X0306 4 2021-08-25 0001579241 Allegion plc ALLE 0001299140 PETRATIS DAVID D C/O SCHLAGE LOCK COMPANY LLC 11819 N. PENNSYLVANIA STREET CARMEL IN 46032 1 1 Chairman, President & CEO Ordinary Shares 2021-08-25 4 S 0 549 141.0345 D 127305 I See footnote Ordinary Shares 2021-08-25 4 S 0 398 141.5972 D 126907 I See footnote Ordinary Shares 2021-08-25 4 S 0 778 141.1965 D 126129 I See footnote Ordinary Shares 2021-08-25 4 S 0 169 141.6665 D 125960 I See footnote Ordinary Shares 2021-08-25 4 S 0 947 141.304 D 125013 I See footnote Ordinary Shares 146454.483 D All sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted on May 19, 2021 by each of the irrevocable trusts, respectively, for the benefit of each of the Reporting Person's daughters. This transaction was executed in multiple sales ranging from $140.49 to $141.46 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. Reflects securities held by irrevocable trusts for the benefit of each of the Reporting Person's daughters. The Reporting Person disclaims beneficial ownership over the securities held by the trusts, except to the extent of his pecuniary interest therein, if any. This transaction was executed in multiple sales ranging from $141.50 to $141.665 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. This transaction was executed in multiple sales ranging from $140.64 to $141.575 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. This transaction was executed in multiple sales ranging from $141.60 to $141.725 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. This transaction was executed in multiple sales ranging from $140.76 to $141.725 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 2021-08-27