Investor AB

Regulatory Filings • May 10, 2010

Press Release

Stockholm, May 10, 2010

Reminder: Invitation to Investor AB's Capital Markets Day

Representatives from the financial markets and the media are invited to attend Investor's Capital Markets Day in Stockholm, Tuesday, May 18, 2010, from 08:45 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 (see agenda on the next page).

Venue: Grand Hôtel, Stockholm

Attendance: If you would like to attend Investor's Capital Markets Day, please contact Helen Jönsson, phone: +46 8 614 2046 or 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.

Agenda

08:45-09:10	Registration and coffee
09:10-09:15	Grand Hôtel's CEO Marie-Louise Kjellström
09:15-09:40	Börje Ekholm introduces Investor and its strategy
09:40-09:55	Johan Bygge, Financials
09:55-10:10	Lennart Johansson, Head of Operating Investments
10:10-10:45	3 Scandinavia
10:45-11:20	Swedish Orphan Biovitrum
11:20-11:40	Break
11:40-12:15	Johan Forssell, Head of Core Investments
12:15-12:30	Q&A
12:30-13:30	Lunch
13:30-14:20	Stephen Campe, Head of Investor Growth Capital
14:20-14:55	Gambro
14:55-15:30	CaridianBCT
15:30-16:00	Break
16:00-16:35	Lindorff
16:35-17:10	Mölnlycke Health Care
17:10-17:25	Börje Ekholm closing remarks
17:30-19:00	Mingle

Speakers:

Börje Ekholm	President and CEO
Johan Bygge	CFO
Johan Forssell	Head of Core Investments
Lennart Johansson	Head of Operating Investments
Stephen Campe	Head of Investor Growth Capital
Peder Ramel	CEO 3 Scandinavia
Martin Nicklasson	CEO Swedish Orphan Biovitrum
Thomas Glanzmann	CEO Gambro
David Perez	CEO CaridianBCT
Endre Rangnes	CEO Lindorff
Pierre Guyot	CEO Mölnlycke Health Care