December 30, 2020 • 9:00am PST

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

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