Large shareholders may play an important role for firm policies and performance, but identifying an effect empirically presents a challenge due to the endogeneity of ownership structures. However, unlike other blockholders, individuals tend to hold blocks in corporations that are located close...

We develop an empirical framework that allows us to analyze the effects of heterogeneity across large shareholders, using a new blockholder-firm panel data set in which we can track all unique blockholders among large public U.S. firms. We find statistically significant and economically...