CEO Leroy Nosbaum brought 27,000 shares at $37.3092 on Oct 28th. That's $1,007,348.40.
1. He can't sell for 6 months. So he has locked up over a million dollars, not just in one asset class, but in one asset - his own company.
2. A CEO can always talk to his head of sales and knows very well what the future sales look like; he sees the orders coming in for the next quarter.
3. Nobody allocates over a million dollars to one particular thing unless the probability of success is extremely high. To have made that kind of money in the past and continue to invest in this manner, he is probably expecting at least a 50% return.
A friend of mine (CEO of an electronics company) and a couple of his officers did this one time, to try to keep the stock price stable by a show of confidence. It didn't work out for them, at least for the next several years.