X0508 4 2026-02-15 0 0001283699 T-Mobile US, Inc. TMUS 0001886089 Nelson Mark Wolfe C/O T-MOBILE US, INC. 12920 SE 38TH STREET BELLEVUE WA 98006 0 1 0 0 Chief Legal Officer & GC 1 Common Stock 2026-02-15 4 A 0 19576 0 A 83438.389 D Common Stock 2026-02-15 4 F 0 6948.668 219.50 D 76489.721 D Common Stock 2026-02-15 4 A 0 12287 0 A 88776.721 D Common Stock 2026-02-15 4 F 0 4256.689 219.50 D 84520.032 D Common Stock 2026-02-17 4 S 0 10240 220.80 D 74280.032 D Common Stock 2026-02-18 4 S 0 6274 219.69 D 68006.032 D Represents restricted stock units granted under the issuer's 2023 Incentive Award Plan, (the "Plan"); one-third of the units vest on each of February 15, 2027, February 15, 2028 and February 15, 2029, subject to the terms of the Plan and related award agreement. Represents shares withheld for payment of taxes on vesting of restricted stock units; not an open market transaction. Represents performance-based restricted stock units earned under the issuer's 2015 Sprint Omnibus Incentive Plan, that vested on February 15, 2026 based on the Company's relative total shareholder return during the three-year period ending February 15, 2026. Represents shares withheld for payment of taxes on vesting of performance-based restricted stock units; not an open market transaction. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 24, 2025. /s/ Frederick Williams, Attorney-in-Fact 2026-02-18