Redfin, the popular real estate listings site, has filed for IPO which suggests that it will raise $100 million. Greylock Partners is the largest shareholder with a 12.4 percent stake, followed by Madrona Ventures with 11.4 percent, Tiger Global at 10.5 percent and Draper Fisher Jurvetson at 10.2 percent.<br />
Here's when Redfin is likely to debut.