DYNAVAX TECHNOLOGIES CORP — Director's Dealing 2012

Jan 27, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DYNAVAX TECHNOLOGIES CORP (DVAX)
CIK: 0001029142
Period of Report: 2012-01-25

Reporting Person: DINA DINO (Director, CEO and Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-01-25	Common Stock	M	199998	$3.00	Acquired	495771	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-01-25	Stock Options	$3.00	M	33333	Disposed	2012-03-20	Common Stock (33333)	Direct
2012-01-25	Stock Options	$3.00	M	33333	Disposed	2012-03-20	Common Stock (33333)	Direct
2012-01-25	Stock Options	$3.00	M	66666	Disposed	2012-03-20	Common Stock (66666)	Direct
2012-01-25	Stock Options	$3.00	M	33333	Disposed	2012-03-20	Common Stock (33333)	Direct
2012-01-25	Stock Options	$3.00	M	33333	Disposed	2012-03-20	Common Stock (33333)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	203214	Indirect

Footnotes

F1: Represents shares held by Dino Dina 1999 Revocable Trust, of which Dr. Dina is trustee

F2: On January 25, 2012, Dr. Dina exercised all of his then-outstanding options with an expiry date of March 20, 2012 for cash. No shares were sold in the market in connection with this exercise.