Invitation to the Media and Capital Market in conjunction with the release of Investor AB’s Net Asset Value Report for 2004

Press and Analyst Meeting The meeting will be held in Stockholm, Wednesday, January 19, 2005, at 11:00 a.m. CET. The venue is Investor’s head office at Arsenalsgatan 8C. President and CEO Marcus Wallenberg and CFO Lars Wedenborn will present the Net Asset Value Report for 2004. The presentation material will be published on www.investorab.com after the meeting. Teleconference and Webcast The teleconference will be held on Wednesday, January 19, at 3:00 p.m. CET. To participate, call +44 20 7162 0190, +1 334 323 6203 or +46 8 505 201 14. You can also view and listen to the proceedings of the conference live on Investor’s website www.investorab.com, or afterwards on-demand. To participate in the press and analyst meeting or teleconference, please e-mail Helen Jönsson at helen.jonsson@investorab.com or call +46 8 614 2046. The report is expected to be released around 8:30 a.m. CET the same day. Welcome! Fredrik Lindgren, Vice President, Corporate Communications +46 8 614 2031, Mobile: +46 73 524 2031 Oscar Stege Unger, Investor Relations Manager +46 8 614 2059, +46 70 624 2059