3 Changes in Stockholders’ Equity
Common Stock
On June 30, 2010, the common stock of the Company amounted to € 22,677,078 (December 31, 2009: € 22,660,557). Through the exercise of 16,521 options issued to management and employees, common stock increased by € 16,521 in the first six months of 2010. Treasury stock amounted to € 9,774 as of June 30, 2010 (December 31, 2009: € 9,774).
Additional Paid-in Capital
On June 30, 2010, additional paid-in capital amounted to € 162,850,697 (December 31, 2009: € 161,631,268). The total increase of € 1,219,429 is due to stock-based compensation in the amount of € 1,021,280. A further increase of € 198,149 arose from the exercise of issued stock options.