You seem confused... He isn't trying to prop up the stock price... He is trying to prop up the company's miniscule cash position. The company is out of money and this will keep it going a little bit longer. Because the operations are losing money they are in desperate need for cash right now.
Read the filing... He did not buy this stock in the open market, he received the stock via an offering by the company. In other words the company issued additional shares and received a much need cash infusion.
News 
Market Data 
Discover 
AI
