LEANING IN PAYS OFF: Sheryl Sandberg Clears $91 Million In Stock Sale

On Friday, COO Sheryl Sandberg took the opportunity to sell $91 million worth of stock, according to SEC filings.

Sandberg still has stock and vesting options worth more than $1 billion, making her one of the world's few self-made billionaire women.

Sandberg earned the money. When she joined Facebook in 2008, the place ran more like a frat house than a corporation. Under her guidance it's grown into a $92 billion company with thousands of employees and fast-growing, multi-billion dollar profits.

Meanwhile, Sandberg's memoir/feminist manifesto Lean In, has been the world's second best-selling non-fiction book for months now.

Insanely impressive.