One of the highest-profile and most successful women in tech is no longer with us.

The COO at Meta, formerly known as Facebook, is stepping down. The social media company has a board made up of people.

According to Forbes, she is the second richest woman in tech after Meg Whitman. Forbes says that she is worth an estimated $3.2 billion.

One of the rare non-CEOs and non-founders to become a billionaire is Facebook's COO.

While corporate executives tend to hold on to the majority of their shares as a show of confidence in their companies, Sandberg has been an aggressive and consistent seller of Facebook stock.

According to research firms that track the sales, over 75% of her shares have been sold through regular share sale programs. She sold over 22 million shares for more than $1 billion. Depending on the treatment of options and restricted stock sales, the total could actually be higher.

Her sales over the past decade make her one of the biggest insiders at the company.

There were 48 million restricted stock units, options and shares that she acquired. She sold 22 million of the remaining 28 million through a pre- schedule selling program.

As Facebook shares soared, Sandberg cashed out shares at a variety of prices. In the company's initial public offering, the stock price was $38 per share and peaked at $382 per share in September.

Over the past decade, her average stock sale price was $79.10 per share.

Other tech tycoons have shown off their yachts, private jets and beach homes. According to media reports, she moved into a 9,200- square-foot home in Menlo Park, California, that features a wine room, gym, waterfall and solar panels on the roof.

Some of the money from her sales has been given to charity. She donated $107 million to her donor-advised fund last year. She said she would support programs that increase opportunities for women and girls.

She made total reportable gifts of 6.9 million shares, with 2.8 million shares going to her donor-advised fund and 2.1 million going to trusts for beneficiaries, according to her spokesman. According to Smart Insider, the COO gave away $484 million in shares.

She said the decision to leave Meta would allow her to focus more on her work.

Sandberg has contributed to Democratic candidates and hosted Democratic fundraisers.

She holds 1.5 million shares in a trust that has a market value of $290 million. Some of the unvested restricted stock she has could vest before she leaves.

Meta shares were traded on Wednesday.