Who owns T-Mobile US (TMUS)
Which tracked institutional funds hold TMUS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TMUS company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on TMUS is one-sided between 2026-Q1 and 2026-Q2: 10 added or opened and 1072 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
TMUS’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.2% of theirs — a 0.1pp gap the other way — the median holder sizes TMUS more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in TMUS divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 1712 tracked filers holding TMUS, 908 increased or opened the position and 812 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in TMUS between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
Full exits 1054
- VANGUARD CAPITAL MANAGEMENT LLC$6.2B
- MORGAN STANLEY$3.0B
- GEODE CAPITAL MANAGEMENT, LLC$2.6B
- SOFTBANK GROUP CORP.$2.1B
- VANGUARD PORTFOLIO MANAGEMENT LLC$2.1B
- FRANKLIN RESOURCES INC$1.5B
Largest adds
- Invesco Ltd.$491M
- AQR CAPITAL MANAGEMENT LLC$179M
- RENAISSANCE TECHNOLOGIES LLC$42M
- BALYASNY ASSET MANAGEMENT L.P.$26M
- Brevan Howard Capital Management LP$14M
- Bridgewater Associates, LP$8M
Largest trims
- WELLINGTON MANAGEMENT GROUP LLP$2.2B
- PRICE T ROWE ASSOCIATES INC /MD/$1.7B
- FMR LLC$1.3B
- BlackRock, Inc.$869M
- Capital International Investors$788M
- STATE STREET CORP$785M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 39,499,642 | $6.6B | 7.5% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 29,726,319 | $6.2B | 7.1% | 2026-Q1 |
| Invesco Ltd. added | 31,883,463 | $5.3B | 6.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 25,481,834 | $4.3B | 4.9% | 2026-Q2 |
| STATE STREET CORP added | 25,021,478 | $4.2B | 4.8% | 2026-Q2 |
| MORGAN STANLEY added | 14,387,032 | $3.0B | 3.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 12,431,706 | $2.6B | 3.0% | 2026-Q1 |
| SOFTBANK GROUP CORP. trimmed | 10,000,000 | $2.1B | 2.4% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 9,935,386 | $2.1B | 2.4% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 7,048,146 | $1.5B | 1.7% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 8,621,588 | $1.4B | 1.6% | 2026-Q2 |
| BARCLAYS PLC added | 6,610,449 | $1.4B | 1.6% | 2026-Q1 |
| FMR LLC trimmed | 8,153,559 | $1.4B | 1.6% | 2026-Q2 |
| NORGES BANK added | 7,909,295 | $1.3B | 1.5% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 6,279,935 | $1.3B | 1.5% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 6,062,911 | $1.3B | 1.5% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 5,113,509 | $1.1B | 1.2% | 2026-Q1 |
| DODGE & COX added | 6,335,783 | $1.1B | 1.2% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 4,634,889 | $992M | 1.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 4,594,338 | $965M | 1.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 4,468,259 | $938M | 1.1% | 2026-Q1 |
| Nuveen, LLC added | 4,371,891 | $918M | 1.0% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 4,032,597 | $847M | 1.0% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 3,936,458 | $827M | 0.9% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 3,813,709 | $801M | 0.9% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 3,725,281 | $782M | 0.9% | 2026-Q1 |
| Amundi added | 3,679,795 | $773M | 0.9% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 3,678,860 | $773M | 0.9% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 4,443,802 | $745M | 0.8% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 4,473,373 | $744M | 0.8% | 2026-Q2 |
| Legal & General Group Plc added | 3,502,746 | $736M | 0.8% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 3,338,296 | $701M | 0.8% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 3,417,824 | $694M | 0.8% | 2026-Q1 |
| UBS Group AG added | 3,299,280 | $693M | 0.8% | 2026-Q1 |
| Clearbridge Investments, LLC added | 3,171,930 | $666M | 0.8% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 3,153,473 | $662M | 0.8% | 2026-Q1 |
| VIKING GLOBAL INVESTORS LP trimmed | 2,967,374 | $623M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 2,641,971 | $555M | 0.6% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 2,503,456 | $526M | 0.6% | 2026-Q1 |
| Boston Partners added | 2,402,550 | $504M | 0.6% | 2026-Q1 |
| Capital International Investors trimmed | 2,858,077 | $480M | 0.5% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 1,971,069 | $414M | 0.5% | 2026-Q1 |
| Pacer Advisors, Inc. added | 1,755,286 | $369M | 0.4% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 1,728,290 | $365M | 0.4% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 1,732,888 | $364M | 0.4% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 2,120,218 | $356M | 0.4% | 2026-Q2 |
| CITIGROUP INC added | 1,490,552 | $313M | 0.4% | 2026-Q1 |
| Swiss National Bank added | 1,477,202 | $310M | 0.4% | 2026-Q1 |
| ProShare Advisors LLC trimmed | 1,474,887 | $310M | 0.4% | 2026-Q1 |
| California Public Employees Retirement System added | 1,449,168 | $304M | 0.3% | 2026-Q1 |
| DNB Asset Management AS added | 1,396,143 | $293M | 0.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 1,354,717 | $285M | 0.3% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 1,323,170 | $278M | 0.3% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 1,274,245 | $268M | 0.3% | 2026-Q1 |
| National Pension Service trimmed | 1,244,289 | $261M | 0.3% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 1,541,556 | $259M | 0.3% | 2026-Q2 |
| Qube Research & Technologies Ltd trimmed | 1,144,612 | $240M | 0.3% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 1,131,123 | $238M | 0.3% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 1,100,701 | $231M | 0.3% | 2026-Q1 |
| Capital Research Global Investors trimmed | 1,356,674 | $228M | 0.3% | 2026-Q2 |
| Caisse de depot et placement du Quebec added | 1,067,946 | $224M | 0.3% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 1,064,489 | $224M | 0.3% | 2026-Q1 |
| TD Asset Management Inc trimmed | 1,058,179 | $222M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 1,052,716 | $221M | 0.3% | 2026-Q1 |
| CIBC Bancorp USA Inc. added | 1,042,873 | $219M | 0.2% | 2026-Q1 |
| Man Group plc added | 1,027,775 | $216M | 0.2% | 2026-Q1 |
| Daiwa Securities Group Inc. added | 1,019,493 | $214M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 993,469 | $209M | 0.2% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 1,114,744 | $187M | 0.2% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 872,596 | $183M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 855,865 | $180M | 0.2% | 2026-Q1 |
| Public Sector Pension Investment Board added | 852,658 | $179M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 843,369 | $177M | 0.2% | 2026-Q1 |
| NATIONAL BANK OF CANADA /FI/ trimmed | 841,338 | $177M | 0.2% | 2026-Q1 |
| OMERS ADMINISTRATION Corp added | 839,791 | $176M | 0.2% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 808,528 | $173M | 0.2% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 793,426 | $167M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 785,248 | $165M | 0.2% | 2026-Q1 |
| HighTower Advisors, LLC added | 774,484 | $163M | 0.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 919,523 | $154M | 0.2% | 2026-Q2 |
| WORLDQUANT MILLENNIUM ADVISORS LLC trimmed | 727,895 | $153M | 0.2% | 2026-Q1 |
| AVIVA PLC added | 724,936 | $152M | 0.2% | 2026-Q1 |
| FIL Ltd added | 718,433 | $151M | 0.2% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 693,469 | $146M | 0.2% | 2026-Q1 |
| NEOS Investment Management LLC added | 676,409 | $142M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 667,954 | $140M | 0.2% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 662,905 | $139M | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 799,105 | $134M | 0.2% | 2026-Q2 |
| JANUS HENDERSON GROUP PLC trimmed | 622,311 | $131M | 0.1% | 2026-Q1 |
| Assenagon Asset Management S.A. trimmed | 614,419 | $129M | 0.1% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 617,232 | $128M | 0.1% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ trimmed | 603,190 | $127M | 0.1% | 2026-Q1 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added | 676,657 | $125M | 0.1% | 2026-Q1 |
| CapitalatWork S.A. new | 576,010 | $121M | 0.1% | 2026-Q1 |
| BRISTOL JOHN W & CO INC /NY/ trimmed | 547,863 | $115M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 42,816,368 | $8.7B | 9.9% | 2025-Q4 stale |
| BERKSHIRE HATHAWAY INC trimmed | 3,883,145 | $1.0B | 1.2% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP added | 2,827,787 | $574M | 0.7% | 2025-Q4 stale |
| Ghisallo Capital Management LLC new | 2,250,000 | $536M | 0.6% | 2025-Q2 stale |
| CIBC Private Wealth Group LLC added | 953,411 | $194M | 0.2% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.