G. Michael Sievert
President and CEO at T-Mobile US Inc.
Sits on 2 boards. Last updated September 28, 2026
Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 6 years
- Director since
- 2023
6 years of board service in total across 2 boards, counting each seat separately. Longest: T-Mobile US Inc., 3 years.
T-Mobile US Inc.
Director · President and CEO
Starbucks Corporation
Director
Chief executive roles
T-Mobile US Inc.
· President and CEO
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| May 14, 2024 | T-Mobile US Inc. | Open-market sale | −20,000 | $162.84 | $3,256,800 |
| May 13, 2024 | T-Mobile US Inc. | Open-market sale | −20,000 | $163.20 | $3,264,000 |
| Mar 13, 2024 | Starbucks Corporation | Grant or award | +3,383 | — | — |
| Mar 4, 2024 | T-Mobile US Inc. | Shares withheld for tax | −7,521 | $163.34 | $1,228,480 |
| Mar 4, 2024 | T-Mobile US Inc. | Grant or award | +48,821 | — | — |
| Mar 4, 2024 | T-Mobile US Inc. | Shares withheld for tax | −19,212 | $163.34 | $3,138,088 |
| Feb 28, 2024 | T-Mobile US Inc. | Open-market sale | −20,000 | $163.78 | $3,275,600 |
| Feb 27, 2024 | T-Mobile US Inc. | Open-market sale | −20,000 | $163.71 | $3,274,200 |
| Feb 15, 2024 | T-Mobile US Inc. | Grant or award | +64,093 | — | — |
| Feb 15, 2024 | T-Mobile US Inc. | Shares withheld for tax | −17,896 | $161.57 | $2,891,457 |
| Feb 15, 2024 | T-Mobile US Inc. | Open-market sale | −40,000 | $161.05 | $6,442,000 |
| Feb 15, 2024 | T-Mobile US Inc. | Gift | −95,000 | — | — |
| Jan 16, 2024 | Starbucks Corporation | Grant or award | +687 | — | — |
| Nov 17, 2023 | T-Mobile US Inc. | Open-market sale | −96,500 | $147.55 | $14,238,575 |
| Nov 13, 2023 | T-Mobile US Inc. | Open-market sale | −20,000 | $147.29 | $2,945,800 |
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