EXICURE, INC.

Our corporate headquarters moved to Redwood City, California in January 2025, this sublease expires in April 2026. On January 29, 2026, we received a payment demand letter and notice of default from Dren Bio whereby Dren Bio notified us that an event of default has occurred under the sublease for failure to make rent payments and related late charges and interest and demanded that we immediately pay the past due rent and late charges and interest. The Company was formerly located in Chicago, Illinois, where we leased approximately 30,000 square feet of space (the “Chicago Lease”). The Chicago Lease commenced on July 1, 2020, and expires on July 1, 2030. During 2023 and 2024, we subleased approximately 57% of the space through the expiration date. In February 2025, the Company terminated the Chicago Lease and related sublease. For additional information on the legal proceedings in connection with the sublease, see “Item 3 - Legal Proceedings.”