Vaisala Oyj

Transaction in Own Shares • Jul 5, 2016

Disclosure 343873

Vaisala - Changes in company's own shares

Vaisala's transfer of company's treasury shares

Vaisala Corporation Stock Exchange Release July 5, 2016 at 2:30 p.m. Vaisala's transfer of company's treasury shares The Board of Directors of Vaisala Corporation has decided to transfer a total of 1,500 Company's series A treasury shares to a person participating in the share based incentive plan. The transfer was done in June 2016 according to the terms and conditions of the Performance Share Plan. Further information Kaarina Muurinen, CFO gsm +358 40 577 5066 Vaisala Corporation Distribution NASDAQ Helsinki Key media www.vaisala.com Vaisala is a global leader in environmental and industrial measurement. Building on 80 years of experience, Vaisala contributes to a better quality of life by providing a comprehensive range of innovative observation and measurement products and services for chosen weather-related and industrial markets. Headquartered in Finland, Vaisala employs approximately 1,600 professionals worldwide and is listed on the NASDAQ Helsinki stock exchange. www.vaisala.com www.twitter.com/VaisalaGroup [HUG#2025716]