T-Mobile US TMUS
Ownership & positioning
Who holds it, who is betting against it, and where the big money is moving
Short-sale volume as % of daily volume
Large-order net flow, last 20 sessions
Net of large-order buying minus selling, in USD. Over this window: −$162.80M (5 inflow days, 15 outflow days).
Net flow by order size, last 20 sessions
Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.
The five largest holders on file together own 68.8% of shares outstanding.
Largest holders
By investor type
Reported short interest has fallen from 1.69% to 1.40% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).
Recent institutional activity
| Holder | Type | Period | Share change | New stake |
|---|---|---|---|---|
| Deka Investment GmbH | Mutual Fund | 2026/Q3 | +886,691 | 0.1% |
| The Goldman Sachs Group, Inc. | Public Company | 2026/Q3 | +5,310,395 | 0.7% |
| Arrowstreet Capital, Limited Partnership | Mutual Fund | 2026/Q3 | +4,582,576 | 0.5% |
| SG Americas Securities, LLC | Private Company | 2026/Q3 | +2,026,398 | 0.2% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +1,748,498 | 0.4% |
| Victory Capital Management Inc. | Mutual Fund | 2026/Q3 | +1,584,650 | 0.3% |
| Norges Bank Investment Management | Sovereign Wealth Fund | 2026/Q3 | +1,329,715 | 0.7% |
| State Street Global Advisors | Mutual Fund | 2026/Q3 | +1,302,180 | 2.3% |
| Assenagon Asset Management S.A. | Mutual Fund | 2026/Q3 | +1,259,202 | 0.2% |
| DNB Asset Management AS | Mutual Fund | 2026/Q3 | +1,176,963 | 0.2% |
| Managed Account Advisors LLC | Mutual Fund | 2026/Q3 | +1,004,047 | 0.2% |
| High Ground Investment Management LLP | Hedge Fund | 2026/Q3 | +890,172 | 0.1% |
| Eurizon Capital SGR SpA | Mutual Fund | 2026/Q3 | +802,087 | 0.1% |
| Qube Research & Technologies Ltd | Mutual Fund | 2026/Q3 | +801,579 | 0.2% |
| Ilex Capital Partners (Uk) LLP | Hedge Fund | 2026/Q3 | +765,531 | 0.1% |
Institutional buy/sell activity by reporting period, largest moves first.
Insider transactions
| Date | Insider | Title | Transaction | Shares | Price | Held after |
|---|---|---|---|---|---|---|
| 23 Sep 2026 | Daniel Drobac | Vice President | Other Acquisition | +2,768 | – | 37,887 |
| 9 Sep 2026 | Mark Nelson | Chief Legal Officer & General Counsel | Other Acquisition | +102 | $178.14 | 7,470 |
| 9 Sep 2026 | Daniel Drobac | Vice President | Other Acquisition | +1 | $178.14 | 35,119 |
| 9 Sep 2026 | Daniel Drobac | Vice President | Automatic Disposition | -772 | $178.33 | 35,119 |
| 31 Aug 2026 | André Almeida | Chief Marketing, Brand & Broadband Officer | Sale to Issuer | -530 | $182.16 | 11,065 |
| 24 Aug 2026 | Daniel Drobac | Vice President | Sale to Issuer | -171 | $181.61 | 35,890 |
| 14 Aug 2026 | Daniel Drobac | Vice President | Sale to Issuer | -87 | $182.61 | 36,061 |
| 31 Jul 2026 | Christopher Sambar | Chief Enterprise Officer | Other Acquisition | +40,966 | – | 40,966 |
| 31 Jul 2026 | Christopher Sambar | Chief Enterprise Officer | Initial Statement of Beneficial | +0 | – | – |
| 15 Jun 2026 | Srikant T. Datar | Independent Director | Other Acquisition | +1,384 | – | 1,384 |
| 15 Jun 2026 | Teresa Taylor | Lead Independent Director | Other Acquisition | +1,384 | – | 1,384 |
| 15 Jun 2026 | James Kavanaugh | Independent Director | Other Acquisition | +1,384 | – | 1,384 |
| 15 Jun 2026 | Letitia Long | Independent Director | Other Acquisition | +1,656 | – | 1,656 |
| 15 Jun 2026 | Raul Claure | Independent Director | Other Acquisition | +1,384 | – | 1,384 |
| 15 Jun 2026 | Thomas Dannenfeldt | Independent Director | Other Acquisition | +1,384 | – | 1,384 |
| 10 Jun 2026 | Mark Nelson | Chief Legal Officer & General Counsel | Other Acquisition | +97 | $187.02 | 7,367 |
| 5 Jun 2026 | Thomas Dannenfeldt | Independent Director | Sale to Issuer | -311 | $178.10 | 727 |
| 20 May 2026 | Jonathan Freier | Chief Operating Officer | Automatic Disposition | -4,799 | $190.00 | 217,168 |
| 30 Apr 2026 | Michael Katz | Strategic Advisor | Open Market Disposition | -5,000 | $195.81 | 181,930 |
| 30 Apr 2026 | André Almeida | Chief Marketing, Brand & Broadband Officer | Open Market Acquisition | +5,097 | $196.18 | 10,248 |
From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.
Short interest, by report
| Report date | Shares short | % of float | Days to cover |
|---|---|---|---|
| 15 Oct 2026 | 14,988,304 | 1.4% | 2.4 |
| 30 Sep 2026 | 14,320,900 | 1.3% | 2.3 |
| 15 Sep 2026 | 18,071,400 | 1.7% | 4.6 |
| 31 Aug 2026 | 17,093,779 | 1.6% | 4.4 |
| 14 Aug 2026 | 16,943,967 | 1.6% | 4.2 |
| 31 Jul 2026 | 18,076,785 | 1.7% | 3.3 |
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