T-Mobile US, Inc.
MX ˙ BMV ˙ US8725901040
SecurityMX:TMUS / T-Mobile US, Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership393,309 shares
Latest Disclosed Value $ 82,606,521
Fifth Third Bancorp reports 34.61% increase in ownership of TMUS / T-Mobile US, Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 393,309 shares of T-Mobile US, Inc. (MX:TMUS) valued at $82,606,521 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 292,188 shares of T-Mobile US, Inc.. This represents a change in shares of 34.61% 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)
2026-05-01 2026-03-31 13F T-MOBILE US COM 872590104 393,309 101,121 34.61 82,607 39.24 0.1510
2026-02-02 2025-12-31 13F T-MOBILE US COM 872590104 292,188 -2,669 -0.91 59,326 -15.95 0.1884
2025-11-07 2025-09-30 13F T-MOBILE US COM 872590104 294,857 -5,714 -1.90 70,583 -1.44 0.2257
2025-07-15 2025-06-30 13F T-MOBILE US COM 872590104 300,571 2,867 0.96 71,614 -9.81 0.2475
2025-04-15 2025-03-31 13F T-MOBILE US COM 872590104 297,704 8,410 2.91 79,401 24.34 0.3018
2025-01-21 2024-12-31 13F T-MOBILE US COM 872590104 289,294 -4,401 -1.50 63,856 5.36 0.2316
2024-10-17 2024-09-30 13F T-MOBILE US COM 872590104 293,695 7,193 2.51 60,607 20.07 0.2195
2024-07-22 2024-06-30 13F T-MOBILE US COM 872590104 286,502 11,899 4.33 50,476 12.62 0.1922
2024-04-23 2024-03-31 13F T-MOBILE US COM 872590104 274,603 68,528 33.25 44,821 35.65 0.1753
2024-01-19 2023-12-31 13F T-MOBILE US COM 872590104 206,075 30,819 17.59 33,040 34.62 0.1405
2023-10-31 2023-09-30 13F T-MOBILE US COM 872590104 175,256 7,312 4.35 24,545 5.22 0.1138
2023-07-26 2023-06-30 13F T-MOBILE US COM 872590104 167,944 11,454 7.32 23,327 2.92 0.1030
2023-04-24 2023-03-31 13F T-MOBILE US COM 872590104 156,490 1,877 1.21 22,666 4.72 0.1055
2023-01-25 2022-12-31 13F T-MOBILE US COM 872590104 154,613 7,917 5.40 21,646 9.97 0.1040
2022-10-25 2022-09-30 13F T-MOBILE US COM 872590104 146,696 11,404 8.43 19,682 8.13 0.1028
2022-08-04 2022-06-30 13F T-MOBILE US COM 872590104 135,292 20,592 17.95 18,202 23.64 0.0880
2022-04-19 2022-03-31 13F T-MOBILE US COM 872590104 114,700 -41,736 -26.68 14,722 -18.86 0.0601
2022-02-01 2021-12-31 13F T-MOBILE US COM 872590104 156,436 68,693 78.29 18,143 61.85 0.0705
2021-10-15 2021-09-30 13F T-MOBILE US COM 872590104 87,743 -72,096 -45.11 11,210 -51.57 0.0487
2021-08-06 2021-06-30 13F T-MOBILE US COM 872590104 159,839 68,809 75.59 23,149 102.97 0.1015
2021-05-07 2021-03-31 13F T-MOBILE US COM 872590104 91,030 10,328 12.80 11,405 4.80 0.0529
2021-02-16 2020-12-31 13F T-MOBILE US COM 872590104 80,702 1,046 1.31 10,883 19.48 0.0535
2020-11-09 2020-09-30 13F T-MOBILE US COM 872590104 79,656 -58 -0.07 9,109 9.72 0.0503
2020-08-05 2020-06-30 13F T-MOBILE US COM 872590104 79,714 -9,374 -10.52 8,302 11.08 0.0498
2020-05-05 2020-03-31 13F T MOBILE US COM 872590104 89,088 1,317 1.50 7,474 8.59 0.0533
2020-02-14 2019-12-31 13F T MOBILE US COM 872590104 87,771 -776 -0.88 6,883 -1.32 0.0383
2019-11-14 2019-09-30 13F T MOBILE US COM 872590104 88,547 -3,350 -3.65 6,975 2.38 0.0418
2019-08-07 2019-06-30 13F T MOBILE US COM 872590104 91,897 -25,911 -21.99 6,813 -16.31 0.0416
2019-05-14 2019-03-31 13F T MOBILE US COM 872590104 117,808 -20,067 -14.55 8,141 -7.17 0.0522
2019-02-14 2018-12-31 13F T MOBILE US COM 872590104 137,875 56,747 69.95 8,770 54.02 0.0638
2018-11-14 2018-09-30 13F T MOBILE US COM 872590104 81,128 -1,711 -2.07 5,694 15.03 0.0362
2018-08-14 2018-06-30 13F T MOBILE US COM 872590104 82,839 -3,040 -3.54 4,950 -5.57 0.0336
2018-05-15 2018-03-31 13F T MOBILE US COM 872590104 85,879 3,419 4.15 5,242 0.10 0.0357
2018-02-14 2017-12-31 13F T MOBILE US COM 872590104 82,460 -3,076 -3.60 5,237 -0.70 0.0356
2017-11-14 2017-09-30 13F T MOBILE US COM 872590104 85,536 -2,987 -3.37 5,274 -1.71 0.0377
2017-08-11 2017-06-30 13F T MOBILE US COM 872590104 88,523 86,793 5,016.94 5,366 4,691.07 0.0395
2017-05-12 2017-03-31 13F T MOBILE US COM 872590104 1,730 680 64.76 112 86.67 0.0008
2017-02-13 2016-12-31 13F/A-1 T MOBILE US COM 872590104 1,050 -1 -0.10 60 22.45 0.0005
2017-02-09 2016-12-31 13F T MOBILE US COM 872590104 1,051 0 49 0.0004
2016-11-10 2016-09-30 13F T MOBILE US COM 872590104 1,051 0 0.00 49 8.89 0.0004
2016-08-11 2016-06-30 13F T MOBILE US COM 872590104 1,051 -3,000 -74.06 45 -70.97 0.0004
2016-05-13 2016-03-31 13F T MOBILE US COM 872590104 4,051 2,638 186.69 155 181.82 0.0013
2016-02-16 2015-12-31 13F T MOBILE US COM 872590104 1,413 615 77.07 55 71.88 0.0005
2015-11-13 2015-09-30 13F T MOBILE US COM 872590104 798 0 0.00 32 3.23 0.0003
2015-08-14 2015-06-30 13F T MOBILE US COM 872590104 798 0 0.00 31 24.00 0.0003
2015-05-14 2015-03-31 13F T MOBILE US COM 872590104 798 0 0.00 25 19.05 0.0002
2015-02-13 2014-12-31 13F T MOBILE US COM 872590104 798 798 21 0.0002
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.