# EDGAR Filing Document

**Accession Number:** 0001678385
**File Stem:** 0001406666-25-000030
**Filing Date:** 2025-6
**Character Count:** 6548
**Document Hash:** 8741477608f418e6349792871a5c0242
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001406666-25-000030.hdr.sgml**: 20250603

**ACCESSION NUMBER**: 0001406666-25-000030

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250602

**FILED AS OF DATE**: 20250603

**DATE AS OF CHANGE**: 20250603

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Weening Michael
- **CENTRAL INDEX KEY:** 0001678385

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34674
- **FILM NUMBER:** 251019923

**MAIL ADDRESS:**
- **STREET 1:** 1035 N. MCDOWELL BLVD
- **CITY:** PETALUMA
- **STATE:** CA
- **ZIP:** 94954-1173
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CALIX, INC
- **CENTRAL INDEX KEY:** 0001406666
- **STANDARD INDUSTRIAL CLASSIFICATION:** COMMUNICATION SERVICES, NEC [4899]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 680438710
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 2777 ORCHARD PARKWAY
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95134
- **BUSINESS PHONE:** 408-514-3000

**MAIL ADDRESS:**
- **STREET 1:** 2777 ORCHARD PARKWAY
- **CITY:** SAN JOSE
- **STATE:** CA
- **ZIP:** 95134

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CALIX NETWORKS INC
- **DATE OF NAME CHANGE:** 20070713

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[x] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Weening Michael<br><sub>(Last) (First) (Middle)</sub><br>C/O CALIX, INC.<br>2777 ORCHARD PARKWAY<br><sub>(Street)</sub><br>SAN JOSE, CA 95134<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-06-02 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_President & CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>CALIX, INC [ (CALX) ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2025-06-02 |  | M |  | 80000 | A | $6.38 | 95812 | D |  |
| Common Stock | 2025-06-02 |  | M |  | 20000 | A | $5.95 | 115812 | D |  |
| Common Stock | 2025-06-02 |  | S |  | 100000 | D | 46.5871<sup>(1)</sup> | 15812 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Stock Option (right to buy) | $6.38 | 2025-06-02 |  | M |  |  | 80000 | <sup>(2)</sup> | 2026-06-27 | Common Stock | 80000 | $0 | 0 | D |  |
| Stock Option (right to buy) | $5.95 | 2025-06-02 |  | M |  |  | 20000 | <sup>(3)</sup> | 2027-12-29 | Common Stock | 20000 | $0 | 184000 | D |  |

---

### Footnotes:

(1) The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $46.025 to $47.005, inclusive. Full information on the number of shares sold at each sale price is available upon request.

(2) 100% of the shares subject to the option were fully vested and exercisable on June 27, 2020.

(3) 100% of the shares subject to the option were fully vested and exercisable on January 1, 2021.

**Remarks:**
Sales reported on the Form 4 were effected pursuant to a previously established Rule 10b5-1 trading plan.

**Signature:** /s/ Tom Gemetti as Attorney-in-Fact for Michael Weening  
**Date:** 2025-06-03

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**