The effect of changes in ownership structure on performance: Evidence from the thrift industry

Restrictions on stock ownership may harm a company's performance, because restrictions prevent owners from choosing an optimal structure. We examine the stock-price performance and ownership structure of a sample of thrift institutions that converted from mutual to stock ownership. We find that after conversion and the expiration of ownership-structure restrictions, firm performance improves significantly, and the portions of the firm owned by managers and the firm's employee stock ownership plan increase. Changes in performance are positively associated with changes in ownership by managers, but negatively associated with changes in ownership by employee stock ownership plans.