X0609 4 2026-09-24 0 0001283699 T-Mobile US, Inc. TMUS 0002066499 Drobac Daniel James false C/O T-MOBILE US, INC. 12920 SE 38TH STREET BELLEVUE WA 98006 0 1 0 0 VP & Chief Accounting Officer 0 Common Stock 2026-09-24 4 A 0 2768 0 A 37887.306 D Represents restricted stock units granted under the issuer's 2023 Incentive Award Plan, (the "Plan"); one-sixth of the units vest on each of March 24, 2027, September 24, 2027, March 24, 2028, September 24, 2028, March 24, 2029 and September 24, 2029, subject to the terms of the Plan and related award agreement. /s/ Jen Huang, Attorney-in-Fact 2026-09-28