Changes to Investor AB’s Management Group

Investor AB has the pleasure of announcing the appointment of two new members to its Management Group: Johan Forssell and Lennart Johansson. Johan Forssell was employed by Investor in 1995 and has been responsible for Investor’s research and analyst department for core holdings since 2003. He will contribute additional knowledge about core holdings and analytical capacity to the Management Group. Lennart Johansson has been CEO of b-business partners, a venture capital company of which Investor is majority owner, since 2003. He will head a newly established function, Business Development, which aims to search for and evaluate new investment opportunities outside Investor’s existing investment units. As of January 1, 2006, the following persons will be members of Investor’s Management Group: Börje Ekholm – President and Chief Executive Officer; Lars Wedenborn – Chief Financial Officer and Executive Vice President; Adine Grate Axén – Core Holdings: Governance and Corporate Finance/Equity Capital Markets; Johan Forssell – Core Holdings: Analysis and Valuation; Henry E. Gooss – Investor Growth Capital; Lennart Johansson – Business Development. In addition, Fredrik Hillelson is leaving Investor’s Management Group to focus full-time on his role as President and CEO of Novare, a group offering services in the human resources field (see separate press release). For further information: Fredrik Lindgren, Vice President, Corporate Communications: +46 8 614 20 31, +46 735 24 20 31