Investor AB Disclosure Notice and Press Release

Business Wire, Feb 19, 2002

Business Editors

STOCKHOLM, Sweden--(BUSINESS WIRE)--Feb. 19, 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 Mellstrom 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(a). 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 Mellstrom 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 Borje 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.

(a) Before full dilution but after the agreed conversion of Hans Mellstrom'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.

Investor AB A Public Company

Registration No 556013-8298

SE-103 32 Stockholm, Sweden Visiting address Arsenalsgatan 8c

Tel 46 8 614 20 00 Fax 46 8 614 21 50 www.investorab.com