Google co-founders Larry Page and Sergey Brin are stepping down from their roles within the parent company, Alphabet.

Sundar Pichai, who has been leading Google as CEO for more than four years, will stay in his role and also become CEO of Alphabet. Page was Alphabet’s CEO,

while Brin was its president.

Both have been noticeably absent from Google events in the past year. Both founders promised they plan to stay involved as board members.

The pair hold more than 50% voting shares of Alphabet.