Harold Wolpert, the theater exec who’s been managing director of the Roundabout Theater Company for more than 10 years, will exit his post this fall.

He’s leaving the organization in October to “explore exciting new opportunities,” he said in a statement, but will remain affiliated with the Roundabout as a consultant through mid-2017. No plans have yet been set in terms of finding his replacement.

Wolpert stepped into his post — one of the top leadership slots at New York’s biggest nonprofit theater (alongside veteran artistic director Todd Haimes) — in July 2005, following stints at Manhattan Theater Club and the Alley Theater. During the course of his tenure at Roundabout, the organization added a third Broadway stage (the Stephen Sondheim, which reopened under the theater’s tutelage in 2009), created a second Off Broadway space devoted to emerging creatives (which has provided breakout showcases for young playwrights including recent Tony winner Stephen Karam), and found Broadway success in productions including “Anything Goes,” “The Pajama Game” and recent titles “She Loves Me” and “Long Day’s Journey Into Night.”

Most recently, Wolpert helped shepherd the organization through its 50th anniversary season, which yielded some 27 Tony nominations for show produced by the Roundabout or originating at the compnay. The upcoming season includes a starry new adaptation of “The Cherry Orchard” by Karam and a new musical version of “Holiday Inn.”

Roundabout expects to announce plans to fill its vacant position soon.