Investor AB

Report Publication Announcement • Apr 7, 2010

Press Release

Stockholm, April 7, 2010

Invitation to Investor's Annual General Meeting and release of first quarter results

Investor AB's Annual General Meeting will be held Wednesday, April 14, 2010, at 3:00 pm at the City Conference Centre, Barnhusgatan 12-14, in Stockholm. Registration for the meeting will commence at 1:30 p.m.

Representatives of the news media and analysts are welcome to attend the meeting. There will be opportunities for interviews immediately after the meeting ends. Please sign up for interviews at the press counter when you arrive.

Please note that Investor's interim report for the first quarter will be released for publication on the same day, Wednesday, April 14, 2010 at 12:00 noon. There will not be a separate press conference in connection with the first quarter report.

If you would like to attend Investor AB's Annual General Meeting, please call Helen Jönsson at +46 8 614 2046 or e-mail to the following address: 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

Our press releases can be accessed at www.investorab.com

Investor AB is a Nordic-based industrial holding company founded almost one hundred years ago by the Wallenberg family. Today we have investment activities in Europe, the United States and Asia. The business concept is to generate attractive long-term returns for our shareholders by owning and developing companies with solid potential for value creation. We are an engaged owner and apply experience, knowledge and a unique network to develop listed and unlisted companies to make them best-in-class.