As a hedge fund manager, Goldman Sachs trader and bank chief executive, Steven T. Mnuchin has long been a member of the financial elite.
Yet even on Wall Street he was not widely known before Donald J. Trumpchose him to be his campaign fund-raiser last spring.
Now, Mr. Mnuchin is on a path to become the first hedge fund manager to head the Treasury. As befitting that closed-door world of finance, Mr. Mnuchin’s record shows a willingness to take on risks and a penchant for secrecy that members of both parties expect will be a focus of his Senate confirmation hearing.
A case in point is a Delaware company that he owns, Steven T. Mnuchin Inc., whose existence has not been reported outside of official records.