Google's Billionaire Co-Founder Gifts $600 Million in Surging Shares and Launches AI Beast.

Google co-founder Sergey Brin gifted Alphabet Inc. shares worth roughly $600 million on Thursday during a week that saw his wealth grow by the most in over two years. The gift, disclosed in a filing Monday, doesn’t specify who received the 5.2 million shares, which were evenly split between newly converted Class A stock and Class C stock. Brin’s net worth is now $100.7 billion, according to the Bloomberg Billionaires Index. His fortune, the ninth-highest in the world, is largely made up of a combination of Class B and Class C shares of Alphabet.