Mountain View (dpa) - Company founder Larry Page resigns as CEO of the US Internet giant alphabet. As a successor Sundar Pichai was appointed, who leads so far the daughter Google. This was announced by the group. Pichai will henceforth act both as CEO of Alphabet and Google. In addition, the US online giant announced that co-founder Sergey Brin will retire from the management. However, Page and Brin are to retain their posts on the Board of Directors, which is the parent of the Board of Directors. The personnel changes take place with immediate effect.