purely by definition, if preferred stock is issued by a corporation, any corporation, the transaction has to be shown on the company's Balance Sheet in the Stockholders' Equity section.
"Preferred Shares issued by a company that are outstanding are always and always on the Balance Sheet in the Shareholders Equity section."
Our CPA, Auditor, and 2 SEC attorneys feel otherwise. Preferred shares that are not converted are not shown on balance sheets. If you are a CPA, go brush up on your continued education requirements... you are rusty.