X0306 4 2015-11-02 0 0001624899 Steris plc STE 0001235611 TOKICH MICHAEL J C/O CHANCERY HOUSE, 190 WATERSIDE ROAD HAMILTON INDUSTRIAL PARK LEICESTER X0 LE5 1QZ UNITED KINGDOM 0 1 0 0 SVP, CFO & Treasurer Ordinary Shares, ?0.10 Nominal Value 2015-11-02 4 A 0 39128 A 39128 D Ordinary Shares, ?0.10 Nominal Value 2015-11-02 4 A 0 3069 A 3067 I See Footnote Below. Employee Stock Option (right to buy) 27.45 2015-11-02 4 A 0 2000 A 2017-11-01 Ordinary Shares, ?0.10 Nominal Value 2000 2000 D Employee Stock Option (right to buy) 26.41 2015-11-02 4 A 0 13600 A 2018-03-14 Ordinary Shares, ?0.10 Nominal Value 13600 13600 D Employee Stock Option (right to buy) 22.83 2015-11-02 4 A 0 12000 A 2019-05-21 Ordinary Shares, ?0.10 Nominal Value 12000 12000 D Employee Stock Option (right to buy) 31.87 2015-11-02 4 A 0 11000 A 2020-05-20 Ordinary Shares, ?0.10 Nominal Value 11000 11000 D Employee Stock Option (right to buy) 36.09 2015-11-02 4 A 0 14500 A 2021-05-31 Ordinary Shares, ?0.10 Nominal Value 14500 14500 D Employee Stock Option (right to buy) 29.94 2015-11-02 4 A 0 20000 A 2022-05-30 Ordinary Shares, ?0.10 Nominal Value 20000 20000 D Employee Stock Option (right to buy) 45.34 2015-11-02 4 A 0 22000 A 2023-05-31 Ordinary Shares, ?0.10 Nominal Value 22000 22000 D Employee Stock Option (right to buy) 53.52 2015-11-02 4 A 0 28000 A 2024-05-30 Ordinary Shares, ?0.10 Nominal Value 28000 28000 D Employee Stock Option (right to buy) 67.98 2015-11-02 4 A 0 20000 A 2025-08-10 Ordinary Shares, ?0.10 Nominal Value 20000 20000 D 25,500 of these ordinary shares are restricted. The restrictions on these ordinary shares lapse as follows: 7,000 on May 31, 2016; 7,000 on May 31, 2017; 4,500 on May 30, 2018 and 7,000 on May 28, 2019. 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. Represents 3,139.323 units of the STERIS Corporation 401(k) Plan STERIS Stock Fund which equals 3,069 Common share equivalents as of October 29, 2015. This option to purchase 2,000 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 2,000 STERIS common shares for $27.45 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 13,600 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 13,600 STERIS common shares for $26.41 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 12,000 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 12,000 STERIS common shares for $22.83 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 11,000 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 11,000 STERIS common shares for $31.87 per share, subject to the same terms and conditions as the original STERIS stock option. This option to purchase 14,500 New STERIS ordinary shares, which is fully vested, was received in the Merger in exchange for an option to purchase 14,500 STERIS common shares for $36.09 per share, subject to the same terms and conditions as the original STERIS stock option. This option became or will become exercisable as follows: 5,000 on May 30, 2013; 5,000 on May 30, 2014; 5,000 on May 30, 2015 and 5,000 on May 30, 2016. This option was received in the Merger in exchange for an option to purchase 20,000 STERIS common shares for $29.94 per share, subject to the same terms and conditions as the original STERIS stock option. This option became or will become exercisable as follows: 5,500 on May 31, 2014; 5,500 on May 31, 2015; 5,500 on May 31, 2016 and 5,500 on May 31, 2017. This option was received in the Merger in exchange for an option to purchase 22,000 STERIS common shares for $45.34 per share, subject to the same terms and conditions as the original STERIS stock option. This option became or will become exercisable as follows: 7,000 on May 30, 2015; 7,000 on May 30, 2016; 7,000 on May 30, 2017 and 7,000 on May 30, 2018. This option was received in the Merger in exchange for an option to purchase 28,000 STERIS common shares for $53.52 per share, subject to the same terms and conditions as the original STERIS stock option. This option will become exercisable as follows: 5,000 on May 28, 2016; 5,000 on May 28, 2017; 5,000 on May 28, 2018 and 5,000 on May 28, 2019. This option was received in the Merger in exchange for an option to purchase 20,000 STERIS common shares for $67.98 per share, subject to the same terms and conditions as the original STERIS stock option. /s/ Dennis P. Patton, Authorized Representative under Power of Attorney 2015-11-02