CIENA (CIEN) SVP and General Counsel Kosaraju sells 2,012 shares

Rhea-AI Filing Summary

CIENA CORP Senior Vice President and General Counsel Sheela Kosaraju sold 2,012 shares of common stock in an open-market transaction at $401.71 per share on April 1, 2026. The sale was executed under a pre-arranged Rule 10b5-1 trading plan dated October 14, 2025.

After this transaction, Kosaraju directly owns 92,107 shares of CIENA common stock, which the filing notes includes unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs). This indicates she retains a substantial equity position in the company following the sale.

Insider Trade Summary 10b5-1

Net Seller: 2,012 shares ($808,241)

Net Sell 1 txn

Insider Kosaraju Sheela

Role SVP and General Counsel

Sold 2,012 shs ($808K)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,012	$401.71	$808K

Holdings After Transaction: Common Stock — 92,107 shares (Direct)

Footnotes (1)

1. Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/14/2025. Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).

Key Figures

Shares sold: 2,012 shares Sale price per share: $401.71 per share Shares held after transaction: 92,107 shares

3 metrics

Shares sold 2,012 shares Open-market sale on April 1, 2026

Sale price per share $401.71 per share Common stock transaction price

Shares held after transaction 92,107 shares Direct holdings after sale, including unvested RSUs and PSUs

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 effected pursuant to Rule 10b5-1 trading plan dated 10/14/2025."

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 →

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^*

Kosaraju Sheela

(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 and General Counsel

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

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	04/01/2026		S		2,012(1)	D	$401.71	92,107(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. Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/14/2025.

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

	By: Michelle Rankin For: SHEELA KOSARAJU	04/01/2026
	** 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)

FAQ

What insider transaction did CIENA CORP (CIEN) report for Sheela Kosaraju?

CIENA CORP reported that SVP and General Counsel Sheela Kosaraju sold 2,012 shares of common stock in an open-market transaction. The sale was executed at $401.71 per share and was carried out under a pre-arranged Rule 10b5-1 trading plan.

How many CIENA (CIEN) shares does Sheela Kosaraju hold after the reported sale?

Following the sale, Sheela Kosaraju directly holds 92,107 shares of CIENA common stock. The filing specifies that this total includes unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs), reflecting both vested and unvested equity interests.

At what price did Sheela Kosaraju sell CIENA (CIEN) shares in the latest Form 4?

Sheela Kosaraju sold 2,012 shares of CIENA common stock at an average price of $401.71 per share. This price is explicitly reported in the Form 4 as the transaction price per share for the open-market sale on April 1, 2026.

Was the CIENA (CIEN) insider sale by Sheela Kosaraju under a Rule 10b5-1 plan?

Yes. A footnote states the sales were effected pursuant to a Rule 10b5-1 trading plan dated October 14, 2025. Such plans are pre-arranged trading programs designed to allow insiders to sell shares on a scheduled, systematic basis.

What type of equity awards are included in Sheela Kosaraju’s CIENA (CIEN) share total?

The filing notes that the reported 92,107 shares include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs). These awards represent stock-based compensation that vests over time or upon meeting specific performance conditions.

How many CIENA (CIEN) shares did Sheela Kosaraju sell according to the Form 4?

Sheela Kosaraju sold 2,012 shares of CIENA common stock in this transaction. The Form 4 classifies it as an open-market or private sale, coded as “S,” with the transaction direction described as a sell in the filing data.