EXICURE, INC.

Public companies file this within four business days when something important happens that investors should know about before the next quarterly report.

EXICURE, INC. filed this to release information to investors under Regulation FD — usually a press release, conference presentation, or other event the company considers important. 1 EXICURE ANNOUNCES RECEIPT OF NASDAQ DELINQUENCY NOTICE AND FILING OF FORM 10-Q REDWOOD CITY, CA – June 1, 2026 - Exicure, Inc. (Nasdaq: XCUR, the “Company”) announced today that it received a notification letter from the Listing Qualifications Department of The Nasdaq Stock Market LLC (“Nasdaq”) on May 28, 2026 indicating that the Company was not in compli…