Ciena exec has 170 shares withheld for taxes

CIENA’s EVP & Chief Supply reported 170 shares withheld for RSU tax liabilities, leaving 6,347 shares including unvested RSUs.

Rhea-AI Filing Summary

CIENA CORP (CIEN) executive Grant Hoffman, EVP & Chief Supply, reported a Form 4 showing a disposition of 170 shares of common stock on September 20, 2026. The shares were withheld to cover tax liabilities arising from a previously reported Restricted Stock Unit (RSU) award, rather than sold in the open market. After this withholding, Hoffman directly holds 6,347 shares of CIENA common stock, and these reported holdings include unvested RSUs.

Insider Trade Summary

Tax Withholding: 170 shares

Tax Withholding 1 txn

Insider Hoffman Grant

Role EVP & Chief Supply

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	170	$348.80	$59K

Holdings After Transaction: Common Stock — 6,347 shares (Direct)

Footnotes (2)

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 6/22/2026. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 6/23/2026.
2. F2. Shares reported include unvested Restricted Stock Units (RSUs).

Key Figures

Shares withheld for taxes: 170 shares Per-share value for tax withholding: $348.80 per share Shares held after transaction: 6,347 shares +2 more

5 metrics

Shares withheld for taxes 170 shares Common stock withheld on September 20, 2026 to cover RSU-related tax liabilities

Per-share value for tax withholding $348.80 per share Value applied to the 170 CIENA common shares withheld for tax liabilities

Shares held after transaction 6,347 shares Direct CIENA common stock holdings of Grant Hoffman after the September 20, 2026 transaction, including unvested RSUs

Tax-withholding shares reported 170 shares Exercise-price-or-tax-liability-related disposition count in transaction summary

Number of dispose-type transactions 1 transaction Single tax-withholding disposition reported in this Form 4

Key Terms

Restricted Stock Unit (RSU), withheld to cover payment of the tax liabilities, unvested Restricted Stock Units (RSUs)

3 terms

Restricted Stock Unit (RSU) financial

"related to a restricted stock unit (RSU) award agreement dated 6/22/2026"

A restricted stock unit (RSU) is a promise from a company to give an employee company shares (or cash equal to their value) at a future date if certain conditions are met, such as staying with the company or hitting performance targets. For investors, RSUs matter because when they convert into actual shares they increase the number of shares available and can create selling pressure as employees cash out—think of them as a future paycheck paid in company stock.

withheld to cover payment of the tax liabilities financial

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

unvested Restricted Stock Units (RSUs) financial

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

FAQ

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

What did CIENA (CIEN) executive Grant Hoffman report in this Form 4?

He reported a disposition of 170 CIENA common shares on September 20, 2026. The shares were withheld to cover tax liabilities related to a Restricted Stock Unit (RSU) award, and not sold in an open-market transaction.

How many CIENA (CIEN) shares does Grant Hoffman hold after this transaction?

Following the tax-withholding transaction, Grant Hoffman directly holds 6,347 CIENA common shares. The filing states that these reported shares include unvested Restricted Stock Units (RSUs).

What was the price used for the 170 CIENA (CIEN) shares withheld?

The 170 shares were valued at $348.80 per share for the tax-withholding disposition on September 20, 2026, according to the Form 4 data for CIENA common stock.

Was the CIENA (CIEN) Form 4 transaction an open-market sale?

No. The Form 4 describes a tax-withholding disposition, where shares were withheld to cover payment of the reporting person’s tax liabilities related to an RSU award, rather than an open-market sale.

What RSU award is linked to this CIENA (CIEN) tax-withholding transaction?

The footnote states the withheld shares relate to a Restricted Stock Unit (RSU) award agreement dated June 22, 2026, whose acquisition was previously reported in a Form 4 filed on June 23, 2026.

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

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Available on EDGAR 09/22/2026 - 03:19 PM Accepted by SEC EDGAR 09/22/2026 - 03:18 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^*

Hoffman Grant

(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 & Chief Supply

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		170(1)	D	$348.8	6,347(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 6/22/2026. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 6/23/2026.

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

	By: Michelle Rankin For: Grant Hoffman	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)