CALIX, INC — Director's Dealing 2025

Oct 1, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CALIX, INC ((CALX))
CIK: 0001406666
Period of Report: 2025-09-29

Reporting Person: Russo Carl (Director, 10% Owner)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-09-29	Stock Options (right to buy)	$61.38	A	10329	Acquired	2035-09-29	Common Stock (10329)	Direct

Footnotes

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 (September 29, 2025).