Copenhagen, Denmark; February 5, 2008 – In the Stock Exchange Release no. 5 filed on February 4, 2008 titled Major Shareholder Announcement for Genmab A/S (OMX: GEN) it was announced that The Goldman Sachs Group, Inc. had informed us that their ownership in Genmab A/S as of February 1, 2008 consisted of 4,354,405 shares, which was 9.78% of the total shares in the Company. The Goldman Sachs Group, Inc. has subsequently informed us that they had made a miscalculation and under reference to Section 29 of the Danish Securities Trading Act their ownership in Genmab A/S as of February 1, 2008 consists of 3,078,257 shares, which is 6.91% of the total shares in the Company.