X0609 4 2026-06-02 0 0001757898 STERIS plc STE 0001651806 Carestio Daniel A true 70 SIR JOHN ROGERSON'S QUAY DUBLIN 2 L2 D02 R296 IRELAND 1 1 0 0 President and CEO 0 Ordinary Shares 2026-06-02 4 A 0 23736 0 A 73578 D Ordinary Shares 2026-06-02 4 F 0 995 209.76 D 72583 D Employee Stock Option (right to buy) 230.74 2026-06-02 4 A 0 82740 0 A 2036-06-02 Ordinary Shares 82740 82740 D As of June 2, 2026, 50,113 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 5,937 on June 3, 2026; 4,283 on June 4, 2026; 7,912 on June 2, 2027; 5,937 on June 3, 2027; 4,283 on June 4, 2027; 7,912 on June 2, 2028; 5,937 on June 5, 2028 and 7,912 on June 4, 2029. 995 shares were withheld from the 2,369 restricted shares that vested on June 2, 2026. These 995 shares represent the value of the taxes required to be withheld pursuant to applicable employment or tax laws, as determined by the Issuer. These vested shares were valued at the NYSE closing market price on June 2, 2026. This option becomes exercisable as follows: 20,685 on June 2, 2027, 20,685 on June 2, 2028, 20,685 on June 4, 2029 and 20,685 on June 3, 2030. /s/ John P. Ubbing, Authorized Representative under Power of Attorney 2026-06-04