CARLSBAD, Calif., Aug. 01, 2024 (GLOBE NEWSWIRE) -- Exagen Inc. (NASDAQ:XGN), a leading provider of autoimmune testing solutions announced today the appointment of Jeffrey G. Black, to the role of Chief Financial Officer (CFO), effective September 1, 2024. Mr. Black replaces Kamal Adawi, who will be stepping down, and John Aballi will act as interim CFO through the end of August. "I sincerely thank Kamal for his leadership and numerous contributions to Exagen over the past decade," said John Aballi, Preside ...