All companies must keep adequate records of stock issuances, showing the amount of stock issued, dates issued, and consideration received. A stock ledger—a detailed list of all issuances, cancellations, repurchases and transfers of the company’s stock—can help the company organize this information. Usually, at least while the company is privately held, it is useful for the company to keep copies of all stock certificates issued if certificates are used. If uncertificated securities are used, an accurate and up-to-date stock ledger becomes even more important.