T-Mobile US (TMUS) has seen significant insider selling activity in 2025 and 2026, involving multiple executives and major shareholders, though some trades were pre-arranged or tax-related.
Jon Freier (COO): Sold 4,799 shares at $190.00 per share in May 2026 under a Rule 10b5-1 plan, retaining 217,167.63 shares.
Callie R. Field (President): Sold 12,300 shares for $2.96 million in July 2025, part of a trend of insider selling despite strong financial performance.
Raul Marcelo Claure (Director): Sold 550,000 shares for approximately $119.7 million in February 2026, reducing his stake by roughly 38%.
Telekom AG Deutsche: Sold 209,520 shares in July 2025 and has sold over 3.26 million shares total in the past six months, reflecting a larger trend of divestment by the major shareholder.
Thomas Dannenfeldt: Withheld 311.4 shares in June 2026 for tax obligations upon vesting, which is a non-market transaction.
Mike Katz (President of Marketing, Strategy & Products)
Current Holdings: 181,930 shares (directly owned).
Recent Activity: Katz sold 5,000 shares on May 1, 2026, at a weighted average price of $195.81 per share.
Transaction Value: The sale totaled approximately $979,050.
Status: Despite the sale, Katz retains a significant stake valued at over $35 million, reflecting his long-term tenure and executive position. He had previously sold 2,500 shares in November 2025
Mike Sievert (Director)
Current Holdings: 125,696 shares (directly owned).
Recent Activity: Sievert sold 15,000 shares in late February 2026 (Feb 23–24) at weighted average prices between $220.07 and $221.85.
Transaction Value: The sale generated approximately $3.3 million.
Status: Despite the sale, he remains a significant individual shareholder with a stake valued at over $27 million based on current prices.
Mike