Tech company Astronomer said its board launched an investigation after CEO Andy Byron was seen embracing a coworker at a Coldplay concert.

Days after Astronomer announced the resignation of its married chief executive, Andy Byron, who was seen in a viral video with the head of human resources, Kristin Cabot, at the band’s performance at Gillette Stadium in Foxboro, Mass., the tech startup confirmed that Cabot is no longer employed by the company.