Investor Name	Invest Money	Lead Investor	Propotion

Announced Date	Round	Money Raised	Investors
Apr 16, 2007	Series B	$ 20.50M	Alloy Ventures,Austin Ventures,etc.	Detail
Jun 29, 2010	Series D	$ 13.60M	Alloy Ventures,Austin Ventures,etc.	Detail
May 30, 2011	Series E	$ 40M	Alloy Ventures,August Capital,etc.	Detail
Jul 5, 2006	Series A	$ 13M	Austin Ventures,North Bridge Venture Partners & Growth Equity	Detail
Apr 21, 2021	Private Equity（PE）	$ 500M	Koch Strategic Platforms	Detail
Dec 17, 2008	Series C	$ 17.50M	Alloy Ventures,Austin Ventures,etc.	Detail
Nov 7, 2013	IPO	$ 54.50M		Detail