T-MOBILE US INC (TMUS) Stock Institutional Trading Activity
T-MOBILE US INC (TMUS) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Viking Global Investors, Dodge & Cox Stock Fund, Sequoia Financial Advisors, and Berkshire Hathaway. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
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- T-MOBILE US INC (TMUS) stock institutional ownership
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q2 2014 | Third Point | Sell | -1,500,000 | 8,000,000 | $268,960 |
| Q1 2014 | Hancock Classic Value | Sell | -1,033,250 | 17,600 | $581 |
| Q1 2014 | Third Point | Buy | 1,875,000 | 9,500,000 | $313,785 |
| Q4 2013 | Hancock Classic Value | Sell | -7,350 | 1,050,850 | $35,351 |
| Q4 2013 | Third Point | Buy | 7,625,000 | 7,625,000 | $256,505 |
| Q3 2013 | Hancock Classic Value | Buy | 24,950 | 1,058,200 | $27,481 |
| Q2 2013 | Hancock Classic Value | Buy | 1,033,250 | 1,033,250 | $25,635 |
Frequently asked questions about TMUS activity
Which institutional owners are buying TMUS?
Institutional owners buying TMUS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in TMUS activity?
"Buy" means an investor increased their reported position in TMUS compared to the prior reporting period. This reflects growing exposure to T-MOBILE US INC (TMUS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in TMUS increasing?
Institutional interest in TMUS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.