DYNAVAX TECHNOLOGIES CORP — Director's Dealing 2012

Dec 19, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DYNAVAX TECHNOLOGIES CORP (DVAX)
CIK: 0001029142
Period of Report: 2012-12-18

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-12-18	Common Stock	M	19926	$1.50	Acquired	57918	Direct
2012-12-18	Common Stock	F	10451	$2.86	Disposed	47467	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-12-18	Stock Option	$1.50	M	19926	Disposed	2013-01-21	Common Stock (19926)	Direct

Footnotes

F1: On December 18, 2012, Dr. Coffman exercised certain of his outstanding options to purchase 19,926 shares. As consideration for the purchase price, Dr. Coffman delivered 10,451 shares to the Company. No shares were sold in the market in connection with this exercise.

F2: This Stock Option was granted on January 22, 2003 with an expiration of January 21, 2013 and vested over a four-year period after the date of the grant.

F3: Not applicable.