T-Mobile US, Inc.
TMUSL- Exchange
- Nasdaq
- Industry
- Radiotelephone Communications
- SEC CIK
- 0001283699
In the last 90 days, T-Mobile US, Inc. insiders filed 0 open-market purchases and 2 sales; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Holders of 5% or more of TMUSL
Holders whose latest Schedule 13D or 13G filing reports 5% or more of T-Mobile US, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Picton Mahoney Asset Management | 13G/A | 6.48%1.02M shares | 0.00 ppfrom 6.48% | Oct 15, 20252 filings | Oct 16, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
2 Schedule 13D and 13G filings on T-Mobile US, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Oct 16, 20255:55 PM ET | Picton Mahoney Asset Management | 13G/A | 6.48%1.02M shares | 0.00 ppfrom 6.48% | Oct 16, 2025 | SEC |
| Oct 15, 20259:14 AM ET | Picton Mahoney Asset Management | 13G | 6.48%1.02M shares | New | Aug 29, 2025 | SEC |
Form 144: proposed insider sales
111 notices from officers, directors and other affiliates planning to sell T-Mobile US, Inc. shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Nov 2, 20263:09 PM ET | Drobac Daniel JamesOfficer | 113 | $17.4K | Nov 2, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| Sep 10, 202610:02 AM ET | Drobac Daniel JamesOfficer | 772 | $137.7K | Sep 10, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 21, 20261:13 PM ET | Freier JonOfficer | 4.80K | $911.8K | May 21, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 1, 202612:34 PM ET | Katz Michael J.Officer | 5.00K | $979.0K | May 1, 2026 | Fidelity Brokerage Services LLC | SEC |
| Mar 10, 20264:16 PM ET | Datar Srikant M.Director | 1.00K | $218.3K | Mar 10, 2026 | Fidelity Brokerage Services LLC | SEC |
| Mar 4, 20261:02 PM ET | Datar Srikant M.Director | 3.29K | $727.6K | Mar 4, 2026 | Fidelity Brokerage Services LLC | SEC |
| Feb 24, 20264:37 PM ET | Nelson Mark WolfeOfficer | 2.33K | $518.0K | Feb 24, 2026 | Fidelity Brokerage Services LLC | SEC |
| Feb 24, 20264:19 PM ET | Sievert G MichaelOfficer · Director | 1.09K | $241.6K | Feb 24, 2026 | Fidelity Brokerage Services LLC | SEC |
| Feb 23, 20264:19 PM ET | Sievert G MichaelOfficer · Director | 13.9K | $3.06M | Feb 23, 2026 | Fidelity Brokerage Services LLC | SEC |
| Feb 19, 20264:45 PM ET | Sievert G MichaelDirector | 80.0K | $17.2M | Feb 19, 2026 | Fidelity Brokerage Services LLC | SEC |
| Feb 18, 20261:20 PM ET | Osvaldik PeterOfficer | 27.0K | $5.80M | Feb 18, 2026 | Fidelity Brokerage Services LLC | SEC |
| Feb 18, 202610:01 AM ET | Nelson Mark WolfeOfficer | 6.27K | $1.38M | Feb 18, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 17, 202611:21 AM ET | Nelson Mark WolfeOfficer | 10.2K | $2.26M | Feb 17, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 12, 20264:29 PM ET | Claure Mobile LLCDirector | 1.00M | $219.0M | Feb 12, 2026 | UBS Financial Services Inc | SEC |
| Dec 22, 202512:25 PM ET | Deutsche Telekom AG10% stockholder | 400.0K | $78.7M | Dec 22, 202510b5-1 | Santander US Capital Markets LLC | SEC |
| Dec 5, 20254:02 PM ET | Long Letitia ADirector | 1.46K | $306.4K | Dec 5, 2025 | Fidelity Brokerage Services LLC | SEC |
| Nov 18, 202511:07 AM ET | Sievert G MichaelOfficer · Director | 22.5K | $4.88M | Nov 18, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Nov 17, 202510:54 AM ET | Katz Michael J.Officer | 2.50K | $539.8K | Nov 17, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Nov 17, 20259:47 AM ET | Sievert G MichaelOfficer · Director | 22.5K | $4.86M | Nov 17, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Nov 12, 20258:07 AM ET | Field Callie ROfficer | 23.6K | $5.00M | Nov 11, 2025 | Fidelity Brokerage Services LLC | SEC |
| Sep 10, 20257:09 PM ET | Deutsche Telekom AG10% stockholder | 5.00M | $1.20B | Sep 11, 202510b5-1 | Santander US Capital Markets LLC | SEC |
| Aug 19, 20254:49 PM ET | Sievert G MichaelOfficer · Director | 22.5K | $5.79M | Aug 19, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Aug 18, 202510:37 AM ET | Sievert G MichaelOfficer · Director | 22.5K | $5.75M | Aug 18, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Aug 15, 202510:10 AM ET | Katz Michael J.Officer | 2.50K | $627.8K | Aug 15, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Jul 29, 20252:30 PM ET | Field Callie ROfficer | 12.3K | $2.96M | Jul 29, 2025 | Fidelity Brokerage Services LLC | SEC |
Showing the latest 25. See the TMUSL notices from the last 12 months