Vaisala Oyj: SHARE REPURCHASE 2.6.2023 Published: Jun 2, 2023 Stock Exchange Releases VAISALA CORPORATION STOCK EXCHANGE RELEASE 2.6.2023 VAISALA CORPORATION: SHARE REPURCHASE 2.6.2023 In the Helsinki Stock Exchange Trade date 2.6.2023 Bourse trade Buy Share VAIAS Amount 1 000 Shares Average price/ share 44,0726 EUR Total cost 44 072,60 EUR Vaisala Corporation now holds a total of 171 216 shares including the shares repurchased on 2.6.2023 On behalf of Vaisala Corporation Nordea Bank Oyj Janne Sarvikivi Sami Huttunen Additional information Paula Liimatta tel +358 9 8949 2020, [email protected] www.vaisala.com Attachment VAIAS 2.6.2023 trades