T-Mobile US, Inc.
US ˙ NasdaqGS ˙ US8725901040

SecurityTMUS / T-Mobile US, Inc.
InstitutionWaldron Private Wealth LLC
Latest Disclosed Ownership6,607 shares
Latest Disclosed Value $ 1,387,672
Waldron Private Wealth LLC reports 2.77% increase in ownership of TMUS / T-Mobile US, Inc.

On April 10, 2026 - Waldron Private Wealth LLC filed a 13F-HR form disclosing ownership of 6,607 shares of T-Mobile US, Inc. (US:TMUS) valued at $1,387,668 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 6,429 shares of T-Mobile US, Inc.. This represents a change in shares of 2.77% during the quarter. The current value of the position is $1,198,840 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-10 2026-03-31 13F T-MOBILE US COM 872590104 6,607 178 2.77 1,388 6.28 0.0541
2026-01-14 2025-12-31 13F T-MOBILE US COM 872590104 6,429 693 12.08 1,305 -4.95 0.0516
2025-10-30 2025-09-30 13F T-MOBILE US COM 872590104 5,736 117 2.08 1,373 2.62 0.0556
2025-07-31 2025-06-30 13F T-MOBILE US COM 872590104 5,619 -59 -1.04 1,339 -11.62 0.0584
2025-05-08 2025-03-31 13F T-MOBILE US COM 872590104 5,678 -3,162 -35.77 1,514 -22.40 0.0715
2025-01-24 2024-12-31 13F T-MOBILE US COM 872590104 8,840 29 0.33 1,951 7.32 0.0785
2024-10-21 2024-09-30 13F T-MOBILE US COM 872590104 8,811 34 0.39 1,818 17.59 0.0755
2024-07-31 2024-06-30 13F T-MOBILE US INC COM COM 872590104 8,777 -61 -0.69 1,546 7.21 0.0692
2024-05-09 2024-03-31 13F T-MOBILE US INC COM COM 872590104 8,838 9 0.10 1,443 1.91 0.0651
2024-08-29 2023-12-31 13F/A-1 T-MOBILE US INC COM COM 872590104 8,829 238 2.77 1,416 17.62 0.0673
2024-01-30 2023-12-31 13F T-MOBILE US INC COM COM 872590104 8,829 238 1 0.0673
2024-08-29 2023-09-30 13F/A-1 T-MOBILE US INC COM COM 872590104 8,591 658 8.29 1,203 9.26 0.0625
2023-10-26 2023-09-30 13F T-MOBILE US INC COM COM 872590104 8,591 658 1 0.0625
2024-08-29 2023-06-30 13F/A-1 T-MOBILE US INC COM COM 872590104 7,933 -516 -6.11 1,102 -9.98 0.0550
2023-08-07 2023-06-30 13F T-MOBILE US INC COM COM 872590104 7,933 -516 1 0.0549
2024-08-29 2023-03-31 13F/A-1 T-MOBILE US INC COM COM 872590104 8,449 40 0.48 1,224 122,200.00 0.0596
2023-05-02 2023-03-31 13F T-MOBILE US INC COM COM 872590104 8,449 40 1 0.0595
2023-02-08 2022-12-31 13F T-MOBILE US INC COM COM 872590104 8,409 0 0.00 1 -99.91 0.0701
2022-11-14 2022-09-30 13F T-MOBILE US INC COM COM 872590104 8,409 -1,735 -17.10 1,128 -17.30 0.0701
2022-08-03 2022-06-30 13F T-MOBILE US INC COM COM 872590104 10,144 666 7.03 1,364 12.17 0.0765
2022-05-04 2022-03-31 13F T-MOBILE US INC COM COM 872590104 9,478 248 2.69 1,216 13.64 0.0624
2022-02-02 2021-12-31 13F T-MOBILE US INC COM COM 872590104 9,230 9,230 1,070 0.0528
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.