DYNAVAX TECHNOLOGIES CORP — Director's Dealing 2013

May 3, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DYNAVAX TECHNOLOGIES CORP (DVAX)
CIK: 0001029142
Period of Report: 2013-05-01

Reporting Person: DINA DINO (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-01	Option (Right to buy)	$2.21	A	100000	Acquired	2023-04-30	Common Stock (100000)	Direct

Footnotes

F1: This option grant will vest at the expiration of Dr. Dina's Consulting Agreement on August 30, 2013.

F2: Not applicable.