Mike Katz to Exit T-Mobile as Sambar Named Enterprise Chief

T-Mobile has announced that Mike Katz, its Chief Business & Product Officer, has decided to step away from the company and pursue new professional interests. Mike will remain in a strategic advisory role through December 2026 to support a seamless transition.

The departure follows more than 20 years at the operator, during which Katz played a central role in shaping the Un-carrier movement that has defined T-Mobile's approach to the American wireless market.

T-Mobile is currently evolving its executive team, aligning with strategic priorities outlined in the company's February 2026 Capital Markets Update. 

The operator is positioning itself to accelerate expansion in new and emerging growth opportunities, innovate to build next-generation networks powered by AI and 6G, and strengthen differentiation for customers.

Mike’s legacy spans the Un-carrier era

Addressing Katz's departure, T-Mobile CEO Srini Gopala says: "I extend my sincere gratitude to Mike for his incredible contributions to T-Mobile over his 20-plus years. 

"Mike helped shape the Un-carrier movement and has been a driving force of so many of the bold moves that have transformed our company and our industry. Millions of consumers benefit every day from Mike's vision and his commitment to dare to do things differently.

"T-Mobile has incredible opportunity ahead as we continue to exceed the ambitious goals we've set for ourselves and set a new standard for our industry. I'm confident that our leadership team's long-term vision will drive sustained growth for T-Mobile and develop bold new offerings for our customers."

Sambar joins from Public Storage

T-Mobile confirmed that wireless industry veteran Chris Sambar will join the company as Chief Enterprise Officer, effective no later than 14 October 2026. 

Chris will report to Srini and will lead the operator's small and medium business (SMB), enterprise and government businesses, while scaling emerging growth opportunities.

He will join from Public Storage, where he serves as Chief Operating Officer.

Before Public Storage, Chris previously spent two decades at AT&T, where his accomplishments included building the company's 5G mobile network, developing corporate strategy and leading enterprise sales, including the design and deployment of the FirstNet public safety network.

Chris holds an MBA from the University of Southern California and is a graduate of the US Naval Academy. He served more than 20 years in the US Navy, including seven years on active duty.

"I am honoured to join T-Mobile's exceptional leadership team at a time when the company is redefining the industry through bold innovation," Chris says. 

"T-Mobile's relentless customer-first spirit is exactly what I believe will define the next generation of business technology and connectivity, and I look forward to helping unlock new growth opportunities while building on the company's pioneering legacy and track record."

Almeida takes expanded consumer role

T-Mobile also announced that it has appointed André Almeida, currently Chief Broadband, Enterprise & Emerging Business Officer, to an expanded position as Chief Marketing, Brand & Broadband Officer. 

In this role, André will partner with Chief Operating Officer Jon Freier to oversee T-Mobile's consumer wireless and broadband businesses, focusing on capturing new growth segments and continuing to win with customers.

The operator's network, technology, product engineering and cyber functions will be integrated under the leadership of Dr John Saw, Chief Technology Officer.

"Chris is a seasoned wireless industry leader with proven experience including expanding high-growth businesses and seizing market opportunities. He's a terrific addition to T-Mobile's leadership team," says Srini. 

"I am also thrilled that André is stepping into his new role, as he has been instrumental in building several of our fastest-growing businesses. 

“With these appointments, I am confident T-Mobile's leadership team has the speed, focus and expertise to shape the next generation of our industry as we continue to innovate and disrupt with a truly differentiated offering for our customers."