BB BIOTECH AG (SWF:BION) Disclosure Of Shareholdings

BB BIOTECH AG (SWF:BION) Pursuant to article 20 BEHG BB BIOTECH AG, Vordergasse 3, 8200 Schaffhausen and its wholly-owned subsidiary Biotech Target N.V., Snipweg 26, Curaçao, Netherlands Antilles hereby report that they increased their voting rights to more than 25% of the proportion of voting rights of BB BIOTECH AG as at September 25, 2008.

Please find enclosed further details.



LINK: http://hugin.info/130285/R/1255737/273772.pdf

BB BIOTECH AG

ISIN: CH0038389992

Stock Identifier: XSWX.BION