Press release

Stockholm, October 11, 2011

Invitation to the Media and Capital Market in conjunction with the release of Investor AB's Interim Report for January-September 2011

Press and Analyst Meeting
The meeting will be held in Stockholm on Tuesday, October 18, 2011, at 10:30 a.m. CET at Arsenalsgatan 8C. President and CEO Börje Ekholm and CFO Susanne Ekblom will present the Interim Report for January-September 2011.

The press conference will be in English and webcasted through our website www.investorab.com where you also can ask questions. If you prefer to listen to the presentation, please call +44 203 043 24 36, +1 866 458 40 87 or +46 8 505 598 53.

The presentation material will be published on our website after the meeting, where you can also view and listen to the proceedings of the conference afterwards on-demand.

To participate in the press and analyst meeting, please e-mail Emma Kjellgren at emma.kjellgren@investorab.com or call +46 8 614 2047.
The report is expected to be released around 8:15 a.m. CET the same day.

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 73 524 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.