Matt Adams, current Chief Operating Officer of Assembly Global, will lead as Global CEO

alongside Marissa Jiminez who will join the Stagwell Media Platform as Global Chief Trading and

Solutions Officer

NEW YORK and LONDON, July 9, 2025 /PRNewswire/ -- Stagwell $(STGW)$, the challenger network built to transform marketing, today announced the launch of the Stagwell Media Platform $(SMP)$, its centralized team of global media, technology and data experts designed to create client advantage through a smarter use of scale in a fully addressable world. Powered by agentic principles, the team optimizes trading and investment product solutions for Stagwell's global network and media partners.

Matt Adams will serve as Global CEO of SMP in addition to his role as Global Chief Operating Officer of Assembly Global. Marissa Jimenez will take on the role of Global Chief Trading and Solutions Officer at SMP, effective July 14, 2025. She will be based in New York City and report to Adams. Jimenez brings 20 years of industry experience and joins from Dentsu US, where she served as EVP, Commercial.

The SMP sits across all Stagwell agencies worldwide to bring together the efficiency of scale, collaboration and the ability to go deep with media and technology partners. The team utilizes Stagwell's scale, technology, and partnerships to model, forecast, and optimize towards outstanding efficiency and outcomes for clients. Also, SMP offers a suite of solutions across creative, media and digital transformation services, all designed to benefit Stagwell partners and clients.

"The Stagwell Media Platform is a big step forward in making the capabilities of our media and data investment solutions readily available for our partners and clients worldwide. We set out to streamline operations across Stagwell agencies, and this is one of the ways we're delivering on that promise," said Mark Penn, Chairman and CEO of Stagwell.

"This suite of solutions repositions, matures, and expands the way we do business with our valued partners in a consolidating, addressable world, making it accessible to the entire Stagwell network," added Matt Adams, Global CEO of the Stagwell Media Platform. "Marissa and I look forward to making a difference for our clients in a world that is open for opportunity."

About Stagwell

Stagwell is the challenger holding company built to transform marketing. We deliver scaled creative performance for the world's most ambitious brands, connecting culture-moving creativity with leading-edge technology to harmonize the art and science of marketing. Led by entrepreneurs, our specialists in 45+ countries are unified under a single purpose: to drive effectiveness and improve business results for our clients. Join us at www.stagwellglobal.com.

Contact

Quinn Werner

PR@stagwellglobal.com

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SOURCE Stagwell Inc.

(END) Dow Jones Newswires

July 09, 2025 09:01 ET (13:01 GMT)