TMUS — T MOBILE US INC

Ownership history in VIKING GLOBAL INVESTORS LP  ·  29 quarters on record

This page tracks every 13F SEC filing in which VIKING GLOBAL INVESTORS LP reported a position in T MOBILE US INC (TMUS). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
6.96% (2022 Q1)
Avg. % of fund
2.24%
First filed
2015 Q1
Last filed
2025 Q4
Quarters held
29
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 3,754,218 +491,752 +15.1% 2.02% $762.3M $202.07
2025 Q3 ADDED 3,262,466 +417,150 +14.7% 2.03% $781.0M $237.06
2025 Q2 ADDED 2,845,316 +1,279,422 +81.7% 1.96% $677.9M $235.12
2025 Q1 ADDED 1,565,894 +955,490 +156.5% 1.33% $417.6M $262.23
25 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    TMUS price (monthly, adj. close)

Other funds also holding TMUS

As of 2025 Q4 — sorted by position size

Crake Asset Management LLP 3Y 6.94% Copos Capital S.a r.l. 6.2% Act Two Investors LLC 3Y 7Y 5.74% 140 Summer Partners LP 3Y 5.71% Sustainable Insight Capital Management, LLC 3Y 7Y 4.71% ACCOUNT MANAGEMENT LLC 3Y 7Y 3.5% Ardmore Road Asset Management LP 3Y 3.4% Overbrook Management Corp 3Y 7Y 3.36% SEVEN GRAND MANAGERS, LLC 3Y 3.09% HOERTKORN RICHARD CHARLES 3Y 7Y 2.76%
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