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While Mr. Ackman and Mr. Doerr are probably making their charitable gifts in cold hard cash, Mr. Zuckerberg is doing something different. He’s giving away $100 million worth of Facebook shares to Startup: Education, a new foundation he has started and on whose board he will sit. The foundation, in turn, will sell the shares for cash in what’s known as the “secondary market,” a nebulous world where big-time investors buy into companies before they go public — through the back door.
It turns out that there is a robust market for Facebook shares, even though most people can’t buy them. The going price has been about $76 a share, The Financial Times reported last month, implying a market value of $33 billion. Dozens of employees have sold their shares in the secondary market.