On a message a few minutes ago you referred to an exact ratio of insider purchases plus you gave a historical comparison of sells vs insider buys. Could you provide a link. I have never seen this info available. If what you say is true, the selling is bad, but if insiders are buying that is good! 96.
If I remember correctly, richard russell of Dow Theory newsletters posted the info many time on his website. not hard to see either, examine the insider actions on many stocks: INVN, LOOK, MED, etc.etc.