Top spender is Jason Rubin, President of THQ.
Runner-up is Turtle Rock Studios, who're working on a shooter to be published by THQ (previous made Counter-Strike and Left 4 Dead).
Closing in at $2 million. Most profitable Humble Bundle ended at 5 or 6 million. Don't think the Humble Store people disclose the profit split. Default has 60% going to THQ.
and completely unrelated (but absolutely related) here's this new gameplay trailer for Company of Heroes 2.