HELSINKI, Finland--(BUSINESS WIRE)--Regulatory News: Tieto Corporation (HEX:TIE1V)(STO:TIEN) STOCK EXCHANGE RELEASE 23 June 2015, 10.00 am EET 4 February     Interim report 4/2015 and financial statements bulletin for 2015 (8.00 am EET) Week 8/2016 Annual Report 2015 on Tieto's website 22 March Annual General Meeting 2016 Tieto will publish three interim reports in 2016 26 April   Interim report 1/2016 (8.00 am EET) 22 July Interim report 2/2016 (8.00 am EET) 25 October Interim report 3/2016 (8