CIEN (NYSE: CIEN) Form 144 discloses planned sale of 8,554 shares

Rhea-AI Filing Summary

CIEN security holder has filed a Form 144 notice to sell 8,554 shares of common stock through Morgan Stanley Smith Barney LLC on the NYSE, with an approximate sale date of 12/15/2025. The proposed sale has an aggregate market value of 1,921,741.64.

The shares come from restricted stock acquired from the issuer in two grants: 4,438 shares on 03/21/2025 and 4,116 shares on 04/01/2022, both shown as fully paid on those dates. The issuer had 140,854,735 shares outstanding, providing context for the size of this planned 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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	8554	1921741.64	140854735	12/15/2025	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	03/21/2025	Restricted Stock	Issuer			4438	03/21/2025	Not Applicable
Common	04/01/2022	Restricted Stock	Issuer			4116	04/01/2022	Not Applicable

* 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

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

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 CIEN's latest Form 144 filing disclose?

The Form 144 filing for CIEN discloses a planned sale of 8,554 shares of common stock by a security holder. The shares are to be sold through Morgan Stanley Smith Barney LLC on the NYSE, with an approximate sale date of 12/15/2025 and an aggregate market value of 1,921,741.64.

How many CIEN shares are proposed to be sold and on which exchange?

The Form 144 shows a proposed sale of 8,554 CIEN common shares. The shares are expected to be sold on the NYSE, with Morgan Stanley Smith Barney LLC listed as the broker.

What is the aggregate market value of the CIEN shares in this Form 144?

The filing reports an aggregate market value of 1,921,741.64 for the 8,554 CIEN common shares that are planned to be sold under this Form 144 notice.

When were the CIEN shares to be sold originally acquired?

The Form 144 states that the shares come from restricted stock granted by the issuer. One block of 4,438 shares was acquired on 03/21/2025, and another block of 4,116 shares was acquired on 04/01/2022, both from the issuer.

How many CIEN shares were outstanding according to the Form 144?

The Form 144 lists the issuer as having 140,854,735 shares of common stock outstanding. This figure provides context for the relative size of the planned sale of 8,554 shares.

What is the approximate sale date in CIEN's Form 144 filing?

The notice specifies an approximate date of sale of 12/15/2025 for the 8,554 CIEN common shares covered by this Form 144.