EXAGEN INC. — Director's Dealing 2025

Oct 20, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: EXAGEN INC. (XGN)
CIK: 0001274737
Period of Report: 2025-10-16

Reporting Person: ABALLI JOHN (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-10-16	Common Stock	S	31787	$11.8161	Disposed	714427	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	40401	Indirect

Footnotes

F1: The sale reported on this Form 4 represents shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of Restricted Stock Units ("RSUs"). The sale is mandated by the Issuer's satisfaction of tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.