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

SecurityTMUS / T-Mobile US, Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership1,144,612 shares
Latest Disclosed Value $ 240,402,858
Qube Research & Technologies Ltd ownership in TMUS / T-Mobile US, Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 1,144,612 shares of T-Mobile US, Inc. (US:TMUS) valued at $240,402,858 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,184,616 shares of T-Mobile US, Inc.. This represents a change in shares of -3.38% during the quarter. The current value of the position is $207,689,847 USD.

Qube Research & Technologies Ltd has a history of taking positions in derivatives of the underlying security (TMUS) in the form of stock options. The firm currently holds call options representing 36,200 of underlying shares valued at $7,603,086 USD and put options representing 45,300 of underlying shares valued at $9,514,359 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

TMUS / T-Mobile US, Inc. Historical Put/Call Ratio
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 1,144,612 -40,004 -3.38 240,403 -0.05 0.2673
2026-02-17 2025-12-31 13F T-MOBILE US COM 872590104 1,184,616 216,926 22.42 240,524 3.83 0.2443
2025-11-14 2025-09-30 13F T-MOBILE US COM 872590104 967,690 1,628 0.17 231,646 0.64 0.2393
2025-08-14 2025-06-30 13F T-MOBILE US COM 872590104 966,062 585,598 153.92 230,174 126.83 0.2339
2025-05-15 2025-03-31 13F T-MOBILE US COM 872590104 380,464 250,981 193.83 101,474 255.05 0.1177
2025-02-14 2024-12-31 13F T-MOBILE US COM 872590104 129,483 124,680 2,595.88 28,581 2,783.96 0.0375
2024-11-14 2024-09-30 13F T-MOBILE US COM 872590104 4,803 -22,523 -82.42 991 -79.41 0.0015
2024-08-14 2024-06-30 13F T-MOBILE US COM 872590104 27,326 -530,318 -95.10 4,814 -94.71 0.0076
2024-05-14 2024-03-31 13F T-MOBILE US COM 872590104 557,644 531,628 2,043.47 91,019 2,082.16 0.1443
2024-02-13 2023-12-31 13F T-MOBILE US COM 872590104 26,016 -75,927 -74.48 4,171 -70.79 0.0081
2023-11-13 2023-09-30 13F T-MOBILE US COM 872590104 101,943 -106,489 -51.09 14,277 -50.69 0.0373
2023-08-14 2023-06-30 13F T-MOBILE US COM 872590104 208,432 -138,692 -39.95 28,951 -42.42 0.1053
2023-05-15 2023-03-31 13F T-MOBILE US COM 872590104 347,124 51,002 17.22 50,277 21.28 0.2163
2023-02-14 2022-12-31 13F T-MOBILE US COM 872590104 296,122 184,690 165.74 41,457 177.29 0.2219
2022-11-14 2022-09-30 13F T-MOBILE US COM 872590104 111,432 111,432 14,951 0.0890
2022-05-09 2022-03-31 13F T-MOBILE US COM 872590104 0 -142,970 -100.00 0 -100.00
2022-02-10 2021-12-31 13F/A-1 T-MOBILE US COM 872590104 142,970 142,970 16,582 0.1280
2022-02-01 2021-12-31 13F T-MOBILE US COM 872590104 142,970 142,970 16,582 0.1281
2021-11-12 2021-09-30 13F T-MOBILE US COM 872590104 0 -103,282 -100.00 0 -100.00
2021-08-13 2021-06-30 13F T-MOBILE US COM 872590104 103,282 78,470 316.26 14,958 381.12 0.1704
2021-05-14 2021-03-31 13F T-MOBILE US COM 872590104 24,812 24,812 3,109 0.0493
2021-02-16 2020-12-31 13F T-MOBILE US COM 872590104 0 -84,254 -100.00 0 -100.00
2020-11-12 2020-09-30 13F T-MOBILE US COM 872590104 84,254 -204,878 -70.86 9,635 -68.00 0.1375
2020-08-14 2020-06-30 13F T-MOBILE US COM 872590104 289,132 289,132 30,113 0.4418
2020-02-13 2019-12-31 13F T MOBILE US COM 872590104 0 -5,629 -100.00 0 -100.00
2019-11-13 2019-09-30 13F T MOBILE US COM 872590104 5,629 -1,850 -24.74 443 -20.04 0.2951
2019-08-02 2019-06-30 13F T MOBILE US COM 872590104 7,479 7,479 554 0.1319
2019-02-14 2018-12-31 13F T MOBILE US COM 872590104 0 -12,314 -100.00 0 -100.00
2018-11-14 2018-09-30 13F T MOBILE US COM 872590104 12,314 6,696 119.19 864 157.14 0.1149
2018-08-15 2018-06-30 13F/A-1 T MOBILE US COM 872590104 5,618 4,433 374.09 336 366.67 0.2120
2018-08-14 2018-06-30 13F T MOBILE US COM 872590104 5,618 4,433 336
2018-05-14 2018-03-31 13F T MOBILE US COM 872590104 1,185 1,185 72 0.0277
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F T-MOBILE US COM Call 36,200 -34.18 7,603 -31.92 n/a n/a n/a
2026-02-17 2025-12-31 13F T-MOBILE US COM Call 55,000 68.20 11,167 42.67 n/a n/a n/a
2025-11-14 2025-09-30 13F T-MOBILE US COM Call 32,700 -22.70 7,828 -22.34 n/a n/a n/a
2025-08-14 2025-06-30 13F T-MOBILE US COM Call 42,300 10,078 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F T-MOBILE US COM Put 45,300 -45.36 9,514 -43.48 n/a n/a n/a
2026-02-17 2025-12-31 13F T-MOBILE US COM Put 82,900 30.55 16,832 10.74 n/a n/a n/a
2025-11-14 2025-09-30 13F T-MOBILE US COM Put 63,500 -43.40 15,201 -43.14 n/a n/a n/a
2025-08-14 2025-06-30 13F T-MOBILE US COM Put 112,200 4,575.00 26,733 4,076.88 n/a n/a n/a
2025-05-15 2025-03-31 13F T-MOBILE US COM Put 2,400 -84.31 640 -81.05 n/a n/a n/a
2025-02-14 2024-12-31 13F T-MOBILE US COM Put 15,300 0.00 3,377 6.97 n/a n/a n/a
2024-11-14 2024-09-30 13F T-MOBILE US COM Put 15,300 0.00 3,157 17.14 n/a n/a n/a
2024-08-14 2024-06-30 13F T-MOBILE US COM Put 15,300 -80.99 2,696 -79.49 n/a n/a n/a
2024-05-14 2024-03-31 13F T-MOBILE US COM Put 80,500 18.38 13,139 20.52 n/a n/a n/a
2024-02-13 2023-12-31 13F T-MOBILE US COM Put 68,000 10,902 n/a n/a n/a
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.