Consistent insider selling is a strong negative indicatorThe 5 named officers of the company are paid a salary of nearly 1 million US dollars a year each, including cash bonus. There are many other unnamed officers whose salaries are not disclosed, but who likely earn similar salaries. With few exceptions, all officers always sell all shares on every option exercise. Only some shares would need to be sold to pay the strike plus tax. So it clearly indicates that they prefer more cash to holding any shares at all. 1 million US salary, even pre-tax, is plenty to support a large family with a very good lifestyle. I do not know any of their personal circumstances, nor is it any of my business. But there is only one reasonable conclusion to be drawn, which is that none of the officers considers this stock to be the best investment they could make. They know more than anyone here.