Employees own the largest percentage of shares, at 30 percent, according to the chart, while CEO Mark Zuckerberg is second in line, at 24 percent.
Facebook's may indeed be the largest in history, if Sean Parker is right.
One thing is nearly certainly, however: going public will instantly create more than 1,000 millionaires, which means Menlo Park and surrounding towns may see a real boon to local business.
The company has, in fact, been making inroads in Menlo Park, and .
Check out the rest of the ownership details here.