After 18 years as director of the Armory Show, the juggernaut art fair he co-founded, Paul Morris has decided to resign for personal reasons.

With fellow dealers Matthew Marks, Colin de Land and Pat Hearn, Morris launched the Gramercy International Art Fair in 1994. In 1999 the fair moved to the 69th Regiment Armory building and was re-christened the Armory Show, a name the fair has retained despite moving to two West Side piers in the early 2000s.

In 2007, several years after the deaths of both de Land and Hearn, Morris and Marks sold the Armory Show to the Chicago-based Merchandise Mart Properties, Inc., and Morris was appointed vice president of art shows and events (MMPI runs fairs in Toronto, Los Angeles and Basel, among other cities). Soon after taking on this role, Morris closed his own gallery after 13 years.

The Armory show has been undergoing many personnel changes over the past year. Katelijne de Backer, director since 2000, stepped down last September, and was replaced by new managing director Noah Horowitz. Over the summer Allison Rodman took over as communications manager from Lauren Pearson.

The next Armory Show takes place Mar. 7–10, 2013, in New York.