X0306 4 2015-11-02 0 0001624899 Steris plc STE 0001237389 WILSON LOYAL W C/O CHANCERY HOUSE, 190 WATERSIDE ROAD HAMILTON INDUSTRIAL PARK LEICESTER X0 LE5 1QZ UNITED KINGDOM 1 0 0 0 Ordinary Shares, ?0.10 Nominal Value 2015-11-02 4 A 0 25068 A 25068 D Director Stock Option (right to buy) 27.68 2015-11-02 4 A 0 3387 A 2017-07-27 Ordinary Shares, ?0.10 Nominal Value 3387 3387 D Director Stock Option (right to buy) 34.17 2015-11-02 4 A 0 2744 A 2018-07-31 Ordinary Shares, ?0.10 Nominal Value 2744 2744 D Director Stock Option (right to buy) 28.08 2015-11-02 4 A 0 3609 A 2019-07-31 Ordinary Shares, ?0.10 Nominal Value 3609 3609 D Director Stock Option (right to buy) 32.34 2015-11-02 4 A 0 3133 A 2020-08-04 Ordinary Shares, ?0.10 Nominal Value 3133 3133 D Director Stock Option (right to buy) 31.61 2015-11-02 4 A 0 3121 A 2021-08-03 Ordinary Shares, ?0.10 Nominal Value 3121 3121 D Director Stock Option (right to buy) 32.36 2015-11-02 4 A 0 3218 A 2022-08-03 Ordinary Shares, ?0.10 Nominal Value 3218 3218 D Director Stock Option (right to buy) 64.05 2015-11-02 4 A 0 4110 A 2025-08-31 Ordinary Shares, ?0.10 Nominal Value 4110 4110 D Career Restricted Stock Units 2015-11-02 4 A 0 10502 0.00 A Ordinary Shares, ?0.10 Nominal Value 10502 10502 D Represents ordinary shares of STERIS plc ("New STERIS") acquired pursuant to merger of a wholly-owned subsidiary of New STERIS with and into STERIS Corporation ("STERIS"), with STERIS surviving the merger as a wholly-owned subsidiary of New STERIS (the "Merger"), in exchange for common shares of STERIS, which was consummated simultaneous with and conditioned on New STERIS' acquisition of Synergy Health plc by commencing a "recommended offer" under English law. At the effective time of the Merger, each STERIS common share was cancelled and converted into the right to receive one New STERIS ordinary share. This option to purchase 3,387 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,387 STERIS common shares for $27.68 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 2,744 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 2,744 STERIS common shares for $34.17 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 3,609 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,609 STERIS common shares for $28.08 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 3,133 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,133 STERIS common shares for $32.34 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 3,121 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,121 STERIS common shares for $31.61 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 3,218 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 3,218 STERIS common shares for $32.36 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 4,110 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 4,110 STERIS common shares for $64.05 per share, subject to the same terms and conditions as the original STERIS stock option. At the effective time of the Merger, each STERIS career restricted stock unit was cancelled and converted to a New STERIS career restricted stock unit, subject to the same terms and conditions that were applicable to the original STERIS career restricted stock unit. These New STERIS career restricted stock units are fully vested and will be settled in New STERIS ordinary shares six months after the cessation of the Director's Board service. /s/ Dennis P. Patton, Authorized Representative under Power of Attorney 2015-11-02