The men in question would most likely be found guilty of embezzlement, as they were taking funds that belonged to investors and depositing them into their own bank accounts, which is a type of theft that involves the misappropriation of funds that have been entrusted to one's care.
Pilfering refers to the act of stealing , loan sharking involves the practice of lending money at extremely high interest rates, and gambling involves the taking of risks in the hope of gaining something of value.