Sources familiar with the matter confirm that Christopher Reardon, the U.K. native who’s spent nearly four years at TBWA\Chiat\Day New York, has turned in his resignation at the agency as of last week. No word yet on when his last day is or where he’s headed, but Reardon has most recently served as executive director of brand experience at TBWA\C\D NY. His departure comes on the heels of Chiat NY’s executive director of operations Jonathan Stern quietly leaving for the director of digital strategy on IBM post at OgilvyOne and head of production Robert Valdes quietly splitting for Droga5. Yes, quietly.

Anyhow, prior to his four-year stint at TBWA\C\D NY, Reardon worked on the UX side at the likes of Schematic and NBC. We’re hearing some sort of announce at Chiat NY might be in the works today, but no confirmation as of yet. We’ll keep you updated.