Tieto Oyj - Changes in company's own shares

Acquisition of own shares by Tieto on 12 May 2009

Tieto Corporation Stock Exchange Announcement 12 May 2009 6.30 pm EET

Date:                                    12 May 2009
Exchange transaction:                    Buy

Share class:                             TIE1V
Amount:                                  18000
Average price /share:                    EUR         10,05221
Highest price /share:                    EUR         10,24
Lowest price /share:                     EUR         9,95
Total price:                             EUR         180939,78

The number of shares held by the company
including the shares acquired on         12 May 2009

TIE1V                                    413390


Tieto Corporation


On behalf of Tieto Corporation



Teemu Koivisto

EVLI BANK PLC