X0306 4 2020-11-09 0001579241 Allegion plc ALLE 0001589039 Eckersley Timothy P C/O SCHLAGE LOCK CO. LLC 11819 N. PENNSYLVANIA STREET CARMEL IN 46032 1 Sr. VP - Americas Ordinary Shares 2020-11-09 4 S 0 6427 106.25 D 27181.073 D This transaction was executed in multiple sales all at $106.25 per share. 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 and prices at which the transactions were effected regarding this footnote. Includes acquisition of shares through a dividend reinvestment plan. /s/ Hatsuki Miyata, Attorney-In-Fact 2020-11-12