On March 1, 2022, the Board of Directors of Inogen, Inc. appointed Kristin A. Caltrider to serve as the Company's Executive Vice President and Treasurer, effective March 21, 2022. Ms. Caltrider will succeed Michael Sergesketter, interim Executive Vice President, and Treasurer, who, on March 2, 2022, tendered his resignation as an officer of the Company effective upon the date Ms. Caltrider commences employment. Mr. Sergesketter will provide transition services pursuant to the terms of his existing offer letter with the Company through no later than June 24, 2022.

Most recently, Ms. Caltrider, 54, served as the Vice President of Finance at Quidel Corporation, a manufacturer of medical diagnostic products, since June 2014.