T-Mobile (TMUS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-10 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: T-Mobile US, Inc. (TMUS) CIK: 0001283699 --- Reporting Owner --- Name: Drobac Daniel James CIK: 0002066499 Role: Officer (VP & Chief Accounting Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-09-10 | Code: S (Open market sale) Shares: -772 | Price: $178.33 Total Value: $137,670.76 Shares Owned After: 35,117.537 | Ownership: D (Direct) Footnotes: [F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2026. [Transaction #2] Security: Common Stock Date: 2026-09-10 | Code: A (Grant or award) Shares: +1.769 | Price: $178.14 Total Value: $315.13 Shares Owned After: 35,119.306 | Ownership: D (Direct) Footnotes: [F2] Represents dividends accrued on vested restricted stock units. --- Footnotes (Complete Index) --- F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2026. F2: Represents dividends accrued on vested restricted stock units. --- Signature --- /s/ /s/ Frederick Williams, Attorney-in-Fact (2026-09-14)