Nomination Committee for the 2006 Annual General Meeting

In accordance with the decision made by the Annual General Meeting on April 11, 2005, Investor hereby announces the names of the members of the Nomination Committee for the Annual General Meeting in 2006. The committee’s members are: Marcus Wallenberg, Knut and Alice Wallenberg Foundation Lars Isacsson, EB Foundation Peter Rudman, Nordea’s mutual funds Caroline af Ugglas, Skandia Liv Jacob Wallenberg, Chairman of Investor AB’s board The Nomination Committee members together represent approximately 55 percent of the voting rights for all shares in Investor AB. If changes occur among Investor’s major shareholders during the nomination process, the composition of the Nomination Committee will be changed to reflect this. The Annual General Meeting of Investor AB will be held Tuesday, March 21, 2006. Questions that the Nomination Committee will deal with are described on Investor’s website, www.investorab.com, under the heading Corporate Governance. Shareholders who would like to submit proposals to the Nomination Committee can e-mail the committee at the following address: nomination.committee@investorab.com, or write to Investor AB, Nomination Committee, SE-103 32 Stockholm, Sweden. For further information: Fredrik Lindgren, Vice President, Corporate Communications: +46 8 614 2031, +46 735 24 20 31