X0306 4 2015-12-31 0001283699 T-Mobile US, Inc. TMUS 0001250422 CAREY DAVID R C/O T-MOBILE US, INC. 12920 SE 38TH STREET BELLEVUE WA 98006 1 EVP, Corporate Services Common Stock 2015-12-31 4 A 0 110235.0000 0.0000 A 228483.0000 D Common Stock 2015-12-31 4 F 0 46244.0000 39.1200 D 182239.0000 D Represents performance-based restricted stock units earned under the issuer's 2013 Omnibus Incentive Plan. Includes acquisition of shares of common stock under the issuer's 2014 Employee Stock Purchase Plan. Represents shares withheld for payment of taxes on award of performance-based restricted stock units; not an open market transaction. /s/ Sarah E. Mock, Attorney-in-Fact 2016-01-05