Vaisala Corporation: Managers’ Transactions - Öistämö, Kai Mar 10, 2021 Manager Transaction Releases Vaisala Corporation Managers’ Transactions March 10, 2021 at 2:45 p.m. (EET) Vaisala Corporation: Managers’ Transactions - Öistämö, Kai Vaisala Oyj - Managers' Transactions____________________________________________ Person subject to the notification requirementName: Öistämö, KaiPosition: Chief Executive OfficerIssuer: Vaisala OyjLEI: 743700RNDD7KU11HW873 Notification type: INITIAL NOTIFICATIONReference number: 743700RNDD7KU11HW873_20210308092457_4____________________________________________ Transaction date: 2021-03-10Venue not applicableInstrument type: SHAREISIN: FI0009900682Nature of the transaction: RECEIPT OF A SHARE-BASED INCENTIVE OR REMUNERATION Transaction details(1): Volume: 4,000 Unit price: Aggregated transactions(1): Volume: 4,000 Volume weighted average price: More information Kaarina Muurinen, CFO Tel. +358 40 577 5066 Distribution Nasdaq Helsinki Key media vaisala.com Vaisala is a global leader in environmental and industrial measurement. Building on over 80 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 1,900 professionals worldwide and is listed on the Nasdaq Helsinki stock exchange. vaisala.com twitter.com/VaisalaGroup