CIEN insider files Form 144 to sell 34,000 NYSE-listed shares

Rhea-AI Filing Summary

Ciena (CIEN) received a Form 144 notice indicating a proposed sale of 34,000 shares of common stock through Goldman Sachs & Co. LLC, with an aggregate market value of $5,736,140. The shares are listed on the NYSE with an approximate sale date of 10/15/2025. Shares outstanding were 141,055,908.

The seller previously acquired shares as compensation via restricted stock units: 17,799 on 12/20/2023, 10,416 on 03/20/2024, and 5,785 on 06/20/2024. Over the past three months, the filer executed multiple sales of 3,400 shares per transaction on several dates, with disclosed gross proceeds for each sale.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	Goldman Sachs & Co. LLC 200 West Street New York NY 10282	34000	5736140	141055908	10/15/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	12/20/2023	Acquired as compensation -- Restricted Stock Units	Issuer			17799	12/20/2023	Compensation
Common Stock	03/20/2024	Acquired as compensation -- Restricted Stock Units	Issuer			10416	03/20/2024	Compensation
Common Stock	06/20/2024	Acquired as compensation -- Restricted Stock Units	Issuer			5785	06/20/2024	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	09/02/2025	3400	317034.02
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	08/15/2025	3400	306440.98
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	07/15/2025	3400	278866.98
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	09/15/2025	3400	459386.92
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	10/01/2025	3400	514272.1
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	07/15/2025	3400	280282.74
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	09/15/2025	3400	466790.42
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	08/15/2025	3400	309197.7
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	10/01/2025	3400	504887.08
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	09/02/2025	3400	314920.58
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	08/01/2025	3400	300207.08
Gary B. Smith 7035 Ridge Road Hanover MD 21076	Common Stock	08/01/2025	3400	303765.52

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Ciena (CIEN)'s Form 144 disclose?

A proposed sale of 34,000 shares of common stock with an aggregate market value of $5,736,140, to be sold on the NYSE.

Who is the broker for the CIEN Form 144 sale?

The broker is Goldman Sachs & Co. LLC.

When is the approximate sale date in the CIEN Form 144?

The approximate sale date is 10/15/2025.

How many Ciena shares are outstanding per the notice?

Shares outstanding were 141,055,908.

How were the CIEN shares to be sold originally acquired?

As restricted stock units granted as compensation: 17,799 on 12/20/2023, 10,416 on 03/20/2024, and 5,785 on 06/20/2024.

What prior sales are listed in the CIEN Form 144?

Multiple transactions of 3,400 shares each across recent dates with disclosed gross proceeds for each sale.

On which exchange will the CIEN shares be sold?

The shares are listed for sale on the NYSE.