Investor AB invests in WatchMark Corp., USA

Investor AB invests in WatchMark Corp., USA Investor AB, via its wholly owned subsidiary Investor Growth Capital, and Ericsson Venture Partners, the venture capital fund backed by Swedish telecommunications equipment provider Ericsson, led the Series C financing for WatchMark Corp. Existing institutional investors Pequot Capital, Origin Partners and Lucent New Ventures Group also participated in the round. The total financing is USD 26.6 million. WatchMark, a U.S. company headquartered in Bellevue, Washington, is a leader in service-assurance software for wireless telecom service providers and other converged network operators. The company's service- assurance products optimize network capacity, maximize performance quality and reduce operating costs. More than 100 service providers in 30 countries worldwide have licensed WatchMark products. WatchMark will use its new funding to strengthen its leading position in service-assurance software, extend its product offerings, expand into China and South America, and increase its global marketing activities. Read more about WatchMark Corp. on For further information: Torbjörn Wingårdh, Managing Director, Investor Growth Capital, Palo Alto, Calif. Tel: +1 650 543 2100 Fredrik Lindgren, Vice President Investor Relations Tel: +46 8 614 20 31 ------------------------------------------------------------ This information was brought to you by Waymaker The following files are available for download:

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Investor is the leading owner of Nordic-based international companies, founded by the Wallenberg family a hundred years ago. We own significant minority or majority interests in high quality companies. Through our participation on the boards of directors, we work for continuous improvement of the performance of the companies. With our industrial experience, network and financial strength we strive to make our companies best-in-class. Our cash flow allows us to support strategic initiatives in our companies, capture investment opportunities and provide our shareholders with a dividend. Our Core Investments include listed holdings Atlas Copco, SEB, ABB, Ericsson and the operating subsidiary Mölnlycke Health Care.