The wife of Patrick Whitesell, executive chairman of WME-IMG holding company Endeavor, Sanchez is a former anchor of Good Day L.A. on KTLA Channel 5.
Bezos, whom Forbes lists at the world's richest person, worth an estimated $136.2 billion USA, said via Twitter on Wednesday that he and his wife of 25 years, MacKenzie, will divorce. "It's going to be a beauty".
Whitesell, Sanchez and Bezos were photographed together in 2016 while promoting the Amazon-distributed award-winner Manchester by the Sea, which starred Whitesell's client Michelle Williams.
In addition to the stock of Amazon, which recently surpassed Microsoft to become the world's most valuable company (a distinction Apple previously held), the couple also own a vast real estate empire, totaling some 400,000 acres. Previous divorces involving high-net-worth figures have ended up having a material impact, including those of Elaine Wynn and casino magnate Steve Wynn, and former Los Angeles Dodgers owner Frank McCourt and his ex-wife, Jamie.
The couple announced their separation after 25 years of marriage.
Bezos has repeatedly said he plans to liquidate $1 billion worth of Amazon stock each year to fuel Blue Origin's growth.
Amazon chieftain Jeff Bezos' estranged wife is poised to deliver a $90-billion knockout punch to the tech titan.
NY matrimonial lawyer Bernard Clair said in that case a judge would likely determine MacKenzie Bezos' share of Amazon stock based on her contribution to her husband's success, which could include helping him make important business decisions or raising their children so he could focus on work.
That means in the state of Washington where there are "community property rules", couples without a prenup split assets down the middle, thus meaning the Amazon CEO's fortune of $137B could be cut directly in half with a 50/50 split. They also gave $10 million to a super PAC supporting military veterans trying to get elected to Congress. As an officer and director at the company, Bezos could be required to file an SEC Form 4 within two business days of any transfer, though former SEC lawyer Broc Romanek noted a provision of USA securities laws exempts share transfers made pursuant to a domestic relations order. The couple also have several homes, including one in Beverly Hills.