Ciena EVP Joseph Cumello sells 1,586 shares

The sale was made under a Rule 10b5-1 trading plan dated October 13, 2025.

Rhea-AI Filing Summary

Ciena Corp (CIEN) EVP & General Mgr. Joseph Cumello sold 1,586 shares of common stock on September 25, 2026, at a weighted average price of $358.5151 per share. The sale was made under a Rule 10b5-1 trading plan dated October 13, 2025; reported sale prices ranged from $355.49 to $364.05. He directly held 39,570 shares after the sale, including unvested RSUs and PSUs.

Insider Trade Summary 10b5-1

Net Seller: 1,586 shares

Net Sell 1 txn

Insider Cumello Joseph

Role EVP & General Mgr.

Sold 1,586 shs ($569K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2, F3	1,586	$358.5151	$569K

Holdings After Transaction: Common Stock — 39,570 shares (Direct)

Footnotes (3)

1. F1. Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/13/2025.
2. F2. Reflects the weighted average sales price with transactions in a range of sales from $ 355.49 to $364.05. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.
3. F3. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).

Key Figures

Common shares sold: 1,586 shares Weighted average sale price: $358.5151 per share Reported sale-price range: $355.49 to $364.05 +2 more

5 metrics

Common shares sold 1,586 shares September 25, 2026

Weighted average sale price $358.5151 per share Sale on September 25, 2026

Reported sale-price range $355.49 to $364.05 Prices for the reported sales

Reported holdings after sale 39,570 shares Includes unvested RSUs and PSUs

Rule 10b5-1 trading plan date October 13, 2025 Plan governing the sale

Key Terms

Rule 10b5-1 trading plan, weighted average sales price, Restricted Stock Units (RSUs), Performance Stock Units (PSUs)

4 terms

Rule 10b5-1 trading plan regulatory

"pursuant to Rule 10b5-1 trading plan dated 10/13/2025"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average sales price financial

"Reflects the weighted average sales price"

Restricted Stock Units (RSUs) financial

"unvested Restricted Stock Units (RSUs)"

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

"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.

FAQ

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

How many CIEN shares did Joseph Cumello sell, and at what price?

Joseph Cumello sold 1,586 Ciena common shares on September 25, 2026, at a weighted average of $358.5151 per share. The sale was made under a Rule 10b5-1 trading plan dated October 13, 2025, and reported sale prices ranged from $355.49 to $364.05.

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

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Available on EDGAR 09/29/2026 - 07:59 PM Accepted by SEC EDGAR 09/29/2026 - 07:58 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).

X

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)
09/25/2026

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	09/25/2026		S		1,586(1)	D	$358.5151(2)	39,570(3)	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. Sales were affected pursuant to Rule 10b5-1 trading plan dated 10/13/2025.

2. Reflects the weighted average sales price with transactions in a range of sales from $ 355.49 to $364.05. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

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

	By: Michelle Rankin For: Joseph Cumello	09/25/2026
	** 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)