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: Long Letitia A CIK: 0001637178 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: 6,822 | 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. [Transaction #2] Security: Common Stock Date: 2026-06-16 | Code: A (Grant or award) Shares: +272 | Price: $0.00 Shares Owned After: 7,094 | Ownership: D (Direct) Footnotes: [F2] 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). --- 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: 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). --- Signature --- /s/ /s/ Frederick Williams, Attorney-in-Fact (2026-06-18)