SHAREHOLDER ALERT: Purcell & Lefkowitz LLP Announces Shareholder Investigation of Stagwell Inc. (NASDAQ: STGW) SHAREHOLDER ALERT: Purcell & Lefkowitz LLP Announces Shareholder Investigation of Stagwell Inc. (NASDAQ: STGW) Allison Worldwide Named Official Public Relations Partner for North American Car, Truck and Utility Vehicle of the Year Awards (NACTOY) HarrisQuest's QuestDIY Launches New AI-Powered Reporting Capabilities with Industry Leading Partner, Displayr, Allowing Clients to Dive Deeper into Survey Insights ASSEMBLY APPOINTS BRIDGET HOPKINS AS NEW EUROPE CEO ASSEMBLY APPOINTS BRIDGET HOPKINS AS NEW EUROPE CEO Kettle Closes a Landmark Year of Momentum, Innovation and Industry Recognition Stagwell (STGW) Launches NewVoices.ai - An Enterprise Sales, Support and Retention Platform Powered by Adaptive AI 78% of American CEOs are Bullish on AI's Impact on Workplace Efficiency and Innovation, New Stagwell (STGW) Study Reveals Code and Theory Named Adweek's Inaugural Innovation Agency of the Year DECEMBER HARVARD CAPS / HARRIS POLL: TRUMP APPROVAL RATING RESETS TO 47% POST-SHUTDOWN; AFFORDABILITY AND INFLATION TOP ECONOMIC WORRIES HEADING INTO 2026 Allison Worldwide Expands Global Leadership with New Europe CEO Allison Worldwide Expands Global Leadership with New Europe CEO Stagwell Aligns Communications and Advocacy Companies under first Global Chair Zac Moffatt Stagwell (STGW) Appoints Jonathan Gardner as CEO of Harris Quest