XGN - Exagen Inc. (XGN) Q4 2021 Earnings Call Transcript March, 22 2022 10:00 PM Exagen Inc. Image source: The Motley Fool. Exagen Inc. (NASDAQ: XGN) Q4 2021 Earnings Call Mar 22, 2022 , 4:30 p.m. ET Operator Continue reading For further details see: Exagen Inc. (XGN) Q4 2021 Earnings Call Transcript