| At 31.12.2009 | At 31.12.2008 | ||
| Structure | Significant shareholders > 5% | 13.6% of shares | 12.7% of shares |
| 10 largest shareholders | 39.6% of shares | 46.9% of shares | |
| 100 largest shareholders | 57.5% of shares | 63.2% of shares | |
| Origin | Switzerland | 64.1% of shares | 76.5% of shares |
| Elsewhere | 35.9% of shares | 23.5% of shares |