T-Mobile US
TMUS
1,723 hedge funds and large institutions have $111B invested in T-Mobile US in 2025 Q3 according to their latest regulatory filings, with 142 funds opening new positions, 772 increasing their positions, 587 reducing their positions, and 147 closing their positions.
32% more repeat investments, than reductions
Existing positions increased: 772 | Existing positions reduced: 587
0.39% less ownership
Funds ownership: 41.82% → 41.43% (-0.39%)
1% less capital invested
Capital invested by funds: $113B → $111B (-$1.59B)
3% less first-time investments, than exits
New positions opened: 142 | Existing positions closed: 147
6% less call options, than puts
Call options by funds: $1.35B | Put options by funds: $1.43B
2% less funds holding
Funds holding: 1,756 → 1,723 (-33)
43% less funds holding in top 10
Funds holding in top 10: 30 → 17 (-13)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$1.05B |
| 2 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$769M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$524M |
| 4 |
BlackRock
New York
|
+$481M |
| 5 |
Goldman Sachs
New York
|
+$354M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SoftBank Group
Tokyo,
Japan
|
-$4.52B |
| 2 |
Jane Street
New York
|
-$542M |
| 3 |
GCM
Ghisallo Capital Management
Boston,
Massachusetts
|
-$536M |
| 4 |
Acadian Asset Management
Boston,
Massachusetts
|
-$261M |
| 5 |
Arrowstreet Capital
Boston,
Massachusetts
|
-$189M |
TMUS Hedge Fund Activity: Q3 2025 in Review
1,723 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in T-Mobile US (TMUS) for Q3 2025, worth a combined $111B — down 1.4% from $113B a quarter earlier.
Sellers outnumbered buyers: 147 funds closed out of TMUS and 142 opened new positions — a net loss of 5 holders — while 587 trimmed existing stakes and 772 added.
The largest buyer was Wellington Management Group, adding an estimated $1.05B. The largest seller was SoftBank Group, cutting an estimated $4.52B.
- 1,723 institutional investors held T-Mobile US (TMUS) as of Q3 2025, down from 1,756 in Q2 2025.
- Funds reported $111B of T-Mobile US stock for Q3 2025, down 1.4% quarter-over-quarter.
- 142 funds opened new T-Mobile US positions in Q3 2025 and 147 closed out, a net change of -5 holders.
- The largest T-Mobile US buyer in Q3 2025 was Wellington Management Group, an estimated $1.05B added.
- The largest T-Mobile US seller in Q3 2025 was SoftBank Group, an estimated $4.52B sold.
Based on aggregated 13F filings for Q3 2025.