Common Contracts

Form of Company Support Agreement

Care Capital III LLC • February 23rd, 2018 • Biological products, (no disgnostic substances) • Delaware

• Company
  Care Capital III LLC
• Filed
  February 23rd, 2018
• Industry
  Biological products, (no disgnostic substances)
• Jurisdiction
  Delaware

Reference is made in this letter (this “Agreement”) to the Agreement and Plan of Merger and Reorganization, dated as of the date hereof (as it may be amended, modified or amended and restated from time to time, the “Merger Agreement”), by and among Aviragen Therapeutics, Inc., a Delaware corporation (“Parent”), Agora Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Subsidiary”), and Vaxart, Inc., a Delaware corporation (the “Company”). Capitalized or other terms used and not defined herein but defined in the Merger Agreement shall have the meanings ascribed to them in the Merger Agreement. In order to induce Parent and the Company to enter into the Merger Agreement, and understanding that each of Parent and the Company are relying on the agreements set forth herein, [name of stockholder], [an individual][entity type] (the “Securityholder”), hereby agrees as follows:

Form of Parent Support Agreement

Aviragen Therapeutics, Inc. • October 30th, 2017 • Biological products, (no disgnostic substances) • Delaware

• Company
  Aviragen Therapeutics, Inc.
• Filed
  October 30th, 2017
• Industry
  Biological products, (no disgnostic substances)
• Jurisdiction
  Delaware

Reference is made in this letter (this “Agreement”) to the Agreement and Plan of Merger and Reorganization, dated as of the date hereof (as it may be amended, modified or amended and restated from time to time, the “Merger Agreement”), by and among Aviragen Therapeutics, Inc., a Delaware corporation (“Parent”), Agora Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“Merger Subsidiary”), and Vaxart, Inc., a Delaware corporation (the “Company”). Capitalized or other terms used and not defined herein but defined in the Merger Agreement shall have the meanings ascribed to them in the Merger Agreement. In order to induce Parent and the Company to enter into the Merger Agreement, and understanding that each of Parent and the Company are relying on the agreements set forth herein, [_____________], an individual (the “Securityholder”), hereby agrees as follows: