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: 2026-05-21 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: T-Mobile US, Inc. (TMUS) CIK: 0001283699 --- Reporting Owner --- Name: Freier Jon CIK: 0001866674 Role: Officer (Chief Operating Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-21 | Code: S (Open market sale) Shares: -4,799 | Price: $190.00 Total Value: $911,810.00 Shares Owned After: 217,167.63 | Ownership: D (Direct) Footnotes: [F1] This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 19, 2026. [F2] Includes acquisition of shares of common stock under the issuer's Amended and Restated 2014 Employee Stock Purchase Plan. --- Footnotes (Complete Index) --- F1: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 19, 2026. F2: Includes acquisition of shares of common stock under the issuer's Amended and Restated 2014 Employee Stock Purchase Plan. --- Signature --- /s/ /s/ Frederick Williams, Attorney-in-Fact (2026-05-26)