Ciena director granted 605 restricted shares

NEVENS THOMAS MICHAEL reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 03/30/2026 - 05:48 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

NEVENS THOMAS MICHAEL reported acquisition or exercise transactions in this Form 4 filing.

Ciena director Thomas Michael Nevens received an equity grant of 605 shares of Common Stock as a stock award, not an open-market purchase. The award consists of restricted stock units that vest in full on the first anniversary of the grant date. After this grant, his direct holdings total 10,027 shares, which include unvested restricted stock units.

Insider Trade Summary

Grant/Award: 605 shares

Grant/Award 1 txn

Insider NEVENS THOMAS MICHAEL

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	605	$0.00	$0.00

Holdings After Transaction: Common Stock — 10,027 shares (Direct)

Footnotes (2)

1. F1. Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.
2. F2. Shares reported include unvested Restricted Stock Units (RSUs).

Key Figures

RSU grant size: 605 shares Grant price per share: $0.00 per share Holdings after grant: 10,027 shares

3 metrics

RSU grant size 605 shares Restricted stock unit award to director on March 26, 2026

Grant price per share $0.00 per share Equity award, not an open-market purchase

Holdings after grant 10,027 shares Direct holdings after award, including unvested RSUs

Key Terms

Restricted stock units (RSUs), unvested Restricted Stock Units (RSUs), Grant, award, or other acquisition

3 terms

Restricted stock units (RSUs) financial

"Restricted stock units (RSUs) vest in full on the first anniversary"

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.

unvested Restricted Stock Units (RSUs) financial

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

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

FAQ

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

What insider transaction did Ciena (CIEN) director Thomas Michael Nevens report?

Ciena director Thomas Michael Nevens reported receiving 605 shares of Common Stock as a stock award. These are restricted stock units granted at no purchase price, representing equity-based compensation rather than an open-market share purchase or sale.

How many Ciena (CIEN) shares does Thomas Michael Nevens hold after this grant?

After the 605-share grant, Thomas Michael Nevens directly holds 10,027 Ciena shares. This figure includes unvested restricted stock units, meaning some of these shares are still subject to vesting conditions over time.

What are the vesting terms of the new Ciena (CIEN) restricted stock units?

The restricted stock units granted to Thomas Michael Nevens vest in full on the first anniversary of the grant date. Until that vesting date, the units remain subject to forfeiture and are treated as unvested equity compensation.

Did Thomas Michael Nevens buy Ciena (CIEN) shares on the open market?

No, the filing shows a grant of 605 restricted stock units at a price of $0.00 per share. This indicates an equity award from the company, not an open-market purchase funded with personal cash.

Are unvested RSUs included in Thomas Michael Nevens’ Ciena (CIEN) holdings?

Yes, the reported 10,027-share figure for Thomas Michael Nevens includes unvested restricted stock units. The footnotes clarify that his total reported shares encompass these unvested RSUs as part of his overall equity position.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

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^*

NEVENS THOMAS MICHAEL

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/26/2026

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	03/26/2026		A		605(1)	A	$0.0	10,027(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. Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant.

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

	By: Michelle Rankin For: T. Michael Nevens	03/27/2026
	** 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)