Change of the number of shares and votes in Karo Bio AB (publ)

STOCKHOLM, July 31, 2015 - Karo Bio AB (publ) today announced that the company’s
total number of shares as per July 31, 2015 amounts to 939,658,066 shares,
corresponding to an equal number of votes. The increase in the number of shares
and votes results from the recently completed share issues of 249,914,516
shares. Both issues were announced on April 29, 2015.

For further information, please contact:
Henrik Palm, CFO, telephone +46 70 540 4014 or email henrik.palm@karobio.se

About Karo Bio
Karo Bio is a development company focused on broadening its operations to
include projects and products closer to market. Karo Bio is based in Huddinge,
Sweden and is listed on Nasdaq Stockholm.

Karo Bio publishes this information in accordance with the Swedish Securities
Markets Act and/or the Swedish Financial Instruments Trading Act. The
information was submitted for publication on July 31, 2015 at 8:30 CET.

This press release is also available on www.karobio.se and
www.newsroom.cision.com.