Ciena (CIEN) holder files Rule 144 to sell 11,929 shares on NYSE

Rhea-AI Filing Summary

Ciena Corporation insider plans to sell common stock under Rule 144. A holder has filed to potentially sell 11,929 shares of Ciena common stock through Morgan Stanley Smith Barney LLC on or after 01/12/2026 on the NYSE. The filing lists an aggregate market value of $2,750,350.24 for these shares. It also notes that these 11,929 shares were acquired on 12/20/2025 from the issuer as restricted stock units, market stock units, and performance stock units. The filing states that the person signing does not know of any undisclosed material adverse information about Ciena’s current or future operations.

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	11929	2750350.24	140854735	01/12/2026	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	12/20/2025	Restricted Stock Units, Market Stock Units, and Performance Stock Units	Issuer			11929	12/20/2025	N/A

* 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

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 the Ciena (CIEN) Rule 144 filing disclose?

The filing discloses an intention by a Ciena shareholder to sell 11,929 shares of Ciena common stock on or after 01/12/2026 under Rule 144 on the NYSE.

How many Ciena (CIEN) shares are covered by this planned Rule 144 sale and what is their market value?

The notice covers 11,929 common shares of Ciena with an indicated aggregate market value of $2,750,350.24.

How were the Ciena (CIEN) shares in this Rule 144 notice acquired?

The 11,929 shares were acquired on 12/20/2025 from the issuer through restricted stock units, market stock units, and performance stock units.

Which broker is handling the planned Ciena (CIEN) Rule 144 sale?

The planned sale is listed through Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, New York.

How many Ciena (CIEN) shares are outstanding according to this notice?

The filing reports 140,854,735 Ciena common shares outstanding at the time referenced.

What representation does the seller make in this Ciena (CIEN) Rule 144 notice?

The seller represents that they do not know any material adverse information about Ciena’s current or prospective operations that has not been publicly disclosed.