T-Mobile US, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for T-Mobile US, Inc. (TMUS), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are TMUS insiders buying or selling?
In the last 12 months, T-Mobile US, Inc. insiders reported 2 open-market purchases ($3.0M) and 19 sales ($256.7M) — net selling of $253.7M. Since January 2018, Trabud has recorded 286 Form 4 filings for TMUS: 32 buys ($429.0M) and 254 sells ($6.8B).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $2.0M by Srini Gopalan (President and CEO) on Nov 10, 2025. SEC ↗
- The most recent open-market purchase was reported on May 4, 2026 (5 months ago).
Key Statistics (January 2018 – Sep 14, 2026)
Total Form 4 filings
286
SEC EDGAR
Insider filers
29
Insider buys (32)
$429.0M
Insider sells (254)
$6.8B
Insider sentiment
Net sellingNet insider flow of $6.3B in net selling since January 2018, and $253.7M in net selling over the last 12 months.
Recent TMUS insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 14, 2026 | Daniel James Drobac | VP & Chief Accounting Officer | Sale | 772 | $178.33 | $137.7K | SEC ↗ |
| May 26, 2026 | Jon Freier | Chief Operating Officer | Sale | 4.8K | $190.00 | $911.8K | SEC ↗ |
| May 4, 2026 | Andre Almeida | Chief Broadband, Ent. & Emerg | Purchase | 5.1K | $196.18 | $1.0M | SEC ↗ |
| May 4, 2026 | Michael J. Katz | Chief Bus. and Prod. Officer | Sale | 5.0K | $195.81 | $979.0K | SEC ↗ |
| Mar 12, 2026 | Srikant M. Datar | Director | Sale | 1.0K | $218.25 | $218.3K | SEC ↗ |
| Mar 6, 2026 | Srikant M. Datar | Director | Sale | 3.3K | $221.10 | $727.6K | SEC ↗ |
| Feb 25, 2026 | Michael G Sievert | Director | Sale | 15.0K | $220.20 | $3.3M | SEC ↗ |
| Feb 25, 2026 | Mark Wolfe Nelson | Chief Legal Officer & GC | Sale | 2.3K | $222.38 | $518.0K | SEC ↗ |
| Feb 23, 2026 | Michael G Sievert | Director | Sale | 80.0K | $214.94 | $17.2M | SEC ↗ |
| Feb 19, 2026 | Peter Osvaldik | Chief Financial Officer | Sale | 27.0K | $214.86 | $5.8M | SEC ↗ |
| Feb 18, 2026 | Mark Wolfe Nelson | Chief Legal Officer & GC | Sale | 16.5K | $220.38 | $3.6M | SEC ↗ |
| Feb 17, 2026 | CLAURE RAUL MARCELO | Director | Sale | 550.0K | $217.57 | $119.7M | SEC ↗ |
| Dec 9, 2025 | Letitia A Long | Director | Sale | 1.5K | $210.32 | $306.4K | SEC ↗ |
| Nov 19, 2025 | Michael G Sievert | Director | Sale | 45.0K | $215.61 | $9.7M | SEC ↗ |
| Nov 19, 2025 | Michael J. Katz | Pres, Mkting Stgy & Prods | Sale | 2.5K | $215.91 | $539.8K | SEC ↗ |
| Nov 10, 2025 | Srini Gopalan | President and CEO | Purchase | 9.8K | $201.82 | $2.0M | SEC ↗ |
| Oct 31, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 1.4K | $220.46 | $302.9K | SEC ↗ |
| Oct 29, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 117.9K | $220.72 | $26.0M | SEC ↗ |
| Oct 27, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 35.6K | $221.12 | $7.9M | SEC ↗ |
| Oct 23, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 128.9K | $227.72 | $29.3M | SEC ↗ |
| Oct 21, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 128.9K | $228.71 | $29.5M | SEC ↗ |
| Oct 17, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 128.9K | $227.38 | $29.3M | SEC ↗ |
| Oct 14, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 193.3K | $227.87 | $44.0M | SEC ↗ |
| Oct 10, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 128.9K | $226.60 | $29.2M | SEC ↗ |
| Oct 8, 2025 | DEUTSCHE TELEKOM AG | Director, 10% Owner | Sale | 128.9K | $225.95 | $29.1M | SEC ↗ |
Showing the 25 most recent of 286 Form 4 filings for T-Mobile US, Inc..
Most active TMUS insiders
- Telekom AG Deutsche91 filings
- Michael G Sievert33 filings
- Deutsche Telekom Holding B.V.28 filings
- Michael J. Katz14 filings
- David A Miller13 filings
Ask anything about TMUS insider activity
Use Trabud's AI agent to query T-Mobile US, Inc.'s Form 4 history in plain English — "Show me TMUS CEO purchases this year" or compare it against any other ticker.
Open the AI agentTMUS insider trading FAQ
Are T-Mobile US, Inc. insiders buying or selling?
In the last 12 months, T-Mobile US, Inc. insiders reported 2 open-market purchases ($3.0M) and 19 sales ($256.7M) — net selling of $253.7M. Since January 2018, Trabud has recorded 286 Form 4 filings for TMUS: 32 buys ($429.0M) and 254 sells ($6.8B). Over the full record that is net selling of $6.3B.
How many insiders trade TMUS stock?
29 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for T-Mobile US, Inc.. The most recent filing was accepted on Sep 14, 2026.
Where does Trabud get TMUS insider trading data?
All TMUS insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.