X0306 4 2021-10-25 0001579241 Allegion plc ALLE 0001589049 Shannon Patrick S C/O SCHLAGE LOCK COMPANY LLC 11819 N. PENNSYLVANIA STREET CARMEL IN 46032 1 Sr. VP & CFO Ordinary Shares 2021-10-25 4 M 0 3826 54.125 A 71995.654 D Ordinary Shares 2021-10-25 4 S 0 3826 131.4967 D 68169.654 D Ordinary Shares 2021-10-26 4 M 0 5760 54.125 A 73929.654 D Ordinary Shares 2021-10-26 4 M 0 10487 57.85 A 84416.654 D Ordinary Shares 2021-10-26 4 S 0 16247 131.19 D 68169.654 D Stock Option (Right to Buy) 54.125 2021-10-25 4 M 0 3826 0 D 2024-03-11 Ordinary Shares 3826 5760 D Stock Option (Right to Buy) 54.125 2021-10-26 4 M 0 5760 0 D 2024-03-11 Ordinary Shares 5760 0 D Stock Option (Right to Buy) 57.85 2021-10-26 4 M 0 10487 0 D 2025-02-20 Ordinary Shares 10487 0 D This transaction was executed in multiple sales ranging from $131.255 to $131.55 per share, inclusive. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple sales ranging from $131.00 to $131.73 per share, inclusive. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. Includes acquisition of shares through a dividend reinvestment plan. A stock option that vested in equal annual installments on March 11, 2015, March 11, 2016 and March 11, 2017, and is exercisable. A stock option that vested in equal annual installments on February 20, 2016, February 20, 2017 and February 20, 2018, and is exercisable. /s/ Hatsuki Miyata, Attorney-In-Fact 2021-10-27