The Dow Jones index closed lower by more than 200 points on Thursday. When insiders purchase or sell shares, it indicates their confidence or concern around the company’s prospects. Investors and traders interested in penny stocks can consider this a factor in their overall investment or trading decision.Below is a look at a few recent notable insider transactions for penny stocks. For more, check out Benzinga’s insider transactions platform.CyanotechThe Trade: Cyanotech Corporation (OTC:: CYAN) Director Mi ...