Mark Zuckerberg did not sell a single Facebook share in the fourth quarter - the first quarter in more than two years that he took that decision, according to data compiled by Bloomberg. The social networking company’s stock price declined -20% during the quarter, amidst a correction in the broad market.
In September 2017, Zuckerberg announced that he would offload 35 million to 75 million Facebook shares over the following 18 months as part of his pledge to give away almost all of his fortune during his lifetime. He has sold around 30.4 million shares worth $5.6 billion since then.
Facebook was mired in controversies in 2018, regarding issues like inadequate handling/protection of user data against a major incident of hacking and the Cambridge-Analytica scandal.