Vaisala Corporation: Managers’ Transactions – Voipio, Ville May 12, 2023 Manager Transaction Releases Vaisala Corporation Managers’ Transactions May 12, 2023, at 1:15 p.m. (EEST) Vaisala Corporation: Managers’ Transactions – Voipio, Ville ____________________________________________ Person subject to the notification requirement Name: Voipio, Ville Position: Member of the Board/Deputy member Issuer: Vaisala Oyj LEI: 743700RNDD7KU11HW873 Notification type: INITIAL NOTIFICATION Reference number: 743700RNDD7KU11HW873_20230511195118_35 ____________________________________________ Transaction date: 2023-05-11 Venue: XHEL Instrument type: SHARE ISIN: FI0009900682 Nature of the transaction: RECEIPT OF A SHARE-BASED INCENTIVE Transaction details (1): Volume: 545 Unit price: 0.00 EUR Aggregated transactions (1): Volume: 545 Volume weighted average price: 0.00 EURMore informationPaula Liimatta+358 9 8949 2020, [email protected]Vaisala CorporationDistributionNasdaq HelsinkiKey mediavaisala.comVaisala is a global leader in weather, environmental and industrial measurement. Building on over 85 years of experience, Vaisala provides observations for a better world. We are a reliable partner for customers around the world, offering a comprehensive range of innovative observation and measurement products and services. Headquartered in Finland, Vaisala employs over 2,000 professionals worldwide and is listed on the Nasdaq Helsinki stock exchange. vaisala.com twitter.com/VaisalaGroup linkedin.com/Vaisala