T-Mobile US, Inc.
MX ˙ BMV ˙ US8725901040
SecurityMX:TMUS / T-Mobile US, Inc.
InstitutionLegacy Advisors, LLC
Latest Disclosed Ownership1,570 shares
Latest Disclosed Value $ 329,747
Legacy Advisors, LLC reports 33.28% increase in ownership of TMUS / T-Mobile US, Inc.

On May 5, 2026 - Legacy Advisors, LLC filed a 13F-HR form disclosing ownership of 1,570 shares of T-Mobile US, Inc. (MX:TMUS) valued at $329,747 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 1,178 shares of T-Mobile US, Inc.. This represents a change in shares of 33.28% 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)
2026-05-05 2026-03-31 13F T-MOBILE US COM 872590104 1,570 392 33.28 330 37.66 0.0389
2026-01-27 2025-12-31 13F T-MOBILE US COM 872590104 1,178 335 39.74 239 18.91 0.0257
2025-11-13 2025-09-30 13F T-MOBILE US COM 872590104 843 843 202 0.0249
2025-08-07 2025-06-30 13F T-MOBILE US COM 872590104 0 -2,503 -100.00 0 -100.00
2025-04-23 2025-03-31 13F T-MOBILE US COM 872590104 2,503 221 9.68 668 32.60 0.0687
2025-02-14 2024-12-31 13F T-MOBILE US COM 872590104 2,282 -54 -2.31 504 4.36 0.0489
2024-11-13 2024-09-30 13F T-MOBILE US COM 872590104 2,336 563 31.75 482 54.49 0.0522
2024-07-30 2024-06-30 13F T-MOBILE US COM 872590104 1,773 158 9.78 312 18.63 0.0380
2024-04-30 2024-03-31 13F T-MOBILE US COM 872590104 1,615 305 23.28 264 25.24 0.0333
2024-02-12 2023-12-31 13F T-MOBILE US COM 872590104 1,310 1,199 1,080.18 210 3,400.00 0.0271
2017-11-03 2017-09-30 13F/A-1 T-Mobile US COM 872590104 111 111 6 0.0067
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.