Disclosure Notice and Press Release

Disclosure Notice and Press Release Stockholm, February 18, 2002 Investor's share of the voting rights and capital in WM-data has changed through the acquisition of 10 million A shares from Hans Mellström and 5 million A shares from Thord Wilkne. Following this acquisition, Investor's holding in WM-data amounts to 15 million A shares and 55.3 million B shares corresponding to 19.1 percent of the share capital and 32.1 percent of the voting rights*. On December 31, 2001, Investor's holding in WM-data amounted to 55.3 million B shares corresponding to 15.0 percent of the capital and 7.6 percent of the votes. The agreement between Hans Mellström and Thord Wilkne covering rights of disposal of A shares has been terminated and is being replaced with a corresponding agreement between Investor and Thord Wilkne. The agreement covers restrictions to sell A shares before the end of 2003 and a right of first refusal between the parties regarding sales of A shares. Investor intends to nominate Börje Ekholm, Executive Vice President and Head of New Investments, and Lars Wedenborn, Executive Vice President and CFO, to the board of WM-data. Jacob Wallenberg declines re-election because of limited time. Thomas Nilsson has also declined re-election. INVESTOR AB For further information: Fredrik Lindgren, Vice President, Investor Relations: +46 8 614 2031, +46 70 624 2031. * Before full dilution but after the agreed conversion of Hans Mellström's remaining 10 million A shares to B shares. After the conversion, there are 30 million A shares outstanding, of which Investor and Thord Wilkne own 15 million each. After full dilution, Investor's holding in WM-data amounts to 17.9 percent of the capital and 31.0 percent of the votes. ------------------------------------------------------------ This information was brought to you by Waymaker http://www.waymaker.net The following files are available for download: http://www.waymaker.net/bitonline/2002/02/18/20020218BIT00080/bit0002.doc http://www.waymaker.net/bitonline/2002/02/18/20020218BIT00080/bit0002.pdf