On September 6, 2023, T-Mobile US, Inc. entered into a letter agreement with Peter Ewens, the Company?s Executive Vice President, Corporate Strategy & Development, setting forth certain benefits Mr. Ewens will be entitled to receive from the Company upon his retirement on February 1, 2024. When Mr. Ewens retires, he will be entitled to receive the following (subject to his timely execution and non-revocation of a release of claims in favor of the Company and continued compliance with certain restrictive covenants): a prorated portion of his annual short-term incentive award for the 2024 calendar year, based on target performance and prorated based on the number of days he is employed by the Company during such calendar year; his outstanding and unvested time-based restricted stock units shall remain outstanding and shall continue to vest and be paid in accordance with the terms of the applicable award agreements; his outstanding and unvested performance-based RSUs shall remain outstanding and shall continue to vest and be paid in accordance with the terms of the applicable award agreements, with the number of PRSUs earned based on the lesser of (i) actual performance during the full performance period or (ii) actual performance during the portion of the performance period ending on the retirement date; Company-paid group medical and dental benefits for up to 18 months following retirement; and continued eligibility for the Company?s employee mobile service discount program.