Larry Page and Sergey Brin are the biggest wealth gainers this year after Oracle's Larry Ellison. Alphabet's cofounders have added over $55 billion to their respective fortunes in just three months. The "Google Guys" are worth a combined$453 billion — more than Costco or Bank of America. The "Google Guys" have got their groove back. Larry Page and Sergey Brin are the world's second- and third-biggest wealth gainers this year as of Monday's close, the Bloomberg Billionaires Index shows. The Alpha ...