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: 2026-05-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: T-Mobile US, Inc. (TMUS) CIK: 0001283699 --- Reporting Owner --- Name: Katz Michael J. CIK: 0001867492 Role: Officer (Chief Bus. and Prod. Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-01 | Code: S (Open market sale) Shares: -5,000 | Price: $195.81 Total Value: $979,050.00 Shares Owned After: 181,930.481 | Ownership: D (Direct) Footnotes: [F1] The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $195.74 to $196.115. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth on this footnote. --- Footnotes (Complete Index) --- F1: The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $195.74 to $196.115. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth on this footnote. --- Signature --- /s/ /s/ Frederick Williams, Attorney-in-Fact (2026-05-04)