T-MOBILE US INC (TMUS) Institutional Ownership Changes & 13F Activity

T-MOBILE US INC (TMUS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC, Viking Global Investors, Dodge & Cox Stock Fund, Sequoia Financial Advisors, and Hancock Classic Value.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-803,000280,807$58,977,894
Q1 2026Viking Global InvestorsSell-786,8442,967,374$623,237,561
Q1 2026Dodge & Cox Stock FundSell-28,1736,157,799$1,293,322,524
Q1 2026Sequoia Financial AdvisorsBuy1,17118,538$3,893,452
Q1 2026Hancock Classic ValueSell-870975$204,779
Q4 2025Dodge & Cox Stock FundBuy2,442,4506,185,972$1,255,999,755
Q4 2025Renaissance Technologies LLCBuy837,2001,083,807$220,056,173
Q4 2025Viking Global InvestorsBuy491,7523,754,218$762,256,423
Q4 2025Sequoia Financial AdvisorsBuy3,07317,367$3,526,210
Q3 2025Viking Global InvestorsBuy417,1503,262,466$780,969,111
Q3 2025Dodge & Cox Stock FundSell-356,7573,743,522$896,124,296
Q3 2025Renaissance Technologies LLCSell-186,284246,607$59,032,784
Q3 2025Sequoia Financial AdvisorsBuy65714,294$3,421,644
Q2 2025Dodge & Cox Stock FundSell-1,732,2744,100,279$976,932,475
Q2 2025Viking Global InvestorsBuy1,279,4222,845,316$677,924,990
Q2 2025Renaissance Technologies LLCBuy240,084432,891$103,140,610
Q2 2025Sequoia Financial AdvisorsBuy21213,637$3,249,165
Q1 2025Dodge & Cox Stock FundSell-3,550,1285,832,553$1,555,600,211
Q1 2025Viking Global InvestorsBuy955,4901,565,894$417,639,589
Q1 2025Berkshire HathawaySell-466,8553,883,145$1,035,673,603
Q1 2025Renaissance Technologies LLCBuy176,300192,807$51,423,555
Q1 2025Sequoia Financial AdvisorsSell-1,22813,425$3,580,560
Q4 2024Viking Global InvestorsSell-540,334610,404$134,734,475
Q4 2024Berkshire HathawaySell-322,0004,350,000$960,175,500
Q4 2024Dodge & Cox Stock FundSell-188,3689,382,681$2,071,039,177
Q4 2024Sequoia Financial AdvisorsBuy39814,653$3,234,417
Q3 2024Viking Global InvestorsSell-1,342,0641,150,738$237,466,294
Q3 2024Dodge & Cox Stock FundSell-256,8409,571,049$1,975,081,672
Q3 2024Sequoia Financial AdvisorsBuy2,12714,255$2,941,568
Q3 2024Hancock Classic ValueSell-9071,845$380,734

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.

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