GM typically releases its annual proxy in April. GM Chairman and CEO Mary Barra was the highest-paid executive in the Detroit Three in 2016, earning $22.58 million. That was down from the $28.59 million she made in 2015. Her 2016 pay included a $2 million base salary, up from $1.75 million in 2015, and $13 million in stock awards, according to GM's preliminary filing with the U.S. Securities and Exchange Commission.