The Dow Jones index closed higher by over 150 points on Wednesday. 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. OPKO Health The Trade: OPKO Health, Inc. (NASDAQ: OPK) Chief Innovation Officer Gary Nabel acquired a total of 216,184 shares an average price of $0.93. To…