actor Kevin Costner, has taken off her wedding ring after filing for divorce on Monday.
The couple had been married for 18 years
Baumgartner cited "irreconcilable differences" as the reason for the end of their marriage
She has asked for joint custody of their three children
Cayden (15), Hayes (14), and Grace (12)
A spokesperson for Costner confirmed the news of the divorce
Costner has responded to Baumgartner's petition by also requesting joint custody of their children
An insider revealed that Costner was "stunned" by the divorce
but a friend confirmed that there were no allegations of infidelity this time around
Costner was previously married to Cindy Costner
the couple has three children together.