Regulatory press release

Tieto: Share repurchases on week 20

Tieto Corporation    Stock
exchange release    18 May
2026 at 03:00 p.m. EET

Tieto: Share repurchases on
week 20

In the Helsinki Stock
Exchange

Date Quantity Average price Total price
11.5.2026 30 000 19,5969 587 907
12.5.2026 40 000 19,3457 773 828
13.5.2026 50 000 19,376 968 800
14.5.2026 0 0 0
15.5.2026 40 000 19,4735 778 940
Total in week 20 160 000 19,4342 3 109 475

Tieto now holds a total of
810,000 shares
including the shares
repurchased on 15.5.2026

The share buybacks are
executed in compliance with
Regulation
No. 596/2014 of the European
Parliament and Council (MAR)
Article 5
and the Commission Delegated
Regulation (EU) 2016/1052.

On behalf of Tieto
Corporation

Nordea Bank Oyj

Sami Huttunen Ilari
Isomäki

For further information,
please contact:

Tommi Järvenpää, Head of
Investor Relations, tel.
+358 40 576 0288,
tommi.jarvenpaa(at)tieto.com

Distribution
NASDAQ Helsinki
NASDAQ Helsinki
Oslo Børs
Principal Media

Tieto is 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 empowring 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
sted on the NASDAQ\
exchange\
 in Helsinki and Stockholm\,\
as well as on Oslo Børs.\
www.tieto.com\