X0306 4 2019-02-27 0001579241 Allegion plc ALLE 0001589039 Eckersley Timothy P C/O SCHLAGE LOCK CO., LLC 11819 N. PENNSYLVANIA STREET CARMEL IN 46032 1 Sr. VP & President - Americas Ordinary Shares 2019-02-27 4 S 0 11175 88.95 D 27643.245 D This transaction was executed in multiple sales ranging from $88.95 to $89.00 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 and prices at which the transactions were effected regarding this footnote. /s/ Hatsuki Miyata, Attorney-In-Fact 2019-03-01