Stock not looking good, possible short term shorting opportunity

SGLB has been trading in a downward trend for the better part of a few months. Moreover, it has been trading at and around until the 22nd where it made a sharp jump. This can be attributed to a spike in volume. Moreover, this was due to Sigma Labs being awarded a contract with Laser Zentrum. Additionally, on the same day, Mark Cola who is an officer at the company (President and CTO), sold 7,874 shares at $3.25, his total holdings. This can be due to either his decision to potentially leave the company or an action in preparation for a possible crash of this stock. With regards to technical analytics, the RSI indicator has shown a sharp decline in the strength of the stock. The resistance line can also be seen to be gaining some support at its angle of decline. I believe that the stock will continue to depreciate in value and we will be seeing a constant drop. As the last candle can be seen to be trading under the 13EMA, I believe that the stock will not retest the 13EMA anytime soon. I recommend shorting the stock if the next trading day candle exhibits a bearish close. This is only an analysis of what I believe, it is not to be taken as a strategy.