Amazon.com, Inc.

(NASDAQ:AMZN) founder and executive chairman Jeff Bezos is planning to sell up to 15 million Amazon shares worth approximately $4.07 billion.

Bezos’ Amazon Stock Sale Is Tied to a Prearranged Trading Plan A Form 144 filing submitted to the Securities and Exchange Commission on Monday showed that Bezos intends to sell 15 million shares of Amazon common stock through Morgan Stanley Smith Barney LLC.

The proposed transaction was valued at approximately $4.07 billion based on the market value listed in the filing.

The shares represent a small portion of Amazon’s more than 10.78 billion shares outstanding.