Boston Partners’s T-Mobile US Inc Position
Does Boston Partners own T-Mobile US Inc (TMUS)? Yes — 2.40M shares worth $504M (+0.53% of its 13F portfolio) as of Q1 2026, up from 2.33M shares the prior filed quarter.
Position Value
$504M
Q1 2026
Shares
2.40M
% of Portfolio
+0.53%
Quarters Held
24
currently held
Position History TMUS
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q1 2026 | 2.40M | $504M | +0.53% |
| Q4 2025 | 2.33M | $472M | +0.49% |
| Q3 2025 | 2.12M | $506M | +0.52% |
| Q2 2025 | 1.54M | $367M | +0.41% |
| Q1 2025 | 1.39M | $370M | +0.45% |
| Q4 2024 | 1.55M | $342M | +0.42% |
| Q3 2024 | 1.85M | $383M | +0.45% |
| Q2 2024 | 1.86M | $329M | +0.41% |
| Q1 2024 | 2.60M | $424M | +0.51% |
| Q4 2023 | 2.57M | $412M | +0.55% |
| Q3 2023 | 2.74M | $384M | +0.53% |
| Q2 2023 | 2.09M | $290M | +0.39% |
| Q1 2023 | 2.57M | $372M | +0.51% |
| Q4 2022 | 3.41M | $479M | +0.65% |
| Q3 2022 | 3.49M | $470M | +0.69% |
| Q2 2022 | 3.79M | $512M | +0.72% |
| Q1 2022 | 3.07M | $395M | +0.48% |
| Q4 2021 | 1.86M | $216M | +0.26% |
| Q3 2021 | 1.71M | $218M | +0.28% |
| Q2 2021 | 2.64M | $383M | +0.49% |
| Q1 2021 | 4.49M | $563M | +0.76% |
| Q4 2020 | 3.57M | $482M | +0.75% |
| Q3 2020 | 3.72M | $426M | +0.78% |
| Q2 2020 | 2.97M | $309M | +0.57% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Boston Partners’s full portfolio or all institutional holders of TMUS.