Thanks, Picon. I had figured out the typo in the original version and assumed it should have read as this one does. That was the basis of my wondering if the officers could possibly have been ignorant of it. That is, apparently they were not directly, or at least provably, involved, but how could they not have known the stock was way over-valued and that something odd was going on? Wouldn't you have been curious in their shoes? At the very least I suspect they profited by keeping silent when their duty was to publicly raise questions.
And, by the way, by the same token we ALL had plenty of opportunity to smell a rat, given the divergence between the financial situation and the stock price! Greed, the father of irrational hope, won out over reason once again!