CALIX, INC — Director's Dealing 2025

Nov 4, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CALIX, INC ((CALX))
CIK: 0001406666
Period of Report: 2025-10-30

Reporting Person: Weening Michael (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-30	Common Stock	M	200000	$7.84	Acquired	216117	Direct
2025-10-30	Common Stock	S	150000	$64.628	Disposed	66117	Direct
2025-10-30	Common Stock	S	50000	$67.5456	Disposed	16117	Direct
2025-11-03	Common Stock	M	74000	$7.84	Acquired	90117	Direct
2025-11-03	Common Stock	S	74000	$67.4203	Disposed	16117	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-10-30	Stock Option (right to buy)	$7.84	M	200000	Disposed	2029-11-27	Common Stock (200000)	Direct
2025-11-03	Stock Option (right to buy)	$7.84	M	74000	Disposed	2029-11-27	Common Stock (74000)	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $64.55 to $65.00, inclusive. Full information on the number of shares sold at each sale price is available upon request.

F2: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $67.35 to $67.93, inclusive. Full information on the number of shares sold at each sale price is available upon request.

F3: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $66.245 to $69.450, inclusive. Full information on the number of shares sold at each sale price is available upon request.

F4: 100% of the shares subject to the option were fully vested and exercisable on November 27, 2023.