[144] CALIX, INC. SEC Filing

Rhea-AI Filing Summary

Calix, Inc. (CALX) Form 144 notice: An affiliate proposes to sell 10,000 shares of common stock through Morgan Stanley Smith Barney on 08/28/2025 with an aggregate market value of $600,000. The filing reports the 10,000 shares were acquired on 08/28/2025 by stock option exercise from the issuer and paid in cash on the same date. The issuer shows 65,303,995 shares outstanding. The notice also lists two prior sales by the same person in the past three months: 10,000 shares on 07/23/2025 for $560,000 and 10,000 shares on 06/30/2025 for $520,000. The filing includes the broker's name and address and contains the required seller representation about material nonpublic information.

Positive

• Clear disclosure of broker, share amount, aggregate market value, and acquisition method (stock option exercise).
• Includes prior sales in the past three months, improving transparency about recent insider activity.

Negative

• Insider sales of 10,000 shares on three occasions within three months could be noted by investors as continued insider selling.

Insights

Securities Analyst

TL;DR: Routine insider sale following option exercise; disclosed via broker with recent prior sales noted.

The filing documents a common, prearranged transaction: 10,000 shares to be sold through Morgan Stanley Smith Barney after being acquired by exercise of options the same day. The filing provides clear trade mechanics, broker details, and outstanding share count of 65,303,995, enabling simple dilution context. Prior month sales of equal size are disclosed, which is relevant for monitoring insider activity but, in isolation, do not indicate material change to capitalization or control.

Corporate Governance Expert

TL;DR: Proper Form 144 disclosure completed; represents compliance with insider-sale notice requirements.

The notice includes the seller's representation about absence of undisclosed material information and cites reliance on Rule 144 mechanics. It identifies the nature of acquisition (stock option exercise), payment method (cash), and the executing broker, satisfying procedural governance expectations. Repeated small-dollar insider sales are documented, allowing stakeholders to assess insider disposition patterns, while the filing itself reflects adherence to disclosure protocols.

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	10000	600000.00	65303995	08/28/2025	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	08/28/2025	Stock Option Exercise	ISSUER			10000	08/28/2025	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
CORY J SINDELAR 2777 ORCHARD PARKWAY SAN JOSE CA 95134	Common	07/23/2025	10000	560000.00
CORY J SINDELAR 2777 ORCHARD PARKWAY SAN JOSE CA 95134	Common	06/30/2025	10000	520000.00

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 Calix's Form 144 filed for CALX on 08/28/2025 disclose?

The filing discloses a proposed sale of 10,000 common shares through Morgan Stanley Smith Barney on 08/28/2025 with aggregate market value of $600,000.

How were the 10,000 shares being sold acquired?

The shares were acquired on 08/28/2025 by stock option exercise from the issuer and paid for in cash on that date.

Have there been recent insider sales by the same person?

Yes. The filing reports prior sales by the same person of 10,000 shares on 07/23/2025 for $560,000 and 10,000 shares on 06/30/2025 for $520,000.

What is the issuer's outstanding share count listed in the filing?

The filing lists 65,303,995 shares outstanding.

Which broker is handling the proposed sale?

The broker is Morgan Stanley Smith Barney LLC, Executive Financial Services, 1 New York Plaza 8th Floor, New York, NY 10004.