The most recent insider trading activity at T-Mobile USA Inc. occurred on February 15, 2018. This involved a planned purchase of 270,000 shares valued at $16,076,961.0 by Deutsche Telekom Holding B.V. Prior to this, on February 14, 2018, a planned purchase of 300,000 shares valued at $17,337,030.0 was also made by the same entity.