Google chairman Eric Schmidt plans to sell shares worth $US2.5 billion over the next year.
In a filing with the Securities Exchange Commission, Google said the sale amounts to a 2.3% stake in the company and 8.2% of voting power.
AAP reported the sale was part of a pre-arranged trading plan.
Google's share price climbed 1.5% on Friday to a record $US785.37, putting the value of the shares Schmidt will sell at $US2.51 billion.
