Who owns the locomotive that was used in The Polar Express?

The locomotive used in "The Polar Express" is a real train known as the 2-8-4 steam locomotive, specifically the Pere Marquette 1225. It is owned by the Steam Railroading Institute in Owosso, Michigan. The locomotive is a significant piece of rail history and has been restored to operational condition, allowing it to participate in various events and excursions.