Not really, it was 5% equity or 2% royalty and according to a Forbes article[1] ABC hadn't asked the two people interviewed for any money. The article also said their source claimed ABC wouldn't be asking for either in upcoming seasons.

[1]http://www.forbes.com/sites/jjcolao/2013/06/13/is-shark-tank...

Not sure if these are still the terms, but here's the original 5% / 2% document:

http://a.abc.com/media/primetime/sharktank/SharkTank3OpenCal...