CALIX, INC — Director's Dealing 2026

Jan 5, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CALIX, INC ((CALX))
CIK: 0001406666
Period of Report: 2026-01-02

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

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-01-02	Employee Stock Options (right to buy)	$53.59	A	11663	Acquired	2036-01-02	Common Stock (11663)	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 (January 2,
2026).