New York-based media agency Noble People has named Stacey Stewart as Head of Media Investment & Activation. Reporting to President Ben Hurst, Stewart will lead Noble People's media buying function across OOH, CTV/streaming, podcasts, broadcast, and radio, and will oversee investment standards, processes, and performance KPIs for the agency's client roster.  

Stewart brings more than 20 years of media investment leadership to the role. Most recently, she has been advising agencies independently on investment strategy, operating model design, and AI workflow integration.  

Previously she led cross-channel investment strategy and partnership negotiations as Head of Strategy & Operations at IPG's Magna. Earlier she served as Chief Marketplace Officer at Universal McCann (also part of IPG), where she directed more than $8 billion in media investment across 45-plus global clients.