X0407 4 2023-05-31 0 0001757898 STERIS plc STE 0001713987 Tamaro Renato C/O 70 SIR JOHN ROGERSON'S QUAY DUBLIN L2 2 IRELAND 0 1 0 0 V.P. & Corporate Treasurer 0 Ordinary Shares 2023-05-31 4 F 0 175 199.97 D 5954 D Ordinary Shares 2023-05-31 4 A 0 723 0.00 A 6677 D Employee Stock Option (right to buy) 219.97 2023-05-31 4 A 0 2704 0.00 A 2033-05-31 Ordinary Shares 2704 2704 D 175 shares were withheld from the 556 restricted shares that vested on May 31, 2023. These 175 shares represent the value of the taxes required to be withheld pursuant to applicable employment or tax laws, as determined by the Issuer. These 556 ordinary shares were awarded to Mr. Tamaro on May 31, 2019. These vested shares were valued at the NYSE closing market price on May 31, 2023. As of May 31, 2023, 2,791 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 241 on May 31, 2024; 584 on June 3, 2024; 282 on June 3, 2024; 432 on June 3, 2024; 258 on October 1, 2024; 241 on June 2, 2025; 144 on June 2, 2025; 141 on June 2, 2025; 86 on October 1, 2025; 241 on June 1, 2026 and 141 on June 2, 2026. This option becomes exercisable as follows: 676 on May 31, 2024; 676 on June 2, 2025; 676 on June 1, 2026 and 676 on June 1, 2027. /s/ Ronald E. Snyder, Authorized Representative under Power of Attorney 2023-06-02