Investor Name	Invest Money	Lead Investor	Propotion
Atairos	-	Yes	-	Detail
RTP Global	-	-	-	Detail

Announced Date	Round	Money Raised	Investors
Jan 11, 2011	Series D	$ 0.95B	Silver Lake,Andreessen Horowitz,etc.	Detail
Dec 1, 2009	Series B	$ 30M	Accel,New Enterprise Associates,etc.	Detail
Jan 1, 2008	Series A	$ 4.80M	Clear Ventures,New Enterprise Associates	Detail
Jan 1, 2007	Angel	$ 1M	Bradley Keywell,Eric Lefkofsky	Detail
Feb 25, 2011	Series Unknown	$ 16.20M	Kite Ventures,Maveron,etc.	Detail
Apr 18, 2010	Series C	$ 135M	Accel,Battery Ventures,etc.	Detail
Nov 4, 2011	IPO	$ 700M		Detail