AST SpaceMobile, Inc. (NASDAQ:ASTS) shares are trading higher Tuesday after the company reported fourth-quarter earnings on Monday after the market closed.AST stock is showing upward movement. What’s pushing ASTS stock higher?Fourth-Quarter ResultsAST reported a loss of 26 cents per share, missing the consensus estimate of a 15 cent-loss. In addition, the company reported revenue of $54.30 million, beating the consensus estimate of $41.10 million.The company said it has secured more than $1.2 billion in agg ...