DYNAVAX TECHNOLOGIES CORP — Director's Dealing 2012

Sep 14, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DYNAVAX TECHNOLOGIES CORP (DVAX)
CIK: 0001029142
Period of Report: 2012-09-14

Reporting Person: Lew Jennifer (VP, Finance & PAO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-09-14	Common Stock	M	18750	$0.54	Acquired	21082	Direct
2012-09-14	Common Stock	S	18750	$4.53	Disposed	2332	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-09-14	Stock Option	$0.54	M	18750	Disposed	2019-03-09	Common Stock (18750)	Direct

Footnotes

F1: Shares being exercised pursuant to options vested.

F2: Not applicable.