Carl Russo - 25 Feb 2026 Form 4 Insider Report for CALIX, INC ((CALX))

Reporting relationship: Director, 10%+ Owner
Issuer ticker: (CALX)
Reported as of: 25 Feb 2026
Net transaction value: +$126,300
SEC form: 4
Accepted by SEC: 26 Feb 2026, 16:17:26 UTC
Prior SEC filing: 04 Feb 2026
Next SEC filing: 31 Mar 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 26 Feb 2026.

Key facts

This page summarizes Carl Russo's Form 4 filing for CALIX, INC ((CALX)).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 26 Feb 2026, 16:17.

Change

Previous filing in this sequence was filed on 04 Feb 2026.
Current net transaction value: +$126,300.

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: 26 Feb 2026

Reported non-derivative transactions

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

(CALX) transaction

Common Stock

Options Exercise

Transaction value: $126,300
Shares: +10,000
Change %: +0.25%
Price: $12.63
Shares after: 3,993,070
Date: 25 Feb 2026
Ownership: Direct

(CALX) holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 13,782
Date: 25 Feb 2026
Ownership: See Footnote
Footnotes: F1

(CALX) holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,669,188
Date: 25 Feb 2026
Ownership: See Footnote
Footnotes: F2

Reported derivative securities

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

(CALX) transaction Derivative

Stock Option (right to buy)

Options Exercise

Transaction value: $0
Shares: -10,000
Change %: -1.8%
Price: $0.000000
Shares after: 560,000
Date: 25 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 10,000
Exercise price: $12.63
Footnotes: F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Shares held by Equanimous Investments. The managing members of Equanimous Investments are Carl Russo and Tim Pasquinelli. These individuals may be deemed to have shared voting and investment power over the shares held by Equanimous Investments. Each of these individuals disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.

Footnote F2

Shares held by The Crescentico Trust, Carl Russo, Trustee.

Footnote F3

100% of the shares subject to the option were fully vested and exercisable on May 22, 2024.