T-Mobile US, Inc.
US ˙ NasdaqGS ˙ US8725901040

SecurityTMUS / T-Mobile US, Inc.
InstitutionAIA Group Ltd
Latest Disclosed Ownership53,556 shares
Latest Disclosed Value $ 11,248,367
AIA Group Ltd reports 24.32% decrease in ownership of TMUS / T-Mobile US, Inc.

On May 6, 2026 - AIA Group Ltd filed a 13F-HR form disclosing ownership of 53,556 shares of T-Mobile US, Inc. (US:TMUS) valued at $11,248,367 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 70,763 shares of T-Mobile US, Inc.. This represents a change in shares of -24.32% during the quarter. The current value of the position is $9,717,736 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-06 2026-03-31 13F T-MOBILE US COM 872590104 53,556 -17,207 -24.32 11,248 -21.71 0.1635
2026-02-09 2025-12-31 13F T-MOBILE US COM 872590104 70,763 48,632 219.75 14,368 171.23 0.2150
2025-12-18 2025-09-30 13F T-MOBILE US COM 872590104 22,131 12,392 127.24 5,298 128.32 0.0937
2025-08-06 2025-06-30 13F T-MOBILE US COM 872590104 9,739 -1,398 -12.55 2,320 -21.89 0.0505
2025-05-12 2025-03-31 13F T-MOBILE US COM 872590104 11,137 9,583 616.67 2,970 765.89 0.0730
2025-02-12 2024-12-31 13F T-MOBILE US COM 872590104 1,554 1,554 343 0.0083
2024-01-31 2023-12-31 13F T-MOBILE US COM 872590104 0 -7,825 -100.00 0 -100.00
2023-11-01 2023-09-30 13F T-MOBILE US COM 872590104 7,825 7,825 1,096 0.0535
2023-07-28 2023-06-30 13F T-MOBILE US COM 872590104 0 -4,999 -100.00 0 -100.00
2023-04-28 2023-03-31 13F T-MOBILE US COM 872590104 4,999 -820 -14.09 724 -11.06 0.0393
2023-01-31 2022-12-31 13F T-MOBILE US COM 872590104 5,819 3,179 120.42 815 129.94 0.0496
2022-11-04 2022-09-30 13F T-MOBILE US COM 872590104 2,640 -1,627 -38.13 354 -38.33 0.0232
2022-08-11 2022-06-30 13F T-MOBILE US COM 872590104 4,267 2,198 106.23 574 115.79 0.0308
2022-05-06 2022-03-31 13F T-MOBILE US COM 872590104 2,069 680 48.96 266 65.22 0.0093
2022-02-11 2021-12-31 13F T-MOBILE US COM 872590104 1,389 -1,089 -43.95 161 -49.21 0.0076
2021-11-05 2021-09-30 13F T-MOBILE US COM 872590104 2,478 509 25.85 317 11.23 0.0179
2021-08-03 2021-06-30 13F T-MOBILE US COM 872590104 1,969 1,969 285 0.0196
2021-05-14 2021-03-31 13F T-MOBILE US COM 872590104 0 -3,621 -100.00 0 -100.00
2021-02-12 2020-12-31 13F T-MOBILE US COM 872590104 3,621 3,621 468 0.0539
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.