Regulatory press release

Tieto: Share repurchases on week 21

Tieto Corporation    Stock
exchange release    25 May
2026 at 03:00 p.m. EET

Tieto: Share repurchases on
week 21

In the Helsinki Stock
Exchange

Date Quantity Average price Total price
18.5.2026 50 000 19,7199 985 995
19.5.2026 40 000 20,4457 817 828
20.5.2026 40 000 20,4009 816 036
21.5.2026 40 000 20,4242 816 968
22.5.2026 40 000 20,4473 817 892
Total in week 21 210 000 20,2606 4 254 719

Tieto now holds a total of
1,020,000 shares
including the shares
repurchased on 22.5.2026

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
listed on the NASDAQ\
exchange\
 in Helsinki and Stockholm\,\
as well as on Oslo Børs.\
www.tieto.com\