XGN

Exagen Diagnostics, Inc. is a biotechnology company focused on developing advanced diagnostic solutions for autoimmune diseases. It offers the AVISE® testing portfolio, which includes a comprehensive range of rheumatology diagnostics that integrate serology, cell-based assays, proprietary biomarkers, and validated algorithms. Exagen serves healthcare providers and biopharmaceutical companies, aiming to improve diagnostic accuracy and patient outcomes in conditions such as systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). The company operates primarily in the United States from its headquarters in Vista, California.