Vaisala - Changes in company's own shares

SHARE REPURCHASE 15.5.2012

Helsinki, Finland, 2012-05-15 17:38 CEST (GLOBE NEWSWIRE) -- 

Vaisala Corporation       ANNOUNCEMENT       15.5.2012
SHARE REPURCHASE  15.5.2012                           
In the Helsinki Stock Exchange                        
Trade date                       15.5.2012            
Bourse trade              Buy                         
Share                     VAIAS                       
Amount                               3.950  Shares    
Total cost                       63.139,50  EUR       
Average price/ share               15,9847  EUR       
Highest price/ share                 16,00  EUR       
Lowest price/ share                  15,90  EUR       
Vaisala Corporation now holds a total of 13.700 shares
including the shares repurchased on 15.5.2012.        
On behalf of Vaisala Corporation                      
Nordea Bank Finland Plc                               
Petri Simberg             Julius Summanen