6. Participation rights and options on such rights
As at December 31, the members of the Board of Directors held the following positions in BB Biotech shares:
2023 | 2022 | |||
Dr. Erich Hunziker, Chairman | 957 884 | 957 884 | ||
Dr. Clive Meanwell, Vice-Chairman | 5 163 | 5 163 | ||
Laura Hamill | – | – | ||
Dr. Pearl Huang | – | – | ||
Prof. Dr. Mads Krogsgaard Thomsen | – | – | ||
Dr. Thomas von Planta | 12 000 | 12 000 |
None of the members of the Board of Directors held any options.