After 5 years back at the helm, Zillow Group co-founder Rich Barton steps down as CEO. Former COO Jeremy Wacksman takes the reins as the company charges past 'Portal 1.0'
Rich Barton and his wife, Dr. Sarah Barton, have signed onto 'The Giving Pledge,' a philanthropic effort by billionaires to give away the 'majority' of their wealth to charity