CALX Form 144: Proposed sale of 200,000 shares, $13.07M value

CALX filed a Form 144 notice for a proposed sale of 200,000 shares of common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $13,071,475.

Rhea-AI Filing Summary

CALX filed a Form 144 notice for a proposed sale of 200,000 shares of common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $13,071,475. The approximate sale date is 10/30/2025 on the NYSE.

The shares were acquired via a stock option exercise on 10/30/2025 for cash. The filing lists 66,276,473 shares outstanding for the issuer as context.

Recent activity disclosed includes sales over the past three months by Michael Weening: 74,000 shares for $4,218,000 on 08/04/2025, 126,000 for $7,560,000 on 08/28/2025, 24,000 for $1,440,000 on 09/04/2025, 157,990 for $9,803,370 on 09/10/2025, and 18,010 for $1,134,630 on 09/11/2025.

FAQ

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

What did CALX disclose in this Form 144?

A proposed sale of 200,000 shares of common stock with an aggregate market value of $13,071,475, expected on 10/30/2025 via the NYSE.

Who is the broker named in the CALX Form 144?

The filing lists Morgan Stanley Smith Barney LLC, Executive Financial Services, New York.

How were the shares to be sold acquired?

They were acquired via a stock option exercise on 10/30/2025 with cash payment.

How many shares of CALX are outstanding, according to the notice?

The filing lists 66,276,473 shares outstanding for the issuer.

What prior sales are reported in the last three months?

Sales by Michael Weening: 74,000 ($4,218,000) on 08/04/2025; 126,000 ($7,560,000) on 08/28/2025; 24,000 ($1,440,000) on 09/04/2025; 157,990 ($9,803,370) on 09/10/2025; 18,010 ($1,134,630) on 09/11/2025.

On which exchange are the shares listed for this sale?

The notice names the NYSE.

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

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Accepted by SEC EDGAR 10/30/2025 - 04:56 PM EDT Learn about SEC filing dates

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	0001678385
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	CALIX, INC.
SEC File Number	001-34674
Address of Issuer	3155 Olsen Drive, Suite 450 SAN JOSE CALIFORNIA 95117
Phone	(408) 514-3000
Name of Person for Whose Account the Securities are To Be Sold	MICHAEL WEENING
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	Officer
Relationship to Issuer	Director

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	200000	13071475.00	66276473	10/30/2025	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	10/30/2025	Stock Option Exercise	ISSUER			200000	10/30/2025	Cash

* 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
MICHAEL WEENING 3155 Olsen Drive, Suite 450 SAN JOSE CA 95117	Common	09/11/2025	18010	1134630.00
MICHAEL WEENING 3155 Olsen Drive, Suite 450 SAN JOSE CA 95117	Common	09/10/2025	157990	9803370.00
MICHAEL WEENING 3155 Olsen Drive, Suite 450 SAN JOSE CA 95117	Common	09/04/2025	24000	1440000.00
MICHAEL WEENING 3155 Olsen Drive, Suite 450 SAN JOSE CA 95117	Common	08/28/2025	126000	7560000.00
MICHAEL WEENING 3155 Olsen Drive, Suite 450 SAN JOSE CA 95117	Common	08/04/2025	74000	4218000.00

144: Remarks and Signature

Remarks
Date of Notice	10/30/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/28/2025
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	/s/ Michael Weening
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)