As I have noticed these days, when the ICO hasnt finished yet and the sale was still on going, the bounty tokens has already been distributed and also unlocked they sell it immediately on forkdelta or etherdelta for a much lower that ICO price, in which it could greatly disturb the sales in tokens. As for you the investor on that token, would you panic when you see that the tokens you own already selling at much lower price?
For me it not need to be panic, instead it is better to buy all those tokens sold from those bounty reward , since these has have a lower price . This scenario is always been happen after ICO distribtion of token , maybe because of necessity of most of the bounty hunters .