T-Mobile US
TMUS
1,770 hedge funds and large institutions have $128B invested in T-Mobile US in 2025 Q1 according to their latest regulatory filings, with 246 funds opening new positions, 635 increasing their positions, 684 reducing their positions, and 112 closing their positions.
120% more first-time investments, than exits
New positions opened: 246 | Existing positions closed: 112
65% more funds holding in top 10
Funds holding in top 10: 31 → 51 (+20)
18% more capital invested
Capital invested by funds: $108B → $128B (+$19.6B)
6% more funds holding
Funds holding: 1,666 → 1,770 (+104)
0.28% less ownership
Funds ownership: 42.35% → 42.07% (-0.28%)
7% less repeat investments, than reductions
Existing positions increased: 635 | Existing positions reduced: 684
20% less call options, than puts
Call options by funds: $2.16B | Put options by funds: $2.68B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$719M |
| 2 |
JP Morgan Chase
New York
|
+$298M |
| 3 |
Capital International Investors
Los Angeles,
California
|
+$294M |
| 4 |
Viking Global Investors
Stamford,
Connecticut
|
+$236M |
| 5 |
Canada Pension Plan Investment Board
Toronto Ontario,
Ontario, Canada
|
+$213M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Dodge & Cox
San Francisco,
California
|
-$875M |
| 2 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$619M |
| 3 |
Norges Bank
Oslo,
Norway
|
-$455M |
| 4 |
BlackRock
New York
|
-$308M |
| 5 |
Invesco
Atlanta,
Georgia
|
-$286M |
TMUS Hedge Fund Activity: Q1 2025 in Review
1,770 of the 7,471 institutional investors tracked by Wall St. Rank reported a position in T-Mobile US (TMUS) for Q1 2025, worth a combined $128B — up 18% from $108B a quarter earlier.
Buyers outnumbered sellers: 246 funds opened new TMUS positions and 112 closed out — a net gain of 134 holders — while 635 added to existing stakes and 684 trimmed.
The largest buyer was Fidelity Investments, adding an estimated $719M. The largest seller was Dodge & Cox, cutting an estimated $875M.
- 1,770 institutional investors held T-Mobile US (TMUS) as of Q1 2025, up from 1,666 in Q4 2024.
- Funds reported $128B of T-Mobile US stock for Q1 2025, up 18% quarter-over-quarter.
- 246 funds opened new T-Mobile US positions in Q1 2025 and 112 closed out, a net change of +134 holders.
- The largest T-Mobile US buyer in Q1 2025 was Fidelity Investments, an estimated $719M added.
- The largest T-Mobile US seller in Q1 2025 was Dodge & Cox, an estimated $875M sold.
Based on aggregated 13F filings for Q1 2025.