CyrusOne announced the appointment of company Director David (“Dave”) Ferdman, the Company’s co-founder and former CEO, as interim President effective immediately following the filing of CyrusOne’s Form 10-Q for the fiscal quarter ended June 30, 2021 (the “Transition Date”). This appointment follows the Board of Directors separating with Bruce Duncan as President, and his resignation as a Director of the Company, effective on the Transition Date. Mr. Ferdman will serve until a successor is identified and will remain a member of the Board of Directors.