Notice of Annual General Meeting of Shareholders, March 21, 2006

In accordance with the listing agreement with Stockholmsbörsen AB (the Stockholm Stock Exchange), Investor AB hereby also announces, by issuing a press release, the content of the notice concerning Investor’s Annual General Meeting on March 21, 2006. Attachment: Notice of Investor’s Annual General Meeting 2006. For further information: Fredrik Lindgren, Vice President, Corporate Communications: +46 8 614 20 31, +46 735 24 20 31