0001193125-10-057595 Sample Contracts

AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT between DYNAVAX TECHNOLOGIES CORPORATION and SYMPHONY DYNAMO HOLDINGS LLC Dated as of November 9, 2009

Registration Rights Agreement • March 16th, 2010 • Dynavax Technologies Corp • Pharmaceutical preparations • Delaware

• Contract Type
  Registration Rights Agreement
• Filed
  March 16th, 2010
• Company
  Dynavax Technologies Corp
• Industry
  Pharmaceutical preparations
• Jurisdiction
  Delaware

AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of November 9, 2009, by and between DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation (“Dynavax”), and SYMPHONY DYNAMO HOLDINGS LLC, a Delaware limited liability company (together with its permitted successors, assigns and transferees, “Holdings”).

AMENDED AND RESTATED PURCHASE OPTION AGREEMENT by and among DYNAVAX TECHNOLOGIES CORPORATION, SYMPHONY DYNAMO HOLDINGS LLC and SYMPHONY DYNAMO, INC. Dated as of November 9, 2009

Purchase Option Agreement • March 16th, 2010 • Dynavax Technologies Corp • Pharmaceutical preparations • Delaware

• Contract Type
  Purchase Option Agreement
• Filed
  March 16th, 2010
• Company
  Dynavax Technologies Corp
• Industry
  Pharmaceutical preparations
• Jurisdiction
  Delaware

This AMENDED AND RESTATED PURCHASE OPTION AGREEMENT (this “Agreement”) is entered into as of November 9, 2009 (the “Closing Date”) by and among DYNAVAX TECHNOLOGIES CORPORATION, a Delaware corporation (“Dynavax”), SYMPHONY DYNAMO HOLDINGS LLC, a Delaware limited liability company (“Holdings”), and SYMPHONY DYNAMO, INC., a Delaware corporation (“Symphony Dynamo”). Capitalized terms used herein and not defined herein shall have the meanings assigned to such terms in Annex A attached hereto.