CALIX, INC — Director's Dealing 2025

Feb 4, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CALIX, INC ((CALX))
CIK: 0001406666
Period of Report: 2025-01-31

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

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-01-31	Stock Option (right to buy)	$34.26	A	125737	Acquired	2034-02-08	Common Stock (125737)	Direct
2025-01-31	Stock Option (right to buy)	$34.26	A	80325	Acquired	2034-02-08	Common Stock (80325)	Direct
2025-01-31	Stock Option (right to buy)	$39.68	A	217500	Acquired	2035-01-31	Common Stock (217500)	Direct

Footnotes

F1: On February 8, 2024, the reporting person was granted a performance-based stock option to purchase 262,500 shares of common stock. On January 31, 2025, the Talent and Compensation Committee (the Committee) of the Board of Directors of Calix, Inc. (Calix) determined that the performance criteria governing 47.9% of the grant had been achieved, resulting in 125,737 shares of common stock remaining subject to the option. The option vests: (i) as to 25% of the shares of common stock subject to the option, on February 8, 2025; and (ii) as to the remaining 75% of the shares of common stock subject to the option, quarterly in equal installments over 36 months from February 8, 2025, subject to continued employment with Calix through the applicable vesting dates.

F2: On February 8, 2024, the reporting person was granted a performance-based option to purchase 87,500 shares of common stock. On January 31, 2025, the Committee determined that the performance criteria governing 91.8% of the grant had been achieved, resulting in 80,325 shares of common stock remaining subject to the option. The option vests: (i) as to 25% of the shares of common stock subject to the option, on February 8, 2025; and (ii) as to the remaining 75% of the shares of common stock subject to the option, quarterly in equal installments over 36 months from February 8, 2025, subject to continued employment with Calix through the applicable vesting dates.

F3: The option vests: (i) as to 25% of the shares of common stock subject to the option, on January 31, 2026; and (ii) as to the remaining 75% of the shares of common stock subject to the option, quarterly in equal installments over 36 months from January 31, 2026, subject to continued employment with Calix through the applicable vesting dates.