Back to TMUS researchManagerReported valueSharesFiling period Berkshire Hathaway$960M4.35M2024-12-31UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME$847M4.03M2026-03-31Dimensional Fund Advisors LP$801M3.81M2026-03-31Viking Global Investors$623M2.97M2026-03-31Legal & General Group Plc$530M3.78M2023-09-30Swiss National Bank$310M1.48M2026-03-31Point72 Asset Management$303M1.44M2026-03-31Sumitomo Mitsui Trust Group, Inc.$278M1.32M2026-03-31Mitsubishi UFJ Asset Management Co., Ltd.$268M1.27M2026-03-31BNP Paribas Financial Markets$264M1.50M2024-06-30Principal Financial Group Inc$252M1.50M2026-06-30Arrowstreet Capital, Limited Partnership$238M1.13M2026-03-31HSBC Holdings PLC$231M1.10M2026-03-31American Century Companies Inc$140M668K2026-03-31Third Point$140M1M2023-09-30Bridgewater Associates$20.7M98.48K2026-03-31Duquesne Family Office$106K757K2023-09-30Soros Fund Management$42.7K318K2022-06-30
Institutional ownership
TMUS in reported 13F portfolios
Reported long holdings only · filing data can be delayed up to 45 days after quarter-end.Managers18
Reported value$6.2B
Latest periodJun 2026
Frequently asked questions
Who owns TMUS?
18 managers currently show reported long TMUS positions in Insider Deck’s 13F sample, totaling about $6.2B.
How fresh is TMUS ownership data?
13F filings are quarterly and can lag quarter-end by up to 45 days. Positions appear after SEC tables are processed and CUSIPs resolve to tickers.