G. Michael Sievert
CIK: 0001182438
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (28 total)
- Jun 1, 2026ALK
ALASKA AIR GROUP, INC.
Award(A)Direct4.3K shares at avg. $44.52$190K - Mar 25, 2026SBUX
STARBUCKS CORP
Award(A)Direct3.7K shares- - Feb 24, 2026TMUS
T-Mobile US, Inc.
Sale(S)Direct1.1K shares at avg. $221.85$242K - Feb 23, 2026TMUS
T-Mobile US, Inc.
Sale(S)Direct13.9K shares at avg. $220.07$3.1M - Feb 19, 2026TMUS
T-Mobile US, Inc.
Sale(S)Direct80K shares at avg. $214.94$17.2M - Dec 3, 2025TMUS
T-Mobile US, Inc.
Gift(G)Direct65.5K shares- - Nov 18, 2025TMUS
T-Mobile US, Inc.
Sale(S)Direct22.5K shares at avg. $214.25$4.8M - Nov 17, 2025TMUS
T-Mobile US, Inc.
Sale(S)Direct22.5K shares at avg. $216.97$4.9M - Nov 10, 2025TMUS
T-Mobile US, Inc.
Gift(G)Direct43.3K shares- - Nov 9, 2025TMUS
T-Mobile US, Inc.
Tax Payment(F)Direct44.1K shares at avg. $207.00$9.1M - Nov 9, 2025TMUS
T-Mobile US, Inc.
Award(A)Direct135.9K shares- - Nov 9, 2025TMUS
T-Mobile US, Inc.
Tax Payment(F)Direct53.5K shares at avg. $207.00$11.1M - Aug 19, 2025TMUS
T-Mobile US, Inc.
Sale(S)Direct22.5K shares at avg. $257.17$5.8M - Aug 18, 2025TMUS
T-Mobile US, Inc.
Sale(S)Direct22.5K shares at avg. $255.58$5.8M - May 20, 2025TMUS
T-Mobile US, Inc.
Sale(S)Direct22.5K shares at avg. $240.99$5.4M - May 19, 2025TMUS
T-Mobile US, Inc.
Sale(S)Direct22.5K shares at avg. $244.40$5.5M - Apr 1, 2025TMUS
T-Mobile US, Inc.
Award(A)Direct127.6K shares- - Apr 1, 2025TMUS
T-Mobile US, Inc.
Tax Payment(F)Direct50.2K shares at avg. $268.54$13.5M - Mar 12, 2025SBUX
STARBUCKS CORP
Award(A)Direct3.1K shares- - Feb 26, 2025TMUS
T-Mobile US, Inc.
Sale(S)Direct22.5K shares at avg. $263.98$5.9M - Feb 25, 2025TMUS
T-Mobile US, Inc.
Sale(S)Direct22.5K shares at avg. $269.67$6.1M - Feb 15, 2025TMUS
T-Mobile US, Inc.
Tax Payment(F)Direct26.3K shares at avg. $270.82$7.1M - Feb 15, 2025TMUS
T-Mobile US, Inc.
Award(A)Direct88.3K shares- - Feb 15, 2025TMUS
T-Mobile US, Inc.
Tax Payment(F)Direct34.7K shares at avg. $270.82$9.4M - Feb 15, 2025TMUS
T-Mobile US, Inc.
Award(A)Direct48.4K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 1, 2026 |  ALK ALASKA AIR GROUP, INC. | Award(A) | 4,258 | $44.52 | $189,566 | Direct |
| Mar 25, 2026 |  SBUX STARBUCKS CORP | Award(A) | 3,667 | - | $0 | Direct |
| Feb 24, 2026 |  TMUS T-Mobile US, Inc. | Sale(S) | 1,089 | $221.85 | $241,595 | Direct |
| Feb 23, 2026 | TMUS T-Mobile US, Inc. | Sale(S) | 13,911 | $220.07 | $3,061,394 | Direct |
| Feb 19, 2026 | TMUS T-Mobile US, Inc. | Sale(S) | 80,000 | $214.94 | $17,195,200 | Direct |
| Dec 3, 2025 | TMUS T-Mobile US, Inc. | Gift(G) | 65,500 | - | - | Direct |
| Nov 18, 2025 | TMUS T-Mobile US, Inc. | Sale(S) | 22,500 | $214.25 | $4,820,625 | Direct |
| Nov 17, 2025 | TMUS T-Mobile US, Inc. | Sale(S) | 22,500 | $216.97 | $4,881,825 | Direct |
| Nov 10, 2025 | TMUS T-Mobile US, Inc. | Gift(G) | 43,318 | - | - | Direct |
| Nov 9, 2025 | TMUS T-Mobile US, Inc. | Tax Payment(F) | 44,140 | $207.00 | $9,136,996 | Direct |
| Nov 9, 2025 | TMUS T-Mobile US, Inc. | Award(A) | 135,915 | - | - | Direct |
| Nov 9, 2025 | TMUS T-Mobile US, Inc. | Tax Payment(F) | 53,483 | $207.00 | $11,070,889 | Direct |
| Aug 19, 2025 | TMUS T-Mobile US, Inc. | Sale(S) | 22,500 | $257.17 | $5,786,325 | Direct |
| Aug 18, 2025 | TMUS T-Mobile US, Inc. | Sale(S) | 22,500 | $255.58 | $5,750,550 | Direct |
| May 20, 2025 | TMUS T-Mobile US, Inc. | Sale(S) | 22,500 | $240.99 | $5,422,275 | Direct |
| May 19, 2025 | TMUS T-Mobile US, Inc. | Sale(S) | 22,500 | $244.40 | $5,499,000 | Direct |
| Apr 1, 2025 | TMUS T-Mobile US, Inc. | Award(A) | 127,631 | - | - | Direct |
| Apr 1, 2025 | TMUS T-Mobile US, Inc. | Tax Payment(F) | 50,223 | $268.54 | $13,486,830 | Direct |
| Mar 12, 2025 | SBUX STARBUCKS CORP | Award(A) | 3,141 | - | - | Direct |
| Feb 26, 2025 | TMUS T-Mobile US, Inc. | Sale(S) | 22,500 | $263.98 | $5,939,550 | Direct |
| Feb 25, 2025 | TMUS T-Mobile US, Inc. | Sale(S) | 22,500 | $269.67 | $6,067,575 | Direct |
| Feb 15, 2025 | TMUS T-Mobile US, Inc. | Tax Payment(F) | 26,302 | $270.82 | $7,123,090 | Direct |
| Feb 15, 2025 | TMUS T-Mobile US, Inc. | Award(A) | 88,294 | - | - | Direct |
| Feb 15, 2025 | TMUS T-Mobile US, Inc. | Tax Payment(F) | 34,744 | $270.82 | $9,409,286 | Direct |
| Feb 15, 2025 | TMUS T-Mobile US, Inc. | Award(A) | 48,441 | - | - | Direct |
1-25 of 28 transactions
About SIEVERT G MICHAEL
SIEVERT G MICHAEL (SEC CIK 0001182438) files insider reports with the SEC as Director of ALASKA AIR GROUP, INC. (ALK), Director of STARBUCKS CORP (SBUX) and Director of T-Mobile US, Inc. (TMUS).
Signal8 holds 16 ownership filings by SIEVERT G MICHAEL (1 Form 3, 15 Form 4), filed between Nov 13, 2024 and Jun 3, 2026. Those filings report 28 transactions, from Nov 11, 2024 to Jun 1, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on SIEVERT G MICHAEL's filings is in SEATTLE, WA.
Recent filings by SIEVERT G MICHAEL
- Jun 1, 2026: Grant or award of ALK shares (Form 4, code A).
- Mar 25, 2026: Grant or award of SBUX shares (Form 4, code A).
- Feb 24, 2026: Open-market sale of TMUS shares (Form 4, code S).
- Feb 23, 2026: Open-market sale of TMUS shares (Form 4, code S).
- Feb 19, 2026: Open-market sale of TMUS shares (Form 4, code S).
Other insiders filing for ALASKA AIR GROUP, INC. (ALK)
- BIRKETT RAKOW DIANA, EVP & CEO of Hawaiian Airlines
- LEVINE KYLE B, EVP Corp Pub Aff & Chf Leg Off
- Berry Jason M, EVP & Chief Operating Officer
- SCHNEIDER ANDREA L, Pres & CEO Horizon Airlines
- HARRISON ANDREW R, EVP AND CCO
- MINICUCCI BENITO, CEO AND PRESIDENT