Rj- it is true that significant insider sales presage a positive move by the SP, not always, but most of the time. Take a look an ETF i especially like KNOW. All based on tracking insider sales. Again, nothing is infallible, look at PSEC, large insider sales, SP 30% under value.
But at this little company, say 200K buy McGann...almost guarantees a huge move up in the SP as it likely predicts a significant positive.
I would jump deeper if that were to occur and I know many real longs would too. But McGann will never buy shares as long as he controls the "can opener". He can pop the top for shares for himself with a nice $15M refi.