California

In a proxy filing on Thursday with the U.S. Securities and Exchange Commission, Facebook’s board said it will ask shareholders to vote on a proposal that would convert Zuckerberg’s Class B shares into Class A shares if he is no longer in a leadership position. As of June 2, Zuckerberg beneficially owned about 4 million Class A shares and about 419 million Class B shares, collectively representing about 53.8 percent of total outstanding voting power and 14.8 percent of total outstanding economic interests.

The proposed move - to be voted on at Facebook’s annual general meeting on June 20 - is designed to make sure a future Facebook chief’s management powers aren’t limited, the board said.