Dictionary.com defines a stock ledger as the capital stock records of a corporation. Stock ledgers are also often referred to as stock books. These records are permanent, and contain the personal information of each stockholder along with details of each share they own.
LegalZoom states that stock ledgers should be updated each time a transaction dealing with a share occurs. The website states that each ledger can be uniquely notated, but it should always exhibit important details such as the performers of a stock transfer and how much stock was exchanged. The site also emphasizes that the name, contact number and addresses of each shareholder should be listed in a stock ledger.