RE: Insider Buying on BCM = Good signInsider option exercises and sales are routine especially when the stock has had a huge run-up like BCM. This should only arouse caution when insiders dump everything even when the stock has been flat or going down. The best insider indicator is open market purchases of size at the same prices the public pays. For a taste of that action, look at the massive insider buying of CHK recently. $10,000,000 buys are noteworthy.