On December 8, 2025, Graphic Packaging Holding Company announced that the Company?s Board of Directors (the ?Board?) and Michael P. Doss, the Company?s President have initiated a transition process whereby Mr. Doss will depart from his current role with the Company. The Board is also expected to appoint Mr. Rietbroek as a member of the Board on January 1, 2026, when Mr. Rietbroek commences employment with the Company. To assist with the transition process, Mr. Doss will remain with the Company through the end of the day on December 31, 2025.
Mr. Rietbroek, age 52, brings a distinguished record of delivering strategic value creation and more than 25 years of global leadership experience across some of the world?s largest consumer products companies. Most recently, he served as the inaugural Chief Executive Officer and Director of Primo Brands Corporation, a publicly traded, leading North American branded bottled water company. Before serving as CEO of Primo Brands, Mr. Rietbroek served as Chief Executive Officer at Primo Water Corporation, a publicly traded provider of sustainable drinking water solutions.
He led Primo Water?s historic and transformative merger with BlueTriton Brands Inc., forming the combined entity Primo Brands in November 2024. Under his leadership, Primo Brands was named one of America?s Greenest Companies by Newsweek. Prior to that, he served as Senior Vice President and General Manager of Quaker Foods North America, a publicly reported division of PepsiCo, where he oversaw end-to-end operations and P&L, directing brand management, operational excellence, and strategic growth initiatives.
He also served as Senior Vice President and General Manager for PepsiCo Australia and New Zealand, where he led regional business performance. His extensive global tenure also encompasses leadership positions at Kimberly-Clark, where he led Global Baby and Child Care, and Kimberly-Clark Australia & New Zealand, where he had responsibility for the Millicent Mill in South Australia, one of the largest paper tissue and towel manufacturing facilities in the Asia-Pacific region. Mr. Rietbroek started his career at Procter & Gamble, where he worked for 15 years and served in a variety of positions driving strategic initiatives and brand development across Europe, South America, and the United States.
Mr. Rietbroek has board experience at the Consumer Brands Association, World Business Chicago, the Australian Food and Grocery Council, and American Chamber of Commerce Australia. He holds three packaging design patents and has a Master?s degree from Maastricht University in the Netherlands. In 2024, Mr. Rietbroek was honored by Key Executives as one of Tampa?s Top 25 CEOs, recognizing his visionary leadership and profound industry contributions.
He was also a featured speaker at the 2025 Milken Institute Global Conference.
