Stock Exchange Release STONESOFT SHARE SUBSCRIPTIONS WITH STOCK OPTIONS

Stonesoft Corporation Stock Exchange Release June 20, 2012 at 11:00 a.m.

A total of 8 000 shares have been subscribed with Stonesoft Option Program 2008. The share subscriptions were based on the Option Program 2008C options. According to the terms of the Option Program 2008, the subscription price per share was EUR 0.30.

After the increase the share capital is divided into 63 645 482 shares. The new shares were admitted to trading on the NASDAQ OMX Stock Exchange Ltd together with the existing shares as of June 20, 2012. The new shares will provide the shareholders with full shareholder rights.

The Stonesoft Option Program 2008 is based on the resolutions of the Board of Directors on May 6, 2008 and June 17, 2008, based on the authorization granted by the Annual General Meeting on April 23, 2008. The terms of the program have been published by a previous stock exchange release.

Stonesoft Corporation

Ilkka Hiidenheimo
Chief Executive Officer


For further information, please contact:

Mikael Nyberg
CFO
Tel. +358 9 476711


Distribution:

NASDAQ OMX Helsinki Ltd
www.stonesoft.com

Wed Jun 20 10:35:00 EEST 2012

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