X0609 4 2026-06-02 0 0001757898 STERIS plc STE 0001578804 Zangerle John Adam true 70 SIR JOHN ROGERSON'S QUAY DUBLIN 2 L2 D02 R296 IRELAND 0 1 0 0 Sr. VP, Gen Counsel, and Sec. 0 Ordinary Shares 2026-06-02 4 A 0 4359 0 A 37691 D Ordinary Shares 2026-06-02 4 F 0 247 209.76 D 37444 D Employee Stock Option (right to buy) 230.74 2026-06-02 4 A 0 15200 0 A 2036-06-02 Ordinary Shares 15200 15200 D As of June 2, 2026, 10,867 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows:1,252 on June 3, 2026; 1,376 on June 4, 2026; 1,453 on June 2, 2027; 1,252 on June 3, 2027; 1,376 on June 4, 2027; 1,453 on June 2, 2028; 1,252 on June 5, 2028 and 1,453 on June 4, 2029. 247 shares were withheld from the 846 restricted shares that vested on June 2, 2026. These 247 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: 3,800 on June 2, 2027, 3,800 on June 2, 2028, 3,800 on June 4, 2029 and 3,800 on June 3, 2030. /s/ John P. Ubbing, Authorized Representative under Power of Attorney 2026-06-04