- Vaisala

Vaisala Corporation                 Announcement  May 21, 2012

Share Repurchase  21.5.2012  
In the Helsinki Stock Exchange  

Trade date             2012-05-21 
Bourse trade         Buy 
Share                      VAIAS 
Amount                   300 Shares
Total cost                          4.590,00 EUR
Average price/ share    15,3000 EUR
Highest price/ share    15,30 EUR
Lowest price/ share    15,30 EUR
  

Vaisala Corporation now holds a total of 16.000 shares including the shares repurchased on 21.5.2012. 


On behalf of Vaisala Corporation 
 
Nordea Bank Finland Plc 
 
Petri Simberg            Julius Summanen