Diamyd Medical to Nasdaq OMX Stockholm Mid Cap Nasdaq OMX Stockholm has decided to move Diamyd Medical (DIAM B) from the Small Cap list to the Mid Cap list. The change is effective as of January 3, 2011. The Mid Cap segment includes companies with a market capitalization of between EUR 150 million and EUR 1 billion. For more information, please contact: Elisabeth Lindner, President and CEO Diamyd Medical AB (publ.) Phone: +46 8 661 0026 For pictures and press material, please contact: Andreas Ericsson, Diamyd Medical AB (publ.) andreas.ericsson@diamyd.com Phone: +46 8 661 0026