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Ben Barrett
Director, Investor Relations | New York, NY

Ben just had his 3-year anniversary as Director IR. He speaks daily with our most important
analysts and investors and has become a trusted partner to them. One of his key achievements was
developing the Un-carrier earnings approach and specifically developing the “Investor Factbook”
which has become the “go to” resource both externally and internally for key facts on TMUS.

Lisa Bauer
Insurance & Claims Manager | Bellevue, WA

Lisa eagerly joined the COI project team and quickly assumed a leadership role. She worked to
identify best practices, revisit our process, update our scope and span of control, select a qualified
supplier, and then implement the improved program.

Ben Burr
Finance Manager | Bellevue, WA

Ben enthusiastically partnered with our tax team in building a dynamic tax model for TMUS’ long-
range plan. His dedication to understanding complicated tax modeling helped facilitate critical
support to the DT tax team during their enterprise planning efforts.

Jenny Hu
Sr. Internal Audit Manager | Bellevue, WA
Jenny is recognized as the go-to person for all of Internal Audit’s financial audits. She contributed
to the EIP Allowance special project requested by the Audit Committee of the Board of Directors.
This would typically have taken several weeks to complete, but Jenny was the key to completing this
analysis in a matter of days.

Dan Kalenius
Sr. Supplier Manager | Bellevue, WA
Dan played a critical role in managing Samsung and LG MDF, a total of $400M, and quarterly
cash targets.

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