DYNAVAX TECHNOLOGIES CORP — Director's Dealing 2012

Oct 9, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DYNAVAX TECHNOLOGIES CORP (DVAX)
CIK: 0001029142
Period of Report: 2012-10-05

Reporting Person: COFFMAN ROBERT (Chief Scientific Officer & VP)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-10-05	Stock Option	M	2251	$1.50	Acquired	43576	Direct
2012-10-05	Common Stock	F	695	$4.86	Disposed	42881	Direct
2012-10-05	Common Stock	S	1556	$4.86	Disposed	41325	Direct
2012-10-05	Common Stock	S	3111	$4.96	Disposed	0	Indirect
2012-10-05	Common Stock	S	3333	$4.96	Disposed	37992	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-10-05	Stock Option	$1.50	M	2251	Disposed	2013-01-22	Common Stock (2251)	Direct

Footnotes

F1: The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan.

F2: Not applicable.

F3: Represents shares held by Robert Coffman and Susan Coffman.

F4: Shares being exercised pursuant to options vested.