Tieto Oyj - Changes in company's own shares

Acquisition of own shares by Tieto on 18 May 2009

Tieto Corporation Stock Exchange Announcement 18 May 2009 6.30 pm EET

Date:                                    18 May 2009
Exchange transaction:                    Buy

Share class:                             TIE1V
Amount:                                  18000
Average price /share:                    EUR         10,16924
Highest price /share:                    EUR         10,25
Lowest price /share:                     EUR         9,89
Total price:                             EUR         183046,32

The number of shares held by the company
including the shares acquired on         18 May 2009

TIE1V                                    485390


Tieto Corporation


On behalf of Tieto Corporation



Teemu Koivisto

EVLI BANK PLC