MNKD ($5.15) An example of insider buying that was definitely not a reason to purchase the stock. Insider buying or selling is not always the best indicator. Doing your DD on the company is. If you buy only on insiders buying shares then you could have been in a bad situation w/MNKD as the CEO was buying boatloads of shares directly on the open market. It drove up support in terms of investors & institutions as the stock was near $10 prior to their CRL letter. The key is doing your DD on the company & their products in the pipeline. I bought MNKD briefly for the catalyst & flip but was out 3 wks before the CRL. I did my DD and it was clearly too risky of a stock to play through their PDUFA.