In 2004 when Facebook was just starting out, Mark Zuckerberg turned to his father Edward for initial working capital
Edward, a dentist in Dobbs Ferry New York, loaned his son the money. In return, he was granted 2,000,000 shares of Facebook.
The options were arranged to expire after one year, but Facebook’s board decided that wasn’t fair. It didn’t match the original intent of Edward’s grant. In late 2009, they issued Edward’s company 2,000,000 Class B shares of Facebook.
Today those shares, reflected in Facebook’s S-1, are worth about $60,000,000.