Theory suggests that controlling shareholders can influence firm value through both shared benefits creation and private benefits consumption. Using negotiated control-block transfers from 31 countries, we look beyond ownership concentration and investigate how controlling shareholder heterogeneity influences the relative importance of these two effects. We document that a control transfer precipitates positive firm outcomes particularly when the vendor has maintained control over an extended period and the acquirer displays a strong incentive to engage in restructuring. In such cases, we observe a sustained positive price reaction, more focused corporate investments, lower leverage, higher operating efficiency, and superior long-term performance.