Sandberg, Facebook’s chief operating officer, offloaded her stake at an average of $38 a share, the same price at which the company floated in May 2012.
She has cashed in her stock several times since the flotation, banking some £143million last year, but still leaving her with a sizeable stake worth around $1billion (£650million).
Sheryl Sandberg: Still has a sizeable stake worth around £650million in FacebookFacebook’s stock performed poorly after it listed on the US Nasdaq exchange, falling as low as $17.55 last autumn as traders fretted about meagre advertising revenues from mobile phone users.
But it has since proved it can generate cash from mobile adverts, revealing a profit of £215million in the second quarter of 2013.
The performance has helped take the stock back above its float price to $38.37 by lunchtime on Wall Street yesterday.
Sandberg was a high-flyer at Google, where she served as the search giant’s vice president of global online sales before Facebook founder and chief executive, Mark Zuckerberg, poached her.
