Jeff Bezos and MacKenzie Bezos at an LA gala last January.\u00a0Greg Doherty/Patrick McMullan via Getty ImageJeff and MacKenzie Bezos said Thursday they've finalized their divorce, with MacKenzie Bezos gaining 4% of Amazon's stock as part of the split. The 4% stake would make MacKenzie Bezos one of Amazon's four biggest shareholders and one of the world's 30 richest people, worth about $35 billion, just above somputer industry veteran Michael Dell.\u00a0 Jeff Bezos will continue to own about 12% of Amazon and will remain the world's richest person, even after giving up 25% of his Amazon ownership. He'll be worth roughly $115 billion, still over $10 billion more than Bill Gates, No. 2 on the Bloomberg Billionaires Index. MacKenzie Bezos agreed to allow Jeff Bezos to keep voting control of her shares. The entire 16% stake being split in the divorce was previously only under Jeff Bezos' name. MacKenzie Bezos also agreed to give over to Jeff Bezos her interests in The Washington Post and Blue Origin, Bezos' space-travel and rocket company. Amazon's stock was little changed after the announcement. Amazon representatives declined to comment for this story. According to a filing with the Securities and Exchange Commission,\u00a0 a divorce petition was filed Thursday and a divorce decree -- the final step to complete a divorce -- should be issued in about 90 days. If MacKenzie Bezos sells any of her shares, Jeff Bezos will continue to maintain voting control of those shares, the filing said. Unless he approves a change, this arrangement will terminate "only upon the death or a determination of legal incapacity of Mr. Bezos." The finalization of the divorce should help Jeff Bezos move on from a particularly turbulent time for him. For years, he's maintained a relatively quiet personal life, even after becoming enormously wealthy and running the world's largest e-commerce company. That all changed soon after the divorce announcement. Now playing: Watch this: The new wild and crazy life of Amazon's Jeff Bezos (The... 5:22 The couple went public with their impending divorce in January, after marrying 25 years ago, one year prior to Bezos' founding of Amazon. While their announcement started with a seemingly heartfelt comment about staying close friends, the National Enquirer tabloid hours later revealed that Jeff Bezos had been dating Lauren Sanchez, a former TV reporter who founded an aerial film production company called\u00a0Black Ops Aviation. The situation got messier when Bezos a month later published a Medium post saying the National Enquirer had nude photos of him. He claimed the publication was threatening to release those photos unless he ended a private investigation into how the tabloid got hold of his text messages to Sanchez. Michael Sanchez, Lauren's brother and a longtime source for the Enquirer, leaked those texts to the publication, according to reports by both The Wall Street Journal and The Daily Beast. He hasn't admitted that he was the source.\u00a0 First published at 10:17 a.m. PT.Update 11:17 a.m. PT:\u00a0 Adds background information throughout.