Shares of AstraZeneca Plc (NASDAQ:AZN) have fallen due to rumors about the potential departure of CEO Pascal Soriot. The speculations were triggered by a report in the Mail on Sunday newspaper, which suggested that Soriot may leave as early as next year. No official decisions or timelines have been announced. AstraZeneca has played a significant role in the global pharmaceutical industry, particularly in the development and distribution of COVID-19 vaccines.