filing lists five non-derivative transactions in CIENA CORP common stock, all coded F, described as payment of tax liability by delivering or withholding securities rather than open-market purchases or sales.

Do the reported CIEN transactions involve a Rule 10b5-1 trading plan?

No. The Form 4 indicates no Rule 10b5-1 trading plan for these transactions; they are characterized as shares withheld to cover the reporting person’s tax liabilities arising from RSU awards.

What equity awards are referenced in this CIEN Form 4?

Footnotes state the withholdings relate to restricted stock unit (RSU) award agreements dated December 13, 2022, February 1, 2023, December 12, 2023, December 17, 2024, and December 16, 2025, previously reported on Forms 3 and 4.

What does the Form 4 say about CIEN RSUs and PSUs held by the executive?

A footnote explains that shares reported for the insider include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs), indicating that part of the reported position consists of equity awards that have not yet vested.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/22/2026 - 04:44 PM Accepted by SEC EDGAR 09/22/2026 - 04:43 PM Learn about SEC filing dates

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^*

Cumello Joseph

(Last) (First) (Middle)

C/O CIENA CORPORATION

8150 MAPLE LAWN BOULEVARD, SUITE 300

(Street)

FULTON MARYLAND 20759

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & General Mgr.

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/20/2026

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	09/20/2026		F		441(1)	D	$348.8	42,431(2)	D
Common Stock	09/20/2026		F		182(3)	D	$348.8	42,249(2)	D
Common Stock	09/20/2026		F		582(4)	D	$348.8	41,667(2)	D
Common Stock	09/20/2026		F		180(5)	D	$348.8	41,487(2)	D
Common Stock	09/20/2026		F		331(6)	D	$348.8	41,156(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. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 3 filed on 2/3/2023.

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

3. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 2/1/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 2/3/2023.

4. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023.

5. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/16/2025. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/18/2025.

6. Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024.

	By: Michelle Rankin For: Joseph Cumello	09/21/2026
	** 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)