SAN FRANCISCO (BLOOMBERG) - Google Chief Executive Officer Sundar Pichai received a US$100.5 million (S$137.7 million) pay package in 2015, according to a filing from parent company Alphabet Tuesday.

Mr Pichai received US$99.8 million in restricted stock that will vest in full by 2017. He also received a US$652,500 salary. The stock award hasn't previously been disclosed in filings.

The former deputy of co-founder Larry Page was named to run the search engine unit following the reorganisation into a holding company last year. Following that promotion, Alphabet in February awarded him restricted shares valued at US$199 million, the largest grant ever given to a Google executive officer whose pay has to be reported in filings.

The two grants have brought Mr Pichai's holding of unvested restricted shares to US$635 million as of Monday's close in New York, according to data compiled by Bloomberg. He also holds unvested stock options valued at US$11.6 million.

Alphabet typically grants equity awards to executives once every two years, a strategy it has said "encourages executives to take a long-term view of the business."

Executive Chairman Eric Schmidt received US$8.04 million for 2015, including a US$1.25 million salary and US$6 million cash bonus. Chief Financial Officer Ruth Porat was awarded US$31 million, including US$25.1 million in restricted stock.

An Alphabet spokesman didn't immediately respond to a request for comment.