X0508 4 2023-08-03 0 0001757898 STERIS plc STE 0001300622 Breeden Richard C C/O 70 SIR JOHN ROGERSON'S QUAY DUBLIN L2 2 IRELAND 1 0 0 0 0 Director Stock Option (right to buy) 225.50 2023-08-03 4 A 0 1544 0.00 A 2033-08-03 Ordinary Shares 1544 1544 D Director Stock Option (right to buy) 225.50 2023-08-03 4 A 0 326 76.72 A 2033-08-03 Ordinary Shares 326 1870 D Career Restricted Stock Units 2023-08-03 4 A 0 525 0.00 A Ordinary Shares 525 17486 D Career Restricted Stock Units 2023-08-03 4 A 0 364 225.50 A Ordinary Shares 364 17850 D These nonqualified stock options are fully vested and are exercisable immediately. These nonqualified stock options were issued to the Reporting Person in lieu of fees of $25,000. Each Career Restricted Stock Unit represents the right to receive one STERIS ordinary share six months after the cessation of the Director's Board service. These Career Restricted Stock Units are fully vested immediately. They will be settled in STERIS ordinary shares six months after the cessation of the Director's Board service. These Career Restricted Stock Units were issued to the Reporting Person in lieu of $82,000 in fees. /s/ Ronald E. Snyder, Authorized Representative under Power of Attorney 2023-08-07