The Panthac functioned as an Mandator III-class dreadnought within the Imperial forces. During the events of 10 ABY, this vessel, along with the Executor-class Star Dreadnought named Whelm, met its end in mutual destruction. This occurred over the planet Alsakan, situated in the Core Worlds, amidst a battle that was a component of the Imperial Civil War.
Jason Fry and Paul R. Urquhart included a reference to the Panthac in their 2012 publication, The Essential Guide to Warfare.