By TheStreet Staff What Is Capital Stock?Capital stock represents the total number of shares issued by a company. For a publicly traded company, that is the number of common stock and preferred stock shares issued. Capital stock is referred to as paid-in capital when investors put their money into a company and receive shares in return. The number of common and preferred shares can be found in the shareholders’ equity section of a company’s balance sheet. For listed companies, the balance sheet is part of the quarterly or annual report filed with the Securities and Exchange Commission. Some co…