T-Mobile US, Inc. (TMUS) Insider Trading
Over the last 3 months, TMUS insiders made 1 open-market buy and 2 sales, a net sale of -$891K (SEC Form 4). Over the last 6 months, 1387 institutions increased and 1358 reduced their position (13F).
Insider Activity
Sentiment
35/100
Buys (3m)
1
Sells (3m)
2
Net (3m)
-$890.9K
Insiders buyingFirst buy in 2 quarters
Insider trades by month Buys Sells
Oct
Nov
Dec
Feb
Mar
May
Context3-month price -20.2%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 18, 2026 | Datar Srikant M.director | Grant | 1,384 | — |
| Jun 18, 2026 | KAVANAUGH JAMES Jdirector | Grant | 1,384 | — |
| Jun 18, 2026 | CLAURE RAUL MARCELOdirector | Grant | 1,384 | — |
| Jun 18, 2026 | Long Letitia Adirector | Grant | 1,384 | — |
| Jun 18, 2026 | Dannenfeldt Thomasdirector | Grant | 1,384 | — |
| Jun 18, 2026 | Long Letitia Adirector | Grant | 272 | — |
| Jun 18, 2026 | Taylor Teresadirector | Grant | 1,384 | — |
| Jun 12, 2026 | Nelson Mark Wolfeofficer: Chief Legal Officer & GC | Grant | 98 | $187.02 |
| Jun 9, 2026 | Dannenfeldt Thomasdirector | Tax | 311 | $178.10 |
| May 26, 2026 | Freier Jonofficer: Chief Operating Officer | Sell | 4,799 | $190.00 |
| May 4, 2026 | Katz Michael J.officer: Chief Bus. and Prod. Officer | Sell | 5,000 | $195.81 |
| May 4, 2026 | Almeida Andreofficer: Chief Broadband, Ent. & Emerg | Buy | 5,097 | $196.18 |
| May 4, 2026 | Drobac Daniel Jamesofficer: VP & Chief Accounting Officer | Tax | 37 | $196.06 |
| Mar 13, 2026 | Nelson Mark Wolfeofficer: Chief Legal Officer & GC | Grant | 86 | $211.58 |
| Mar 12, 2026 | Datar Srikant M.director | Sell | 1,000 | $218.25 |
| Mar 6, 2026 | Datar Srikant M.director | Sell | 3,291 | $221.10 |
| Feb 26, 2026 | Drobac Daniel Jamesofficer: VP & Chief Accounting Officer | Tax | 389 | $218.66 |
| Feb 25, 2026 | SIEVERT G MICHAELdirector | Sell | 13,911 | $220.07 |
| Feb 25, 2026 | Nelson Mark Wolfeofficer: Chief Legal Officer & GC | Sell | 2,329 | $222.38 |
| Feb 25, 2026 | SIEVERT G MICHAELdirector | Sell | 1,089 | $221.85 |
| Feb 23, 2026 | SIEVERT G MICHAELdirector | Sell | 80,000 | $214.94 |
| Feb 19, 2026 | Osvaldik Peterofficer: Chief Financial Officer | Sell | 27,000 | $214.86 |
| Feb 18, 2026 | Gopalan Srinidirector, officer: President and CEO | Grant | 60,031 | — |
| Feb 18, 2026 | Osvaldik Peterofficer: Chief Financial Officer | Grant | 12,287 | — |
| Feb 18, 2026 | Nelson Mark Wolfeofficer: Chief Legal Officer & GC | Sell | 6,274 | $219.69 |
| Feb 18, 2026 | SAW JOHNofficer: Chief Technology Officer | Tax | 2,840 | $219.50 |
| Feb 18, 2026 | King Deeanneofficer: Chief People Officer | Grant | 9,421 | — |
| Feb 18, 2026 | Almeida Andreofficer: Chief Broadband, Ent. & Emerg | Grant | 13,654 | — |
| Feb 18, 2026 | King Deeanneofficer: Chief People Officer | Tax | 3,108 | $219.50 |
| Feb 18, 2026 | Gopalan Srinidirector, officer: President and CEO | Tax | 2,705 | $219.50 |
Source: TMUS SEC Form 4 filings, latest Jun 18, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their TMUS positions over the last 6 months (SEC Form 13F).
Increased
1387
New positions
382
Reduced
1358
Sold out
333
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 59.5M | May 15, 2026 |
| VANGUARD GROUP INC | Increased | 42.8M | Jan 29, 2026 |
| BLACKROCK, INC. | Increased | 39.1M | May 13, 2026 |
| BLACKROCK, INC. | Reduced | 39.1M | Feb 12, 2026 |
| SOFTBANK GROUP CORP. | Reduced | 28.5M | Feb 17, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 28.5M | May 15, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 27.8M | Feb 17, 2026 |
| STATE STREET CORP | Increased | 25.3M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 23.7M | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 17.2M | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 16.6M | Feb 17, 2026 |
| FMR LLC | Increased | 15.7M | Feb 17, 2026 |
| CAPITAL INTERNATIONAL INVESTORS | Increased | 14.8M | Feb 11, 2026 |
| MORGAN STANLEY | Reduced | 14.4M | May 15, 2026 |
| MORGAN STANLEY | Reduced | 12.6M | Feb 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.