Current Report · Items 2.02, 9.01 · 8-K

Exagen Inc.

XGNNASDAQEQUITYCurrent

Results of Operations and Financial Condition

Filed May 11, 2026Accepted May 11, 2026, 8:03 AM EDTCIK 1274737Accession 0001274737-26-000027

Company context

Exagen Inc. (Nasdaq: XGN) is a leading provider of autoimmune diagnostics, committed to transforming care for patients with chronic and debilitating autoimmune conditions. Based in San Diego County, California, Exagen’s mission is to provide clarity in autoimmune disease decision making and improve clinical outcomes through its innovative testing portfolio. The Company’s flagship product, AVISE® CTD, enables clinicians to more effectively diagnose complex autoimmune conditions such as lupus, rheumatoid arthritis, and Sjögren’s syndrome earlier and with greater accuracy. Exagen’s laboratory specializes in the testing of rheumatic diseases, delivering precise and timely results, supported by a full suite of AVISE®-branded tests for disease diagnosis, prognosis, and monitoring. With a focus on research, innovation, education, and patient-centered care, Exagen is dedicated to addressing the ongoing challenges of autoimmune disease management. For more information, please visit Exagen.com or follow @ExagenInc on X.

Current securities

XGNNASDAQ · EQUITY · Current

Recent company filings

Disclosure sections

Items 2.02, 9.01

Select an item to read the extracted section. The as-filed document remains the primary evidence.

Item 2.02Item 2.02 - Results of Operations

Item 2.02. Results of Operations and Financial Condition. On May 11, 2026, the Company reported its financial results for the three months ended March 31, 2026. A copy of the press release issued by the Company is furnished as Exhibit 99.1 to this report. The information furnished with Item 2.02 of this report, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any other filings under the Exchange Act or under the Securities Act of 1933, as amended, whether made before or after the date hereof, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such a filing.