>> If I owned shares in Microsoft, would I have to provide a payslip and a bank statement to Microsoft's bank? Would they do a credit check? And if I sold my sh

>> If I owned shares in Microsoft, would I have to provide a payslip and a bank statement to Microsoft's bank? Would they do a credit check? And if I sold my shares, would Microsoft have to pay back part of a bank loan if the buyer's net worth was less than mine? No, the company would still do its own accounting with its own income, balance, cashflow ledgers... Banks would have to look at the company's net assets to loan against. If the company goes bankrupt, however, and the bank cannot recover the collateral from the company itself, then it should be allowed to pursue the shareholders (who would be liable in proportion to how many shares they hold). Another major difference would be that if the company was negligent or committed a crime, then all shareholders could potentially be held personally liable to some extent. IMO, purely passive investing should not be allowed. The shareholder should be responsible for staying up to date about what their company is doing.