Disclosure in SEB

Disclosure notice Stockholm, March 30, 2000 Investor AB´s total ownership in SEB today amounts to 70,803,680 A shares, which represent 10.0 percent of the share capital in the company and 10.5 percent of the voting rights. According to a disclosure notice from January 13, 2000 Investor's holding in SEB amounted to 67,689,032 A shares. This represented 9.6 percent of the share capital in the company and 10.0 percent of the voting rights. INVESTOR AB For further information: Nils Ingvar Lundin, Managing Director, Corporate Relations, +46 8 614 20 49, +46 70 514 20 49 Per Spångberg, Vice president, Investor Relations, +46 8 614 20 31, +46 70 624 20 31 ------------------------------------------------------------ Please visit http://www.bit.se for further information The following files are available for download: http://www.bit.se/bitonline/2000/03/30/20000330BIT00260/bit0001.doc http://www.bit.se/bitonline/2000/03/30/20000330BIT00260/bit0002.pdf