Neither the Bezoses nor Amazon have commented on the likely division of the couple's assets, including a 16 percent stake in the company.
However, his wealth might decline a little bit soon, and that's because he and his wife, MacKenzie Bezos, are getting a divorce after 25 years together. Amazon, initially an online bookstore, was launched in July 1994 in the couple's garage.
The couple have also acquired at least five homes in California, Washington state, Texas, Washington D.C. and NY throughout their 25-year marriage.
Washington State, where the couple live and where Amazon is based, is known as a "community property" state, meaning anything owned by a couple is taken to be owned by both together and could, in theory, be split equally between them.
As a result, 54-year-old Mr Bezos's personal fortune is believed to be as much as $160bn.
Bezos, Sanchez and Amazon did not yet respond to requests for comment. They intend to remain co-parents and friends.
"My guess is they've probably have already worked up some sort of framework, and that's why they're announcing it now", Payseno said of the Bezoses.
Amazon's stock edged up $2.84 Wednesday to close at $1,659.42.
Amazon again became Wall Street's most valuable company this week, surpassing Microsoft.
He also owns The Washington Post, which has been a target of criticism from US President Donald Trump.
In this case, that includes Amazon, which Bezos founded soon after marrying MacKenzie. The e-commerce giant accounted for just 5 percent of USA online holiday sales this season, according to the firm's estimates, indicating that Amazon can still attract customers who aren't already heavy users of the platform.