T-Mobile 美國公司
MX ˙ BMV ˙ US8725901040
SecurityMX:TMUS / T-Mobile US, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership622,311 shares
Latest Disclosed Value $ 130,704,853
Janus Henderson Group Plc reports 44.76% decrease in ownership of TMUS / T-Mobile US, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 622,311 shares of T-Mobile US, Inc. (MX:TMUS) valued at $130,704,853 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,126,529 shares of T-Mobile US, Inc.. This represents a change in shares of -44.76% 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)
2026-05-18 2026-03-31 13F/A-1 T-MOBILE US COM 872590104 622,311 -504,218 -44.76 130,705 -42.85 0.0624
2026-05-15 2026-03-31 13F T-MOBILE US COM 872590104 622,311 -504,218 130,705 0.0242
2026-02-17 2025-12-31 13F T-MOBILE US COM 872590104 1,126,529 -744,887 -39.80 228,714 -48.94 0.1024
2025-11-14 2025-09-30 13F T-MOBILE US COM 872590104 1,871,416 -153,613 -7.59 447,959 -7.16 0.2045
2025-08-14 2025-06-30 13F T-MOBILE US COM 872590104 2,025,029 223,182 12.39 482,521 1.07 0.2365
2025-05-15 2025-03-31 13F T-MOBILE US COM 872590104 1,801,847 -431,878 -19.33 477,392 -3.18 0.2617
2025-02-14 2024-12-31 13F T-MOBILE US COM 872590104 2,233,725 89,999 4.20 493,094 11.47 0.2506
2024-11-14 2024-09-30 13F T-MOBILE US COM 872590104 2,143,726 -105,551 -4.69 442,375 11.64 0.2264
2024-08-14 2024-06-30 13F T-MOBILE US COM 872590104 2,249,277 -262,680 -10.46 396,266 -3.34 0.2122
2024-05-15 2024-03-31 13F T-MOBILE US COM 872590104 2,511,957 -166,056 -6.20 409,967 -4.52 0.2236
2024-02-14 2023-12-31 13F T-MOBILE US COM 872590104 2,678,013 -1,245,126 -31.74 429,385 -21.85 0.2561
2023-11-14 2023-09-30 13F T-MOBILE US COM 872590104 3,923,139 -1,219,905 -23.72 549,412 -23.09 0.3598
2023-08-14 2023-06-30 13F T-MOBILE US COM 872590104 5,143,044 98,046 1.94 714,364 -2.23 0.4443
2023-05-15 2023-03-31 13F T-MOBILE US COM 872590104 5,044,998 119,609 2.43 730,669 5.96 0.4818
2023-02-14 2022-12-31 13F T-MOBILE US COM 872590104 4,925,389 366,615 8.04 689,560 12.73 0.4926
2023-01-13 2022-09-30 13F/A-1 T-MOBILE US COM 872590104 4,558,774 1,677,363 58.21 611,672 57.76 0.4583
2022-11-14 2022-09-30 13F T-MOBILE US COM 872590104 4,558,774 1,677,363 611,672 0.4579
2022-08-15 2022-06-30 13F T-MOBILE US COM 872590104 2,881,411 -413,052 -12.54 387,729 -8.30 0.2673
2022-05-16 2022-03-31 13F T-MOBILE US COM 872590104 3,294,463 650,163 24.59 422,844 37.88 0.2042
2022-02-14 2021-12-31 13F T-MOBILE US COM 872590104 2,644,300 -2,760,967 -51.08 306,686 -55.59 0.1279
2021-11-16 2021-09-30 13F T-MOBILE US COM 872590104 5,405,267 -1,234,216 -18.59 690,574 -28.18 0.3020
2021-08-16 2021-06-30 13F T-MOBILE US COM 872590104 6,639,483 -331,051 -4.75 961,601 10.10 0.4116
2021-05-17 2021-03-31 13F T-MOBILE US COM 872590104 6,970,534 -2,168,551 -23.73 873,350 -29.13 0.3987
2021-02-16 2020-12-31 13F T-MOBILE US COM 872590104 9,139,085 -469,326 -4.88 1,232,397 12.16 0.5726
2020-11-16 2020-09-30 13F T-MOBILE US COM 872590104 9,608,411 -120,050 -1.23 1,098,811 8.45 0.5729
2020-08-14 2020-06-30 13F T-MOBILE US COM 872590104 9,728,461 5,529,047 131.66 1,013,221 187.58 0.5687
2020-05-14 2020-03-31 13F T MOBILE US COM 872590104 4,199,414 914,581 27.84 352,332 36.78 0.2425
2020-02-18 2019-12-31 13F T MOBILE US COM 872590104 3,284,833 1,520,751 86.21 257,595 85.38 0.1319
2019-11-14 2019-09-30 13F T MOBILE US COM 872590104 1,764,082 228,550 14.88 138,956 22.06 0.0753
2019-07-31 2019-06-30 13F T MOBILE US COM 872590104 1,535,532 616,635 67.11 113,838 79.28 0.0620
2019-04-30 2019-03-31 13F T MOBILE US COM 872590104 918,897 207,655 29.20 63,496 40.34 0.0352
2019-02-06 2018-12-31 13F T MOBILE US COM 872590104 711,242 283,616 66.32 45,244 50.76 0.0289
2018-11-09 2018-09-30 13F T MOBILE US COM 872590104 427,626 49,740 13.16 30,011 32.92 0.0160
2018-08-10 2018-06-30 13F T MOBILE US COM 872590104 377,886 -82,300 -17.88 22,579 -19.62 0.0129
2018-05-14 2018-03-31 13F T MOBILE US COM 872590104 460,186 -2,160,192 -82.44 28,089 -83.12 0.0166
2018-03-12 2017-12-31 13F/A-1 T MOBILE US COM 872590104 2,620,378 -1,088,723 -29.35 166,420 -27.23 0.1025
2018-02-09 2017-12-31 13F T MOBILE US COM 872590104 2,620,378 -1,088,723 166,420
2017-11-14 2017-09-30 13F T MOBILE US COM 872590104 3,709,101 -770,311 -17.20 228,704 -15.78 0.1466
2017-08-17 2017-06-30 13F/A-1 T MOBILE US COM 872590104 4,479,412 4,443,083 12,230.13 271,542 11,469.75 0.1851
2017-08-14 2017-06-30 13F T MOBILE US COM 872590104 4,479,412 4,443,083 271,542
2017-05-03 2017-03-31 13F T MOBILE US COM 872590104 36,329 0 0.00 2,347 12.30 0.0165
2017-01-30 2016-12-31 13F T MOBILE US COM 872590104 36,329 -365 -0.99 2,090 21.87 0.0154
2016-10-24 2016-09-30 13F T MOBILE US COM 872590104 36,694 36,694 0.00 1,715 0.0126
2016-05-12 2016-03-31 13F T MOBILE US COM 872590104 0 0 0 0.0000
2015-11-16 2015-09-30 13F T MOBILE US COM 872590104 0 -34,958 -100.00 0 -100.00
2015-08-17 2015-06-30 13F T MOBILE US COM 872590104 34,958 0 0.00 1,355 22.29 0.0106
2015-06-02 2015-03-31 13F/A-1 T MOBILE US COM 872590104 34,958 0 0.00 1,108 17.75 0.0085
2015-05-15 2015-03-31 13F T MOBILE US COM 872590104 34,958 1,108
2015-02-12 2014-12-31 13F T MOBILE US COM 872590104 34,958 0 0.00 941 -6.74 0.0068
2014-11-12 2014-09-30 13F T-MOBILE US COM 872590104 34,958 0 0.00 1,009 -14.13 0.0095
2014-08-13 2014-06-30 13F T-MOBILE US COM 872590104 34,958 0 0.00 1,175 1.73 0.0110
2014-05-08 2014-03-31 13F T-MOBILE US COM 872590104 34,958 5,500 18.67 1,155 16.55 0.0112
2014-01-14 2013-12-31 13F T-MOBILE US COM 872590104 29,458 21,250 258.89 991 365.26 0.0100
2013-11-12 2013-09-30 13F T-MOBILE US COM 872590104 8,208 0 0.00 213 9.23 0.0023
2013-08-15 2013-06-30 13F T-MOBILE US COM 872590104 8,208 8,208 195 0.0023
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.