I'm sure you're aware that one must consider WHY an insider sells. Ira did sell a boat load of shares and I bet both you and I would have done the same, if we were in his situation: the stock has rocketed and he's retiriing. Perfect timing. Why not exercise and sell; it would be foolish to exercise and hold most of the shares, no?
Most, if not all, of the insider sells are a result of option exercises and then sells. Presumably some of those options were close to expiration given the exercise prices. Most know that it's foolish to hold a huge amount of one stock. Thus exercise and sell. HAIN insiders have been doing just this for years, so there's no need to be "concerned". Granted, Berke's buy was relatively tiny, but he did put up some of his own cash into the stock. Insider buying and selling is less a good indicator than in the past, since most of this activity is related to option grants. Before option grants got out of control, there was more REAL insider buying.
To recap, IMO, no there is no "scam" going on.
Remember: the trend is your friend.