Managers prefer investors who share similar expectations of their firms' prospects. Instead of taking the distribution of investor types as given, we investigate the question of how the managers may be able to effect a change in the pattern of ownership in a world where outside shareholders hold heterogeneous expectations. Under the requirements that the mechanism is costless to the firm and involves no initial cash transfer among the shareholders, the solution is a menu of securities in the form of sidebets among the shareholders. Ex post, the mechanism allows the high-valuation investors to own a greater proportion of the firm and be rewarded with a greater share of the firm's wealth gains.