For the past thirty days or so, Executives in publicly traded companies have been dumping gigantic amounts of their own company stocks. They must disclose this to the public when it takes place, for obvious reasons.
But the shear volume of insider stock sales over the past couple months seems astonishing to many observers. It seems clear to many observers that the bigshots know "the bottom is falling out" of the economy, and they're getting out with high values on stocks that maybe won't be worth so much if they wait.
