Carl Russo - 02 Jan 2026 Form 4 Insider Report for CALIX, INC (CALX)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: CALX
Reported as of: 02 Jan 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Jan 2026, 16:28:09 UTC
Prior SEC filing: 25 Nov 2025
Next SEC filing: 08 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Tom Gemetti as Attorney-in-Fact for Carl Russo

Key filing fact

Carl Russo filed Form 4 for CALIX, INC (CALX) on 05 Jan 2026.

Key facts

This page summarizes Carl Russo's Form 4 filing for CALIX, INC (CALX).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 05 Jan 2026, 16:28.

Change

Previous filing in this sequence was filed on 25 Nov 2025.
Current net transaction value: $0.

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 0001483757 Primary reporting owner

Russo Carl

Relationship: Director, 10%+ Owner
Address: C/O CALIX, INC., 3155 OLSEN DRIVE, SUITE 450, SAN JOSE
Signature: /s/ Tom Gemetti as Attorney-in-Fact for Carl Russo
Signature date: 05 Jan 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

(CALX) transaction Derivative

Employee Stock Options (right to buy)

Award

Transaction value: $0
Shares: +11,663
Change %
Price: $0.000000
Shares after: 11,663
Date: 02 Jan 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 11,663
Exercise price: $53.59
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

The automatically awarded option vests and becomes exercisable with respect to 25% of the shares of common stock underlying the option on each anniversary of the date of grant (January 2, 2026).