Zuckerberg sold $4.47 billion worth of Meta shares last year, before 2021`s tech rout. The stock sales were carried out as part of a pre-set 10b5-1 trading plan, which executives use to allay concerns about insider trading. (Reporting by Eva Mathews, Akash Sriram and Chavi Mehta in Bengaluru; Editing by Devika Syamnath and Aurora Ellis)