Was Gage Brodie’s CIENA CORP (CIEN) share sale under a Rule 10b5-1 plan?

Yes. The Form 4 footnotes state the sales were effected pursuant to a Rule 10b5-1 trading plan dated July 1, 2025 and modified December 23, 2025. Such pre-arranged plans schedule trades in advance under predetermined conditions.

Ciena (NYSE: CIEN) SVP Gage Brodie sells 1,200 shares in 10b5-1 trade

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

CIENA CORP senior vice president Gage Brodie reported an open-market sale of 1,200 shares of common stock on 2026-05-15 at an average price of $570.65 per share. Following the sale, he holds 43,941 shares directly, which the footnotes state include unvested RSUs and PSUs.

The transaction was executed under a pre-arranged Rule 10b5-1 trading plan dated 07/01/2025 and modified on 12/23/2025, indicating the sale was scheduled in advance rather than timed opportunistically.

Insider Trade Summary 10b5-1

Net Seller: 1,200 shares ($684,780)

Net Sell 1 txn

Insider Gage Brodie

Role SVP Global Products & Supply

Sold 1,200 shs ($685K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,200	$570.65	$685K

Holdings After Transaction: Common Stock — 43,941 shares (Direct, null)

Footnotes (1)

Sales were affected pursuant to Rule 10b5-1 trading plan dated 07/01/2025 modified 12/23/2025. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).

Key Figures

Shares sold: 1,200 shares Sale price per share: $570.65 per share Shares held after sale: 43,941 shares +2 more

5 metrics

Shares sold 1,200 shares Open-market sale on May 15, 2026

Sale price per share $570.65 per share Average price for May 15, 2026 sale

Shares held after sale 43,941 shares Direct holdings after May 15, 2026, including unvested RSUs and PSUs

Rule 10b5-1 plan date July 1, 2025 Original adoption date of trading plan

Rule 10b5-1 plan modification December 23, 2025 Modification date of trading plan

Key Terms

Rule 10b5-1 trading plan, Restricted Stock Units (RSUs), Performance Stock Units (PSUs), open-market sale

4 terms

Rule 10b5-1 trading plan regulatory

"Sales were affected pursuant to Rule 10b5-1 trading plan dated 07/01/2025 modified 12/23/2025."

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.

Restricted Stock Units (RSUs) financial

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

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.

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 Insider Transactions: What Each Field Means →

05/19/2026 - 06:10 PM

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^*

Gage Brodie

(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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	SVP Global Products & Supply

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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)
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	05/15/2026		S		1,200⁽¹⁾	D	$570.65	43,941⁽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. Sales were affected pursuant to Rule 10b5-1 trading plan dated 07/01/2025 modified 12/23/2025.

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

	By: Michelle Rankin For: Brodie Gage	05/18/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did CIENA CORP (CIEN) report for Gage Brodie?

CIENA CORP reported that SVP Gage Brodie sold 1,200 shares of common stock in an open-market transaction on May 15, 2026, at an average price of $570.65 per share. This sale was disclosed in a Form 4 insider trading report.

How many CIENA CORP (CIEN) shares does Gage Brodie hold after this sale?

After the May 15, 2026 sale, Gage Brodie holds 43,941 CIENA CORP common shares directly. A footnote explains that this figure includes unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) in addition to already vested shares.

What type of security did Gage Brodie sell in CIENA CORP (CIEN)?

He sold CIENA CORP common stock. The Form 4 identifies the security as common stock, with 1,200 shares sold in an open-market transaction at an average price of $570.65 per share on May 15, 2026.

Does Gage Brodie’s CIENA CORP (CIEN) holding include RSUs and PSUs?

Yes. A Form 4 footnote clarifies that the 43,941 shares reported as held after the transaction include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs), not only already vested and freely tradable common shares.