X0306 4 2018-09-20 0 0001283699 T-Mobile US, Inc. TMUS 0001297461 Carter J Braxton II C/O T-MOBILE US, INC. 12920 SE 38TH STREET BELLEVUE WA 98006 0 1 0 0 EVP & CFO Common Stock 2018-09-20 4 S 0 15000 68.9277 D 247824 D The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 12, 2017. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.92 to $68.99. 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 in this footnote. Since the date of the reporting person's last ownership report, he transferred 12,178 shares to his former spouse pursuant to a domestic relations order. Exhibit 24 - Power of Attorney /s/ Frederick Williams, Attorney-in-Fact 2018-09-24