243 2013 2012 2011 Authorized share capital - 250 250 Par value in cents per share - 25 25 Preferred shares Preferred shares A Preferred shares B Number of shares  (thousands) Total amount Number of shares  (thousands) Total amount At January 1, 2011 211,680 53 69,030 17 Shares issued - - 41,042 11 At December 31, 2011 211,680 53 110,072 28 Shares issued - - 8,021 2 At December 31, 2012 211,680 53 118,093 30 Shares issued - - - - Conversion (211,680) (53) (118,093) (30) At December 31, 2013 ­ ­ ­ ­ All issued common shares and common shares B each have a nominal value of EUR 0.12 and are fully paid up. Repayment of capital  can only be initiated by the Executive Board, is subject to approval of the Supervisory Board and must be resolved by the General  Meeting of Shareholders. Moreover, repayment on common shares B needs approval of the related shareholders. Refer to 'Other  information' for further information on dividend rights. Vereniging Aegon, based in The Hague, the Netherlands, holds all of the issued common shares B. In the years 2003 through 2010, 69,030,000 class B preferred shares were issued under these option rights. In March 2011,  Vereniging Aegon exercised its option rights to purchase in aggregate 41,042,000 class B preferred shares at par value. It did this  to correct dilution caused by Aegon’s issuance of shares conducted under Aegon’s US Shelf Registration, which comprised the sale  of 173,604,912 common shares of Aegon N.V. at a price of EUR 5.20 per share in March 2011. In August 2012 and October 2012,  Vereniging Aegon exercised its option rights to purchase in aggregate 8,021,000 class B Preferred Shares at par value. It did this to  correct dilution caused by Aegon’s issuance of shares on June 15, 2012, being the final dividend 2011 in the form of stock dividend, and  its issuance of shares on September 15, 2012, being the interim dividend 2012 in the form of stock dividend. In July 2013, Vereniging  Aegon exercised its option rights to purchase in aggregate 12,691,745 common shares B at market value. It did this to prevent dilution  caused by Aegon’s issuance of shares on May 1, 2013, May 16, 2013, in connection with the Long Term Incentive Plans for senior  management and the issuance of shares on June 14, 2013, being the final dividend 2012 in the form of stock-dividend.  With regard to granted share appreciation rights and option rights and their valuation refer to note 14. 32.2 Share premium 2013 2012 2011 At January 1 8,780 8,787 7,906 Additions - - 881 Repayment (400) - - Share dividend (5) (7) - At December 31 8,375 8,780 8,787 Share premium relating to: - Common shares 8,375 6,728 6,735 - Preferred shares - 2,052 2,052 Total share premium 8,375 8,780 8,787