Insider buying is irrelevant in comparison to the 2 things below:
1. Insider selling
LWLG: insiders / the 70 accredited investors who purchased shares via private placement ARE NOT SELLING
Obvious Scam Energous (WATT) - those insiders sell every opportunity they get, and the guy who founded the company quit in January and likely does not own a single share anymore
2. Insider Compensation
LWLG: Lebby made $175k last year, you can't live on that in San Fran. The dudes sole payoff here is the stock / options / warrants he owns.
Obvious Scam Energous (WATT) - CEO makes $2 mil plus a year for a startup company with no revenues. That is wildly excessive. You could add Anavex Life Sciences into this one as well (AVXL)