CALIX, INC — Director's Dealing 2010

Mar 23, 2010

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: CALIX, INC (CALX)
CIK: 0001406666
Period of Report: 2010-03-23

Reporting Person: Weingarth Roger (EVP and COO)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	240853	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Options (right to buy)	$0.49	2013-03-27	Common Stock (80000)		Direct
Employee Stock Options (right to buy)	$0.66	2013-10-14	Common Stock (160)		Direct

Footnotes

F1: Reflects a 2-for-3 reverse stock split of the Issuer's outstanding securities effected immediately prior to the effectiveness of the Issuer's S-1 Registration Statement.

F2: Includes an aggregate of 160,665 restricted stock units ("RSUs"). The Reporting Person is entitled to receive one (1) share of Common Stock for each one (1) RSU upon vesting. 50% of the RSUs will vest on the first day that the Issuer's trading window opens for employees that is more than 180 days following the effective date of the Issuer's initial public offering (the "First Vesting Date"), and the remaining 50% of the RSUs will vest on the first day the trading window opens for employees that is more than 180 days after the First Vesting Date.

F3: 100% of the shares subject to the option are fully vested and exercisable.