Alphabet Inc. (commonly known as
Alphabet, and frequently informally referred to as
Google) is an American multinational
conglomerate created in 2015 as the parent company of
Google and several other companies previously owned by or tied to Google. The company is based in
California and headed by Google's co-founders,
Larry Page and
Sergey Brin, with Page serving as
CEO and Brin as
President. The reorganization of Google into Alphabet was completed on October 2, 2015. Alphabet's portfolio encompasses several industries, including technology, life sciences, investment capital, and research. Some of its subsidiaries include
Google,
Calico,
GV,
Google Capital,
X,
Google Fiber and
Nest Labs. Some of the subsidiaries of Alphabet have altered their names since leaving Google - Google Ventures becoming GV, Google Life Sciences becoming Verily and Google X becoming just X. Following the restructuring Page became CEO of Alphabet while
Sundar Pichai took his position as CEO of Google. Shares of Google's stock have been converted into Alphabet stock, which trade under Google's former ticker symbols of "GOOG" and "GOOGL".