Vaisala Corporation: Share Repurchase 1.6.2023 Published: Jun 1, 2023 Stock Exchange Releases VAISALA CORPORATION STOCK EXCHANGE RELEASE 1.6.2023 VAISALA CORPORATION: SHARE REPURCHASE 1.6.2023 In the Helsinki Stock Exchange Trade date 1.6.2023 Bourse trade Buy Share VAIAS Amount 2,100 Shares Average price/ share 42.9466 EUR Total cost 90,187.86 EUR Vaisala Corporation now holds a total of 170 216 shares including the shares repurchased on 1.6.2023 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 1.6.2023 trades