X0306 4 2020-02-22 0001579241 Allegion plc ALLE 0001681759 Meador Shelley A C/O SCHLAGE LOCK COMPANY LLC 11819 N. PENNSYLVANIA STREET CARMEL IN 46032 1 SVP - HR & Communications Ordinary Shares 2020-02-22 4 F 0 97 128.295 D 14958 D Ordinary Shares 2020-02-25 4 M 0 1918 54.125 A 16876 D Ordinary Shares 2020-02-25 4 M 0 2433 57.85 A 19309 D Ordinary Shares 2020-02-25 4 M 0 2207 57.85 A 21516 D Ordinary Shares 2020-02-25 4 S 0 6558 127.069 D 14958 D Stock Option (Right to Buy) 54.125 2020-02-25 4 M 0 1918 0 D 2024-03-11 Ordinary Shares 1918 0 D Stock Option (Right to Buy) 57.85 2020-02-25 4 M 0 2433 0 D 2025-02-20 Ordinary Shares 2433 0 D Stock Option (Right to Buy) 57.85 2020-02-25 4 M 0 2207 0 D 2026-02-16 Ordinary Shares 2207 0 D This transaction was executed in multiple trades ranging from $127.048 to $127.205 per share, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provided 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 regarding this footnote (1) to this Form 4. 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. A stock option that vested in equal annual installments on February 16, 2017, February 16, 2018 and February 16, 2019, and is exercisable. This Form 4 is being filed a day late with regard to the transaction dated 2/22/2020 due to inadvertent administrative error. /s/ Hatsuki Miyata, Attorney-In-Fact 2020-02-26