Tieto: Managers' transactions - Dahl Steensen

Tieto CorporationSTOCK EXCHANGE RELEASE1 May 2026 11:45 a.m. EEST Person subject to the notification requirement Name: Dahl Steensen, Marianne Position: Member of the Board/Deputy member Issuer: Tieto Corporation LEI: 549300EW2KM4KROKQV31 Notification type: INITIAL NOTIFICATION Reference number: 549300EW2KM4KROKQV31_20260430161303_68 Transaction date: 30 April 2026 Venue: XHEL Instrument type: SHARE ISIN: FI0009000277 Nature of the transaction: RECEIPT OF A SHARE-BASED INCENTIVE Transaction details (1): Volume: 3 332 Unit price: EUR 0.00 Aggregated transactions (1): Volume: 3 332 Volume weighted average price: EUR 0.00 For further information, please contact: Tommi Järvenpää, Head of Investor Relations, tel. +358 40 576 0288, tommi.jarvenpaa(at)tieto.com Tieto Corporation DISTRIBUTION NASDAQ Helsinki NASDAQ Stockholm Oslo Børs Principal Media Tietois a leading software and digital engineering services company with global market reach and capabilities. We provide customers across different industries with mission-critical solutions through our specialized software businesses Tieto Caretech, Tieto Banktech and Tieto Indtech as well as Tieto Tech Consulting business. Our around 14 000 talented vertical software, design, cloud and AI experts are dedicated to empowering our customers to succeed and innovate with latest technology. Tieto's annual revenue is approximately EUR 2 billion. The company's shares are listed on the NASDAQ exchange in Helsinki and Stockholm, as well as on Oslo Børs.www.tieto.com