X0508 4 2025-03-04 0001579241 Allegion plc ALLE 0001915040 Ilardi David S. C/O SCHLAGE LOCK COMPANY LLC 11819 N. PENNSYLVANIA STREET CARMEL IN 46032 1 SVP - Allegion Americas 0 Ordinary Shares 2025-03-04 4 M 0 789 57.85 A 10414 D Ordinary Shares 2025-03-04 4 S 0 789 125.28 D 9625 D Stock Option (Right to Buy) 57.85 2025-03-04 4 M 0 789 0 D 2026-02-16 Ordinary Shares 789 0 D This transaction was executed in multiple sales ranging from $124.93 to $125.64 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 any security holder of the issuer full information regarding the number of shares sold at each separate price within the range set forth in this footnote. A stock option that vested in equal annual installments on February 16, 2017, February 16, 2018 and February 16, 2019, and is exercisable. /s/ Jeffrey N. Braun, Attorney-in-Fact 2025-03-06