Michael Weening - 14 Aug 2025 Form 4 Insider Report for CALIX, INC (CALX)

Reporting relationship: President & CEO, Director
Issuer ticker: CALX
Reported as of: 14 Aug 2025
Net transaction value: +$10,274
SEC form: 4
Accepted by SEC: 15 Aug 2025, 16:23:44 UTC
Prior SEC filing: 05 Aug 2025
Next SEC filing: 02 Sep 2025
Source filing: View source filing
Reporting owner signature: /s/ Tom Gemetti as Attorney-in-Fact for Michael Weening

Key filing fact

Michael Weening filed Form 4 for CALIX, INC (CALX) on 15 Aug 2025.

Key facts

This page summarizes Michael Weening's Form 4 filing for CALIX, INC (CALX).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 15 Aug 2025, 16:23.

Change

Previous filing in this sequence was filed on 05 Aug 2025.
Current net transaction value: +$10,274.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001678385 Primary reporting owner

Weening Michael

Relationship: President & CEO, Director
Address: C/O CALIX, INC., 2777 ORCHARD PARKWAY, SAN JOSE
Signature: /s/ Tom Gemetti as Attorney-in-Fact for Michael Weening
Signature date: 15 Aug 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

(CALX) transaction

Common Stock

Award

Transaction value: $10,274
Shares: +305
Change %: +1.9%
Price: $33.69
Shares after: 16,117
Date: 14 Aug 2025
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The reporting person is voluntarily reporting the acquisition of shares of the issuer's common stock pursuant to the Calix, Inc. Amended and Restated Employee Stock Purchase Plan ("ESPP") for the ESPP purchase period of February 15, 2025 through August 14, 2025. This transaction is exempt under Rule 16b-3(c).

Footnote F2

In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the issuer's common stock on February 18, 2025, the first trading day of the purchase period.