T-Mobile US, Inc. (TMUS) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-16 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: T-Mobile US, Inc. (TMUS) CIK: 0001283699 --- Reporting Owner --- Name: Datar Srikant M. CIK: 0001376436 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-16 | Code: A (Grant or award) Shares: +1,384 | Price: $0.00 Shares Owned After: 2,422 | Ownership: D (Direct) Footnotes: [F1] Represents restricted stock units granted under the Issuer's 2023 Incentive Award Plan; such units vest in full on June 16, 2027 (the one-year anniversary of the grant), subject to the terms of the Issuer's Director Compensation Program. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) [Holding #2] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] The reporting person and his spouse, who owned these shares jointly, contributed them to a limited liability company ("Safari LLC") owned and managed by the reporting person and his spouse. [Holding #3] Security: Common Stock Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: Represents restricted stock units granted under the Issuer's 2023 Incentive Award Plan; such units vest in full on June 16, 2027 (the one-year anniversary of the grant), subject to the terms of the Issuer's Director Compensation Program. F2: The reporting person and his spouse, who owned these shares jointly, contributed them to a limited liability company ("Safari LLC") owned and managed by the reporting person and his spouse. --- Signature --- /s/ /s/ Frederick Williams, Attorney-in-Fact (2026-06-18)