Exagen(XGN) - 2025 Q4 - Earnings Call Presentation

Patient Focused. Discovery Driven. Accelerating personalized medicine in autoimmune disease Q4 & FY 2025 UPD ATE | MARCH 10, 20 26 Disclaimer 2 Identifying autoimmune disease is a challenge… Ambiguous symptoms Manifestations overlap Tests lack specificity, sensitivity Outdated tech, testing delays High rate of misdiagnosis With rheumatoid arthritis2 ~1M Americans diagnosed with lupus1 ~2M >41M A M E R I C A N S A N A + ANA+: antinuclear antibody positive, first-line screen for autoimmune disease 3 3 1. lupu ...