Xilio Therapeutics, Inc.

of this Current Report on Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exch

. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On January

. Financial Statements and Exhibits. (d) Exhibits. Exhibit Number Description 99.1 Press release issued by Xilio Therapeutics, Inc. on January 8, 2026 104 Cover