Notification in accordance with the Finnish Securities Market Act Chapter 2 § 9: Investor AB increased holding in Wärtsilä Corporation

Wärtsilä Corporation, Flagging notifications 27 April 2012 at 14:00 UTC+2

Wärtsilä has been informed that Investor AB through its subsidiary Aktiebolaget Navigare purchased 1,974,000 Wärtsilä shares on 26 April 2012. The joint ownership of Fiskars Group and Investor AB now exceeds 1/5 (20%) of the company’s votes. Following the transaction Fiskars Group and Investor AB together own 40,317,168 shares or 20.44% of Wärtsilä’s share capital and votes.