EXAGEN INC. — Director's Dealing 2021

May 17, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: EXAGEN INC. (XGN)
CIK: 0001274737
Period of Report: 2021-05-17

Reporting Person: Hazeltine Mark (Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-17	Common Stock	M	1934	$0.26	Acquired	39434	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-17	Stock Option(right to buy)	$0.26	M	1934	Disposed	2028-10-05	Common Stock (2995.0)	Direct

Footnotes

F1: The option is exercisable as it vests. 25% of the shares subject to the option vested on October 5, 2019, and 1/48th of the total number of shares subject to the option vest monthly thereafter, subject to the Reporting Person's continued service to the Issuer through each such vesting date.