T-Mobile US, Inc.
MX ˙ BMV ˙ US8725901040
SecurityMX:TMUS / T-Mobile US, Inc.
InstitutionAvestar Capital, LLC
Latest Disclosed Ownership4,690 shares
Latest Disclosed Value $ 985,041
Avestar Capital, LLC reports 5.56% decrease in ownership of TMUS / T-Mobile US, Inc.

On May 13, 2026 - Avestar Capital, LLC filed a 13F-HR form disclosing ownership of 4,690 shares of T-Mobile US, Inc. (MX:TMUS) valued at $985,041 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 4,966 shares of T-Mobile US, Inc.. This represents a change in shares of -5.56% 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)
2026-05-13 2026-03-31 13F T-MOBILE US COM 872590104 4,690 -276 -5.56 985 -2.28 0.0633
2026-02-10 2025-12-31 13F T-MOBILE US COM 872590104 4,966 -283 -5.39 1,008 -19.75 0.0653
2025-11-07 2025-09-30 13F T-MOBILE US COM 872590104 5,249 -827 -13.61 1,257 -13.20 0.0823
2025-08-13 2025-06-30 13F T-MOBILE US COM 872590104 6,076 1,081 21.64 1,448 8.63 0.0989
2025-05-14 2025-03-31 13F T-MOBILE US COM 872590104 4,995 280 5.94 1,332 28.08 0.1157
2025-01-29 2024-12-31 13F T-MOBILE US COM 872590104 4,715 274 6.17 1,041 13.54 0.0885
2024-11-13 2024-09-30 13F T-MOBILE US COM 872590104 4,441 -10 -0.22 916 16.84 0.0943
2024-08-08 2024-06-30 13F T-MOBILE US COM 872590104 4,451 696 18.54 784 28.10 0.0805
2024-05-10 2024-03-31 13F T-MOBILE US COM 872590104 3,755 858 29.62 613 31.90 0.0643
2024-02-12 2023-12-31 13F T-MOBILE US COM 872590104 2,897 873 43.13 464 63.96 0.0526
2023-10-20 2023-09-30 13F T-MOBILE US COM 872590104 2,024 336 19.91 283 20.94 0.0403
2023-08-02 2023-06-30 13F T-MOBILE US COM 872590104 1,688 1,688 234 0.0376
2022-02-01 2021-12-31 13F T-MOBILE US COM 872590104 0 -4,232 -100.00 0 -100.00
2021-11-09 2021-09-30 13F T-MOBILE US COM 872590104 4,232 -5 -0.12 541 -11.89 0.0692
2021-08-03 2021-06-30 13F T-MOBILE US COM 872590104 4,237 -163 -3.70 614 5.68 0.0823
2021-05-03 2021-03-31 13F T-MOBILE US COM 872590104 4,400 -111 -2.46 581 -4.44 0.1296
2021-02-01 2020-12-31 13F T-MOBILE US COM 872590104 4,511 76 1.71 608 22.58 0.1688
2020-10-29 2020-09-30 13F T-MOBILE US COM 872590104 4,435 -390 -8.08 496 -1.39 0.1635
2020-07-29 2020-06-30 13F T-MOBILE US COM 872590104 4,825 4,825 503 0.2223
2019-11-15 2019-09-30 13F/A-1 T MOBILE US INC COM USD0.00001 COM 872590104 0 -7 -100.00 0 0.0000
2019-08-06 2019-06-30 13F T MOBILE US INC COM USD0.00001 COM 872590104 7 0 0.00 0 0.0000
2019-05-09 2019-03-31 13F T MOBILE US INC COM USD0.00001 COM 872590104 7 0 0.00 0 0.0000
2019-01-25 2018-12-31 13F T MOBILE US INC COM USD0.00001 COM 872590104 7 0 0.00 0 0.0000
2018-10-23 2018-09-30 13F T MOBILE US INC COM COM 872590104 7 0 0.00 0 0.0000
2018-08-10 2018-06-30 13F T MOBILE US INC COM COM 872590104 7 0 0.00 0 0.0000
2018-05-10 2018-03-31 13F T MOBILE US INC COM COM 872590104 7 7 0 0.0000
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.