Insiders buying more of their own stock is a bullish signal

There are thousands of reasons for insiders to sell stock, but there's only one reason they'll buy:  They think the stock is going to go up.

After all, insiders know more about their company than outside investors ever could.  If they're buying, there's probably a pretty good reason for it.

Past studies bear this reasoning out.  They show that insider-buying is a bullish signal at both the company-specific and macro-market levels.