Amazon CEO Jeff Bezos and wife MacKenzie are divorcing

Billionaire CEO of Amazon Jeff Bezos announed on wednesday that he and his wife of 25 years are getting a devorce. Jeff sent the news via twitter three days before his 55th birthday — in a tweet signed by both of them. They have four children together.

“We want to make people aware of a development in our lives. As our family and close friends know, after a long period of loving exploration and trial separation, we have decided to divorce and continue our shared lives as friends,” the tweet says.

Jeff and his wife launched a charitable fund together last year called the Day One Fund. The statement Wednesday suggests they will continue to work together on that effort.

“We’ve had such a great life together as a married couple, and we also see wonderful futures ahead, as parents, friends, partners in ventures and projects, and as individuals pursuing ventures and adventures,” the tweet says.

MacKenzie Bezos, a 48-year-old novelist, is often cited in the Amazon origin story as having supported her husband’s move off of Wall Street and into e-commerce.

Shares of Amazon dipped slightly immediately following the announcement before paring those losses.