'The Leftovers' star sported dark clothing for the outing, a leading daily reported.
Buzz of a breakup spread as they recently spent more time apart. Aniston celebrated her 49th birthday without Theroux in Malibu, California.
The couple married in 2015 at a surprise ceremony at their home. They'd gotten engaged on his birthday in 2012.
The duo said in a statement released through her publicist that the decision to end their marriage 'was mutual and lovingly made at the end of last year. (ANI)