The recently retired forward was announced Thursday as the Panthers' new vice president of business operations. Thornton revealed in April that he would join the team's front office and work under Panthers president and CEO Matthew Caldwell after taking a bit of time after the season to prepare for his new career.
"It's a humbling day for me and I'm excited to begin the next chapter of my career in hockey," Thornton said.
Thornton played for two Stanley Cup winners as part of the Boston Bruins.