T-Mobile US, Inc.
MX ˙ BMV ˙ US8725901040
SecurityMX:TMUS / T-Mobile US, Inc.
InstitutionFiduciary Trust Co
Latest Disclosed Ownership10,969 shares
Latest Disclosed Value $ 2,303,715
Fiduciary Trust Co reports 10.56% decrease in ownership of TMUS / T-Mobile US, Inc.

On May 15, 2026 - Fiduciary Trust Co filed a 13F-HR form disclosing ownership of 10,969 shares of T-Mobile US, Inc. (MX:TMUS) valued at $2,303,715 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 12,264 shares of T-Mobile US, Inc.. This represents a change in shares of -10.56% during the quarter.

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)
2026-05-15 2026-03-31 13F T-MOBILE US COM 872590104 10,969 -1,295 -10.56 2,304 -7.51 0.0272
2026-02-13 2025-12-31 13F T MOBILE US COM 872590104 12,264 489 4.15 2,490 -11.64 0.0283
2025-11-14 2025-09-30 13F T MOBILE US COM 872590104 11,775 1,044 9.73 2,819 10.25 0.0319
2025-08-14 2025-06-30 13F T MOBILE US COM 872590104 10,731 1,005 10.33 2,557 -1.46 0.0315
2025-05-15 2025-03-31 13F T MOBILE US COM 872590104 9,726 600 6.57 2,594 28.80 0.0340
2025-02-14 2024-12-31 13F T MOBILE US COM 872590104 9,126 540 6.29 2,014 13.72 0.0266
2024-11-14 2024-09-30 13F T MOBILE US COM 872590104 8,586 1,644 23.68 1,772 44.81 0.0247
2024-08-14 2024-06-30 13F T MOBILE US COM 872590104 6,942 72 1.05 1,223 9.10 0.0184
2024-05-14 2024-03-31 13F T MOBILE US COM 872590104 6,870 860 14.31 1,121 16.41 0.0172
2024-02-12 2023-12-31 13F T MOBILE US COM 872590104 6,010 -123 -2.01 964 12.24 0.0161
2023-11-14 2023-09-30 13F T MOBILE US COM 872590104 6,133 910 17.42 859 18.34 0.0157
2023-08-01 2023-06-30 13F T MOBILE US COM 872590104 5,223 -562 -9.71 725 -13.38 0.0128
2023-05-15 2023-03-31 13F T MOBILE US COM 872590104 5,785 -89 -1.52 838 1.82 0.0155
2023-02-14 2022-12-31 13F T MOBILE US COM 872590104 5,874 1,189 25.38 822 30.89 0.0160
2022-11-14 2022-09-30 13F T MOBILE US COM 872590104 4,685 2,159 85.47 628 84.71 0.0136
2022-08-12 2022-06-30 13F T MOBILE US COM 872590104 2,526 2,526 340 0.0072
2022-02-14 2021-12-31 13F T MOBILE US COM 872590104 0 -2,382 -100.00 0 -100.00
2021-11-12 2021-09-30 13F T MOBILE US COM 872590104 2,382 -348 -12.75 305 -22.78 0.0054
2021-08-16 2021-06-30 13F T MOBILE US COM 872590104 2,730 -1,801 -39.75 395 -30.46 0.0076
2021-05-19 2021-03-31 13F T MOBILE US COM 872590104 4,531 2,100 86.38 568 73.17 0.0115
2021-01-26 2020-12-31 13F T MOBILE US COM 872590104 2,431 0 0.00 328 17.99 0.0068
2020-11-13 2020-09-30 13F T MOBILE US COM 872590104 2,431 0 0.00 278 9.88 0.0065
2020-08-13 2020-06-30 13F T MOBILE US COM 872590104 2,431 2,431 253 0.0063
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.