VAISALA CORPORATION STOCK EXCHANGE ANNOUNCEMENT 13.6.2016 SHARE REPURCHASE 13.6.2016 In the Helsinki Stock Exchange Trade date 13.6.2016 Bourse trade BUY Share VAIAS Amount 2.500 shares Total cost 72.838,00 EUR Average price/ share 29,1352 EUR Highest price/ share 29,22 EUR Lowest price/ share 29,00 EUR Vaisala Corporation now holds a total of 240 724 shares including the shares repurchased on 13.6.2016. On behalf of Vaisala Corporation NORDEA BANK FINLAND PLC Janne Sarvikivi Julius Summanen [HUG#2020242]