CODEXIS, INC. — Director's Dealing 2013

May 17, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CODEXIS INC (CDXS)
CIK: 0001200375
Period of Report: 2013-05-16

Reporting Person: Tobin Matthew (SVP, Research & Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-16	Common Stock	M	3033	$0.6	Acquired	78707	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-16	Stock Option (Right to Buy)	$0.6	M	3033	Disposed	2013-05-26	Common Stock (3033)	Direct

Footnotes

F1: Option vested with respect to 25% of the shares subject thereto on May 16, 2004, and 1/48th of the shares vested monthly thereafter, such that the option was fully vested and exercisable on May 16, 2007.