Uber's co-founder and former CEO Travis Kalanick continues to cash out his stake in the ride-hailing company, selling off close to $166 million worth of shares this week. The ousted chief executive has sold off a little more than $2 billion worth of Uber stock since the company's post-IPO lockup period in early November, an act that has rapidly liquidated his stake in the company. Kalanick holds a little more than 21 million shares in the company as of December 13th, which is less than a quarter of his original stake in the company.