This section is from the book "Popular Law Library Vol8 Partnership, Private Corporations, Public Corporations", by Albert H. Putney. Also available from Amazon: Popular Law-Dictionary.
A person may become a stockholder either by subscription to the stock or by purchasing the stock from a stockholder. Any natural person sui juris may become a stockholder in either of the above ways. A private corporation can acquire stock in another corporation, except in so far as they are prohibited by statute or by the terms of their charter.