ICON PLC

On February 18, 2025, the Company's Board of Directors authorized an additional share repurchase program under which the Company may repurchase up to $750.0 million of the outstanding ordinary shares of the Company by way of redemption. Along with unutilized amounts under previous authorizations, this authorized the Company as of February 18, 2025 to repurchase up to $1.0 billion worth of ordinary shares.

During March 2025, 1,360,537 shares were redeemed by the Company under our repurchase program for a total consideration of $250.0 million. During June 2025, a further 1,717,181 shares were redeemed by the Company under our repurchase program for a total consideration of $250.0 million.

On July 22, 2025, the Company's Board of Directors authorized a further additional share repurchase program under which the Company could repurchase up to $500.0 million of the outstanding ordinary shares of the Company by way of redemption.

During August and September 2025, 1,426,612 shares were redeemed by the Company under our repurchase program for a total consideration of $250.0 million.

As of October 23, 2025, the Company has remaining authorization to repurchase up to $750.0 million of ordinary shares under the repurchase program.

All ordinary shares redeemed under the repurchase program were canceled in accordance with the constitution of the Company and the nominal value of these shares transferred to other undenominated capital as required by Irish Company law.