Ahlstrom - Changes in company's own shares

REPURCHASE OF OWN SHARES

Ahlstrom                                                  
STOCK EXCHANGE ANNOUNCEMENT                               
04 October 2011                                           
REPURCHASE OF OWN SHARES                                  
Date:                                 04 October 2011     
Exchange transaction:                 Buy                 
Share class:                          AHL1V               
Amount:                                          2421     
Average price /share:                         11,9446  EUR
Highest price /share:                         12,0000  EUR
Lowest price /share:                          11,8000  EUR
Total price:                                 28917,88  EUR
The shares held by (COMPANY NAME) on  04 October 2011     
AHL1V                                           33111     
Ahlstrom                                                  
On behalf of Ahlstrom                                     
Pasi Väisänen                                             
EVLI BANK PLC