Columbus Circle Capital Corp. II announced Board and Committee appointments. Effective February 12, 2026, in connection with the IPO, Garrett Curran, Alberto Alsina Gonzalez, Dr. Adam Back, Matthew Murphy and Marc Spiegel (collectively with Gary Quin, the Directors") were appointed to the board of directors of the Company.

Garrett Curran, Alberto Alsina Gonzalez, Dr. Adam Back, Matthew Murphy and Marc Spiegel are independent directors. Effective February 12, 2026, each of Dr. Back, Mr. Alsina Gonzalez and Mr. Curran was appointed to the Board's Audit Committee, with Mr. Curran serving as chair of the Audit Committee. Each of Dr. Back, Mr. Alsina Gonzalez and Mr. Curran was appointed to the Board's Compensation Committee, with Mr. Alsina Gonzalez serving as chair of the Compensation Committee.

Following the appointment of the Directors, the Board is comprised of three classes. The term of office of the first class of Directors, which consists of Messrs. Alsina Gonzalez, Murphy and Spiegel, will expire at the Company's first annual general meeting of shareholders.

The term of office of the second class of Directors, which consists of Dr. Back and Mr. Curran, will expire at the Company's second annual general meeting of shareholders. The term of office of the third class of Directors, which consists of Mr. Quin, will expire at the Company's third annual general meeting of shareholders.