Vaisala CorporationManagers' TransactionsApril 30, 2026, at 9:30 a.m. (EEST) Vaisala Oyj - Managers' Transactions - Bresky, Annica ____________________________________________ Person subject to the notification requirementName: Bresky, AnnicaPosition: Member of the Board/Deputy memberIssuer: Vaisala OyjLEI: 743700RNDD7KU11HW873 Notification type: INITIAL NOTIFICATIONReference number: 743700RNDD7KU11HW873_20260428103016_92____________________________________________ Transaction date: 2026-04-27Venue: XHELInstrument type: SHAREISIN: FI0009900682Nature of the transaction: RECEIPT OF A SHARE-BASED INCENTIVE Transaction details(1): Volume: 405 Unit price: 0.00 EUR Aggregated transactions(1): Volume: 405 Volume weighted average price: 0.00 EUR More information: Niina Ala-Luopa, investor relations+358 400 728 957, ir@vaisala.com    Distribution: Nasdaq HelsinkiKey media vaisala.com Vaisala is a global leader in measurement instruments and intelligence for climate action.