It appears on 3 separate occasions george soros has purchased Catering and facility rental from comet ping pong at

01/05/2012 at $5500

01/09/2013 at $4764.25

03/21/2014 at $11600

I'm guessing (trying not to sound shill here) that Soros has funded and hosted events at CPP.

Now the next step is to find what those events were. Good luck