T-모바일 US, Inc.
MX ˙ BMV ˙ US8725901040
SecurityMX:TMUS / T-Mobile US, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership14,387,032 shares
Latest Disclosed Value $ 3,021,708,941
Morgan Stanley reports 14.34% increase in ownership of TMUS / T-Mobile US, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 14,387,032 shares of T-Mobile US, Inc. (MX:TMUS) valued at $3,021,708,941 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 12,582,682 shares of T-Mobile US, Inc.. This represents a change in shares of 14.34% 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 14,387,032 1,804,350 14.34 3,021,709 18.28 0.1821
2026-05-27 2025-12-31 13F/A-1 T-MOBILE US COM 872590104 12,582,682 -1,229,361 -8.90 2,554,789 -22.73 0.1525
2026-02-13 2025-12-31 13F T-MOBILE US COM 872590104 12,582,682 -1,229,361 2,554,789 0.1525
2026-05-27 2025-09-30 13F/A-1 T-MOBILE US COM 872590104 13,812,043 595,787 4.51 3,306,327 5.00 0.2002
2025-11-14 2025-09-30 13F T-MOBILE US COM 872590104 13,812,043 595,787 3,306,327 0.2002
2025-08-15 2025-06-30 13F T-MOBILE US COM 872590104 13,216,256 247,475 1.91 3,148,906 -8.96 0.2051
2025-05-15 2025-03-31 13F T-MOBILE US COM 872590104 12,968,781 -491,960 -3.65 3,458,904 16.41 0.2473
2025-05-15 2024-12-31 13F/A-1 T-MOBILE US COM 872590104 13,460,741 85,124 0.64 2,971,190 7.64 0.2082
2025-02-14 2024-12-31 13F T-MOBILE US COM 872590104 13,460,741 85,124 2,971,190 0.2081
2025-05-14 2024-09-30 13F/A-2 T-MOBILE US COM 872590104 13,375,617 124,130 0.94 2,760,193 18.23 0.2001
2025-02-14 2024-09-30 13F/A-1 T-MOBILE US COM 872590104 13,375,617 124,130 2,760,193 0.2001
2024-11-14 2024-09-30 13F T-MOBILE US COM 872590104 13,375,617 124,130 2,760,193 0.0238
2025-05-14 2024-06-30 13F/A-2 T-MOBILE US COM 872590104 13,251,487 -2,111,546 -13.74 2,334,647 -6.90 0.1807
2024-10-17 2024-06-30 13F/A-1 T-MOBILE US COM 872590104 13,251,487 -2,111,546 2,334,647 0.1806
2024-08-14 2024-06-30 13F T-MOBILE US COM 872590104 13,251,487 -2,111,546 2,334,647 0.1807
2024-10-17 2024-03-31 13F/A-2 T-MOBILE US COM 872590104 15,363,033 832,612 5.73 2,507,555 7.64 0.2012
2024-08-16 2024-03-31 13F/A-1 T-MOBILE US COM 872590104 15,363,033 832,612 2,507,555 0.0236
2024-05-15 2024-03-31 13F T-MOBILE US COM 872590104 15,363,033 832,612 2,507,555 0.2012
2024-08-16 2023-12-31 13F/A-1 T-MOBILE US COM 872590104 14,530,421 3,274,931 29.10 2,329,663 47.79 0.2053
2024-02-13 2023-12-31 13F T-MOBILE US COM 872590104 14,530,421 3,274,931 2,329,663 0.2053
2023-11-15 2023-09-30 13F T-MOBILE US COM 872590104 11,255,490 104,490 0.94 1,576,332 1.77 0.1603
2023-08-14 2023-06-30 13F T-MOBILE US COM 872590104 11,151,000 229,815 2.10 1,548,874 -2.08 0.1527
2023-05-15 2023-03-31 13F T-MOBILE US COM 872590104 10,921,185 -63,371 -0.58 1,581,825 2.86 0.1696
2023-02-14 2022-12-31 13F T-MOBILE US COM 872590104 10,984,556 1,742,108 18.85 1,537,838 24.01 0.1747
2022-11-14 2022-09-30 13F T-MOBILE US COM 872590104 9,242,448 878,932 10.51 1,240,059 10.21 0.1690
2022-10-27 2022-06-30 13F/A-1 T-MOBILE US COM 872590104 8,363,516 2,027,440 32.00 1,125,227 38.36 0.1461
2022-08-15 2022-06-30 13F T-MOBILE US COM 872590104 8,363,516 2,027,440 1,125,227 0.1461
2022-10-27 2022-03-31 13F/A-1 T-MOBILE US COM 872590104 6,336,076 -46,033 -0.72 813,236 9.87 0.1097
2022-05-13 2022-03-31 13F T-MOBILE US COM 872590104 6,336,076 -46,033 813,236 0.1097
2022-02-14 2021-12-31 13F T-MOBILE US COM 872590104 6,382,109 1,190,860 22.94 740,196 11.60 0.0914
2021-11-15 2021-09-30 13F T-MOBILE US COM 872590104 5,191,249 -277,583 -5.08 663,233 -16.26 0.0893
2021-08-23 2021-06-30 13F/A-1 T-MOBILE US COM 872590104 5,468,832 620,087 12.79 792,053 30.38 0.1045
2021-08-16 2021-06-30 13F T-MOBILE US COM 872590104 5,468,832 620,087 792,053 0.0217
2021-05-17 2021-03-31 13F T-MOBILE US COM 872590104 4,848,745 1,858,726 62.16 607,499 50.67 0.0892
2021-02-16 2020-12-31 13F T-MOBILE US COM 872590104 2,990,019 451,438 17.78 403,205 38.89 0.0623
2020-11-13 2020-09-30 13F T-MOBILE US COM 872590104 2,538,581 354,826 16.25 290,312 27.64 0.0562
2020-08-14 2020-06-30 13F T-MOBILE US COM 872590104 2,183,755 449,952 25.95 227,438 56.35 0.0503
2020-05-26 2020-03-31 13F/A-1 T MOBILE US COM 872590104 1,733,803 15,297 0.89 145,467 7.94 0.0395
2020-05-15 2020-03-31 13F T MOBILE US COM 872590104 1,733,803 15,297 145,467 11,174.8981
2020-02-14 2019-12-31 13F T MOBILE US COM 872590104 1,718,506 80,636 4.92 134,765 4.46 0.0313
2019-11-14 2019-09-30 13F T MOBILE US COM 872590104 1,637,870 -353,001 -17.73 129,016 -12.59 0.0342
2019-08-14 2019-06-30 13F T MOBILE US COM 872590104 1,990,871 -359,649 -15.30 147,604 -9.12 0.0393
2019-05-15 2019-03-31 13F T MOBILE US COM 872590104 2,350,520 -800,144 -25.40 162,421 -18.96 0.0460
2019-02-14 2018-12-31 13F T MOBILE US COM 872590104 3,150,664 -1,405,606 -30.85 200,412 -37.32 0.0600
2019-04-23 2018-09-30 13F/A-2 T MOBILE US COM 872590104 4,556,270 -1,225,845 -21.20 319,758 -7.45 0.0800
2018-11-20 2018-09-30 13F/A-1 T MOBILE US COM 872590104 4,556,270 0 319,758 0.0800
2018-11-14 2018-09-30 13F T MOBILE US COM 872590104 4,556,270 -1,225,845 319,758
2019-04-23 2018-06-30 13F/A-1 T MOBILE US COM 872590104 5,782,115 1,781,530 44.53 345,483 41.48 0.0933
2018-08-14 2018-06-30 13F T MOBILE US COM 872590104 5,782,115 1,781,530 345,483
2019-04-23 2018-03-31 13F/A-1 T MOBILE US COM 872590104 4,000,585 -16,285 -0.41 244,195 -4.28 0.0678
2018-05-14 2018-03-31 13F T MOBILE US COM 872590104 4,000,585 -16,285 244,195
2019-04-23 2017-12-31 13F/A-1 T MOBILE US COM 872590104 4,016,870 644 0.02 255,112 3.02 0.0698
2018-02-14 2017-12-31 13F T MOBILE US COM 872590104 4,016,870 644 255,112
2017-11-14 2017-09-30 13F T MOBILE US COM 872590104 4,016,226 -597,795 -12.96 247,639 -11.46 0.0742
2017-08-11 2017-06-30 13F T MOBILE US COM 872590104 4,614,021 704,805 18.03 279,703 10.78 0.0845
2017-05-22 2017-03-31 13F/A-1 T MOBILE US COM 872590104 3,909,216 -373,068 -8.71 252,495 2.53 0.0776
2017-05-12 2017-03-31 13F T MOBILE US COM 872590104 3,909,216 252,495
2017-02-22 2016-12-31 13F/A-1 T MOBILE US COM 872590104 4,282,284 -834,376 -16.31 246,274 3.02 0.0806
2017-02-13 2016-12-31 13F T MOBILE US COM 872590104 4,282,284 246,274
2016-11-10 2016-09-30 13F T MOBILE US COM 872590104 5,116,660 793,406 18.35 239,050 27.79 0.0816
2016-08-12 2016-06-30 13F T MOBILE US COM 872590104 4,323,254 406,378 10.38 187,067 24.70 0.0676
2016-05-12 2016-03-31 13F T MOBILE US COM 872590104 3,916,876 2,984,599 320.14 150,014 311.34 0.0577
2016-02-09 2015-12-31 13F T MOBILE US COM 872590104 932,277 -491,651 -34.53 36,470 -35.66 0.0132
2016-02-08 2015-09-30 13F/A-1 T MOBILE US COM 872590104 1,423,928 -593,358 -29.41 56,687 -27.52 0.0209
2015-11-09 2015-09-30 13F T MOBILE US COM 872590104 1,423,928 56,687
2015-08-12 2015-06-30 13F T MOBILE US COM 872590104 2,017,286 552,785 37.75 78,210 68.52 0.0271
2015-05-14 2015-03-31 13F T MOBILE US COM 872590104 1,464,501 746,203 103.88 46,410 139.83 0.0171
2015-02-13 2014-12-31 13F T MOBILE US COM 872590104 718,298 -144,363 -16.73 19,351 -22.30 0.0071
2014-12-16 2014-09-30 13F/A-1 T-MOBILE US COM 872590104 862,661 -1,161,806 -57.39 24,905 -62.75 0.0096
2014-11-14 2014-09-30 13F T-MOBILE US COM 872590104 862,661 24,905
2014-05-13 2014-03-31 13F T-MOBILE US COM 872590104 2,024,467 1,500,419 286.31 66,867 279.34 0.0280
2014-02-13 2013-12-31 13F T-MOBILE US COM 872590104 524,048 232,552 79.78 17,627 132.91 0.0075
2013-11-13 2013-09-30 13F T-MOBILE US INC COM STK COM 872590104 291,496 -381,846 -56.71 7,568 -54.70 0.0036
2013-08-08 2013-06-30 13F T-MOBILE US INC COM STK COM 872590104 673,342 673,342 16,705 0.0084
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.