December 30, 2021

Annual Meeting of Stockholders

South San Francisco, California

January 8, 2021

Annual Meeting of Stockholders

South San Francisco, CA

November 30, 2020

Special Meeting of Stockholders

South San Francisco, California

November 16, 2020

Third Quarter 2020 Financial Results Conference Call

• Webcast
• Recording
• Transcript

September 18, 2020

Resumed Special Meeting of Stockholders

August 31, 2020

Special Meeting of Stockholders

San Francisco, California

August 14, 2020

Second Quarter 2020 Financial Results Conference Call

• Webcast
• Recording
• Transcript

May 15, 2020

First Quarter 2020 Financial Results Conference Call

• Webcast
• Recording
• Transcript

March 30, 2020

Fourth Quarter and Full Year 2019 Financial Results Conference Call

• Webcast
• Recording
• Transcript

March 2, 2020

Special Meeting of Stockholders

South San Francisco, CA

December 20, 2019

Annual Meeting of Stockholders

South San Francisco, CA