Allegion plc (ALLE) is benefiting from strength across its businesses and accretive acquisitions. Handsome rewards to shareholders add to the stock’s appeal.Based in Dublin, Ireland, Allegion is a leading global provider of security products and solutions for business and domestic purposes. It offers an extensive portfolio of mechanical and electronic security products, including doors and door systems, electronic security products, biometric and mobile access control systems, locks, locksets, exit devices, ...