Invitation to Investor AB’s Capital Markets Day 2010

Representatives from the financial markets and the media are invited to attend Investor’s Capital Markets Day in Stockholm, Tuesday, May 18, 2010, from 09.00 a.m. The purpose of the Capital Markets Day is to present Investor’s strategy and activities within its three business areas; Core Investments, Operating Investments and Private Equity Investments. Speakers include Investor’s management and the CEOs of the major Operating Investments. Venue: Grand Hôtel, Stockholm Attendance: If you would like to attend Investor’s Capital Markets Day, please contact Helen Jönsson no later than April 26, 2010: Phone: +46 8 614 2046 helen.jonsson@investorab.com For further information: Oscar Stege Unger, Head of Corporate Communications,Phone +46 8 614 2059, +46 70 624 2059 Magnus Dalhammar, Investor Relations Manager, Phone +46 8 614 2130, +46 735 24 2130