T-Mobile 美國公司
MX ˙ BMV ˙ US8725901040
SecurityMX:TMUS / T-Mobile US, Inc.
InstitutionWestpac Banking Corp
Latest Disclosed Ownership4,805 shares
Latest Disclosed Value $ 1,009,194
Westpac Banking Corp reports 5.91% decrease in ownership of TMUS / T-Mobile US, Inc.

On May 11, 2026 - Westpac Banking Corp filed a 13F-HR form disclosing ownership of 4,805 shares of T-Mobile US, Inc. (MX:TMUS) valued at $1,009,194 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 5,107 shares of T-Mobile US, Inc.. This represents a change in shares of -5.91% 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)
2026-05-11 2026-03-31 13F T-MOBILE US COM 872590104 4,805 -302 -5.91 1,009 -2.61 0.0351
2026-02-10 2025-12-31 13F T-MOBILE US COM 872590104 5,107 499 10.83 1,037 -6.07 0.0655
2025-11-14 2025-09-30 13F/A-1 T-MOBILE US INC USD 0.0001 COM 872590104 4,608 376 8.88 1,103 9.42 0.0684
2025-11-12 2025-09-30 13F T-MOBILE US INC USD 0.0001 COM 872590104 4,608 376 1,103 0.0277
2025-08-11 2025-06-30 13F T-MOBILE US COM 872590104 4,232 -67 -1.56 1,008 -12.04 0.0674
2025-05-13 2025-03-31 13F T-MOBILE US COM 872590104 4,299 -6,140 -58.82 1,147 -50.26 0.0844
2025-02-12 2024-12-31 13F T-MOBILE US COM 872590104 10,439 2,113 25.38 2,304 34.11 0.1529
2024-11-08 2024-09-30 13F T-MOBILE US COM 872590104 8,326 4,287 106.14 1,718 141.63 0.1152
2024-08-14 2024-06-30 13F/A-1 T-MOBILE US COM 872590104 4,039 0 0.00 712 7.89 0.0564
2024-08-13 2024-06-30 13F T-MOBILE US COM 872590104 176 -3,863 712 0.0245
2024-05-09 2024-03-31 13F T-MOBILE US COM 872590104 4,039 -148 -3.53 659 -1.79 0.0502
2024-02-08 2023-12-31 13F T-MOBILE US COM 872590104 4,187 -29,395 -87.53 671 -85.73 0.0553
2023-11-13 2023-09-30 13F T-MOBILE US COM 872590104 33,582 4,026 13.62 4,703 14.57 0.3519
2023-08-10 2023-06-30 13F T-MOBILE US COM 872590104 29,556 -220,605 -88.19 4,105 -88.67 0.2897
2023-05-04 2023-03-31 13F T-MOBILE US COM 872590104 250,161 -45,858 -15.49 36,233 -12.57 0.4871
2023-02-06 2022-12-31 13F T-MOBILE US COM 872590104 296,019 -87,474 -22.81 41,443 -19.46 0.6126
2022-11-08 2022-09-30 13F T-MOBILE US COM 872590104 383,493 -49,876 -11.51 51,453 -11.75 0.7844
2022-08-10 2022-06-30 13F T-MOBILE US COM 872590104 433,369 62,344 16.80 58,305 22.44 0.7596
2022-05-11 2022-03-31 13F T-MOBILE US COM 872590104 371,025 -86,308 -18.87 47,621 -10.22 0.5463
2022-02-08 2021-12-31 13F T-MOBILE US COM 872590104 457,333 54,456 13.52 53,041 3.05 0.5495
2021-10-27 2021-09-30 13F T-MOBILE US COM 872590104 402,877 8,659 2.20 51,472 -9.85 0.5502
2021-08-11 2021-06-30 13F T-MOBILE US COM 872590104 394,218 221,417 128.13 57,095 163.71 0.5733
2021-05-13 2021-03-31 13F T-MOBILE US COM 872590104 172,801 -12,476 -6.73 21,650 -13.34 0.2389
2021-02-11 2020-12-31 13F T-MOBILE US COM 872590104 185,277 -3,967 -2.10 24,985 15.45 0.2836
2020-11-10 2020-09-30 13F T-MOBILE US COM 872590104 189,244 -4,041 -2.09 21,642 7.51 0.2933
2020-08-12 2020-06-30 13F T-MOBILE US COM 872590104 193,285 -52,323 -21.30 20,131 -2.31 0.3001
2020-05-14 2020-03-31 13F T MOBILE US COM 872590104 245,608 54,758 28.69 20,607 37.69 0.3551
2020-02-11 2019-12-31 13F T MOBILE US COM 872590104 190,850 166,357 679.20 14,966 675.84 0.1926
2019-11-13 2019-09-30 13F T MOBILE US COM 872590104 24,493 0 0.00 1,929 6.28 0.0268
2019-08-01 2019-06-30 13F T MOBILE US COM 872590104 24,493 0 0.00 1,816 7.27 0.0277
2019-05-14 2019-03-31 13F T MOBILE US COM 872590104 24,493 0 0.00 1,692 8.60 0.0279
2019-02-07 2018-12-31 13F T MOBILE US COM 872590104 24,493 0 0.00 1,558 -9.31 0.0266
2018-11-13 2018-09-30 13F T MOBILE US COM 872590104 24,493 1,037 4.42 1,719 22.63 0.0295
2018-07-18 2018-06-30 13F T MOBILE US COM 872590104 23,456 6,362 37.22 1,401 34.32 0.0269
2018-05-01 2018-03-31 13F T MOBILE US COM 872590104 17,094 0 0.00 1,043 -3.87 0.0208
2018-01-18 2017-12-31 13F T MOBILE US COM 872590104 17,094 0 0.00 1,086 2.94 0.0247
2017-10-30 2017-09-30 13F T MOBILE US COM 872590104 17,094 -432 -2.46 1,054 -0.75 0.0232
2017-08-09 2017-06-30 13F T MOBILE US COM 872590104 17,526 0 0.00 1,062 -6.18 0.0234
2017-05-18 2017-03-31 13F/A-1 T MOBILE US COM 872590104 17,526 0 0.00 1,132 7.30 0.0091
2017-05-11 2017-03-31 13F T MOBILE US COM 872590104 13,841 530
2017-02-09 2016-12-31 13F T MOBILE US COM 872590104 17,526 0 0.00 1,056 28.97 0.0100
2016-11-10 2016-09-30 13F T MOBILE US COM 872590104 17,526 0 0.00 819 7.92 0.0088
2016-08-10 2016-06-30 13F T MOBILE US COM 872590104 17,526 -21,612 -55.22 758 -49.40 0.0083
2016-05-13 2016-03-31 13F T MOBILE US COM 872590104 39,138 25,297 182.77 1,499 176.89 0.0163
2016-02-11 2015-12-31 13F T MOBILE US COM 872590104 13,841 2 0.01 541 -1.64 0.0060
2015-11-16 2015-09-30 13F/A-1 T MOBILE US COM 872590104 13,839 11,970 640.45 551 663.89 0.0061
2015-11-12 2015-09-30 13F T MOBILE US COM 872590104 13,839 551
2015-08-12 2015-06-30 13F T MOBILE US COM 872590104 1,869 -12,187 -86.70 72 -85.54 0.0007
2015-05-12 2015-03-31 13F T MOBILE US COM 872590104 14,056 -2,400 -14.58 499 12.42 0.0043
2015-02-11 2014-12-31 13F T MOBILE US COM 872590104 16,456 -2,150 -11.56 443 -17.50 0.0042
2014-11-12 2014-09-30 13F T-MOBILE US COM 872590104 18,606 0 0.00 537 -14.08 0.0052
2014-08-11 2014-06-30 13F T-MOBILE US COM 872590104 18,606 445 2.45 626 4.34 0.0060
2014-05-12 2014-03-31 13F T-MOBILE US COM 872590104 18,161 -820 -4.32 600 -6.11 0.0064
2014-02-13 2013-12-31 13F T-MOBILE US COM 872590104 18,981 4,422 30.37 638 68.78 0.0073
2013-11-12 2013-09-30 13F T-MOBILE US COM 872590104 14,559 -6,399 -30.53 378 -20.25 0.0047
2013-08-14 2013-06-30 13F T-MOBILE US COM 872590104 20,958 20,958 475 0.0073
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.