Week in Charts: Stagwell’s Mark Penn on the State of Holdcos, AI Concerns Top IAB Europe Challenges, and “Subscription Cycling” on the Rise
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In this week's Week in Charts, Stagwell's Mark Penn on the state of holdcos, AI concerns top IAB Europe challenges, and "subscription cycling" on the rise. To have Week in Charts delivered to your inbox, you can sign up to the newsletter here. Quote of the Week Number of the Week Charts of the Read More
Last updated Mar 17, 2026 by ATDb automated enrichment