Investors
Capital Measures
| Date | Measure |
| August 2, 2010 | Conversion of bearer shares to registered shares |
| June 27, 2008 | 1:2 stock split |
| July 6, 1998 | Conversion of DM shares to no-par shares |
| July 1, 1996 | Conversion of per-share price from nom. DM 50 to nom. 5 DM |
| October 17, 1966 | Conversion of per-share price from nom. DM 100 to nom. 50 DM |
| January 30, 1952 | First listing on the Frankfurt Stock Exchange: per-share price of nom. DM 100 |