CALIX, INC — Director's Dealing 2025

Nov 25, 2025

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: CALIX, INC ((CALX))
CIK: 0001406666
Period of Report: 2025-11-16

Reporting Person: Durocher John (COO)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1928	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (right to buy)	$51.83	2033-03-24	Common Stock (200000)		Direct
Stock Option (right to buy)	$51.83	2033-03-24	Common Stock (42555)		Direct
Stock Option (right to buy)	$34.26	2034-02-08	Common Stock (107775)		Direct
Stock Option (right to buy)	$34.26	2034-02-08	Common Stock (56350)		Direct
Stock Option (right to buy)	$39.68	2035-01-31	Common Stock (195000)		Direct
Stock Option (right to buy)	$39.68	2035-01-31	Common Stock (195000)		Direct

Footnotes

F1: 25% of the shares subject to the stock option grant vested on March 24, 2024, with the remainder vesting quarterly thereafter in substantially equal installments over the next 36 months, subject to the reporting person's service through each applicable vesting date. As of November 25, 2025, 125,000 shares subject to the option grant are fully vested and exercisable.

F2: 25% of the shares subject to the stock option grant vested on March 24, 2024, with the remainder vesting quarterly thereafter in substantially equal installments over the next 36 months, subject to the reporting person's service through each applicable vesting date. As of November 25, 2025, 26,597 shares subject to the option grant are fully vested and exercisable.

F3: 25% of the shares subject to the stock option grant vested on February 8, 2025, with the remainder vesting quarterly thereafter in substantially equal installments over the next 36 months, subject to the reporting person's service through each applicable vesting date. As of November 25, 2025, 47,151 shares subject to the option grant are fully vested and exercisable.

F4: 25% of the shares subject to the stock option grant vested on February 8, 2025, with the remainder vesting quarterly thereafter in substantially equal installments over the next 36 months, subject to the reporting person's service through each applicable vesting date. As of November 25, 2025, 17,622 shares subject to the option grant are fully vested and exercisable.

F5: 25% of these stock options will vest on the first anniversary of the grant date. Thereafter, the remainder of these stock options will vest quarterly in substantially equal installments over the next 36 months, subject to Reporting Person's continued service through each vesting date.

F6: The nonqualified stock option award shall vest: (i) as to 25% of the shares of common stock subject to the stock option award, on January 31, 2026; and (ii) as to the remaining 75% of the shares of common stock subject to the stock option award, quarterly in equal installments over 36 months from January 31, 2026, subject to the reporting person's continued employment with Calix through the applicable vesting dates.