SCHEDULE 13G 0002042077 XXXXXXXX LIVE Common 01/30/2026 0001274737 EXAGEN INC. 30068X103 1261 Liberty Way Vista CA 92081 Rule 13d-1(c) Chernett Jorey X1 1231438.00 0.00 1231438.00 0.00 1231438.00 5.4 IN EXAGEN INC. 1261 Liberty Way, Vista, CALIFORNIA, 92081. Jorey Chernett 6222 Indianwood Trail, Bloomfield Hills, MI 48301 US Y 1,231,438 5.43% 1,231,438 0 1,231,438 0 Y N Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Chernett Jorey /s/Jorey Chernett 02/04/2026