Utilization of transfer authorization in Investor AB to secure costs for the Company's long-term variable remuneration program

Utilization of transfer authorization in Investor AB to secure costs for the
Company's long-term variable remuneration program

The Annual General Meeting 2009 in Investor decided to authorize the Board to
decide on the transfer of the Company's own shares in order to secure costs for
Investor's long-term variable remuneration program. Investor hereby announces
that the Company's Board has decided to utilize this authorization.

The transfer of previously repurchased shares may take place on the Stockholm
Stock Exchange during the period from August 28, 2009 up until and including the
Annual General Meeting 2010 at a price within the from time to time registered
price interval. Transfers will not be made during the thirty day-periods prior
to ordinary quarterly reports and the year-end report respectively, the day of
the announcement included.

Investor currently owns 4,683,800 of its own B-shares and the maximum number of
shares that may be transferred amounts to 762,000 B-shares.

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 on the Internet.

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.