Media Buying Briefing: Stagwell’s chief AI officer explains why Palantir differentiates its data platform from competitors

Eyebrows were raised when Stagwell announced last November it struck a deal with defense and surveillance firm Palantir to build an AI-powered data and audience platform. But Stagwell CEO Mark Penn knew Palantir’s CEO Alex Karp and believed the power of Palantir would help the challenger holdco to build something different and better than its older but bigger competitors. 

So Penn hired John Kahan, who chaired the board of directors of Stagwell until last year, and has a 40-year work history in data and analytics at IBM and Microsoft, to oversee the work with Palantir as chief AI officer and interim CEO of Stagwell’s Marketing Cloud. Kahan was initially reluctant to take on the task, he told Digiday, as he had planned to ease his way into retirement but Penn talked him into the job. (Elspeth Rollert has since taken over The Marketing Cloud having returned from maternity leave.)

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DMexco ’26 Briefing: From scaling AI operations to teaching the next generation of ‘bold’ CMOs

The future of AI adoption and the role of CMO in that disruption and transformation were central hot topics discussed on the main stage across the two days of DMexco 2026 held in Cologne, Germany this week.

Conference media partner Digiday hosted two panels that outlined the central challenges and opportunities of both those themes.

The first panel on the first morning of the conference, which featured Meta’s Tino Krause, regional director Germany, Austria, Switzerland, Kristin Fracchia, Gamma’s chief growth officer, Alexander Beresford, Taxfix’s CMO and chief growth officer, and Asil Yilmaz, design director at IBM, keyed on how to turn AI into a competitive advantage at scale. The panel weighed in on the rapid evolution of AI, focusing on organization governance, trust and the necessity of maintaining human centricity amidst AI’s rapid technological acceleration.

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