SIEVERT G MICHAEL
SEC insider (Form 3/4/5 filer). CIK 0001182438. Director at ALASKA AIR GROUP, INC. (ALK) and 2 other issuers. 28 reported Form 4/5 transactions since Sep 2024; latest on Jun 1, 2026. Located in SEATTLE, WA.
Companies SIEVERT G MICHAEL has filed insider reports for
- ALASKA AIR GROUP, INC. (ALK): Director
- STARBUCKS CORP (SBUX): Director
- T-Mobile US, Inc. (TMUS): Director
SIEVERT G MICHAEL
CIK: 0001182438
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)14 (50.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)7 (25.0%)
Compensation grants
Other (G, F, J, C, D, …)7 (25.0%)
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.
AwardDirect4.3K shares at avg. $44.52$190K - Mar 25, 2026SBUX
STARBUCKS CORP
AwardDirect3.7K shares- - Feb 24, 2026TMUS
T-Mobile US, Inc.
SaleDirect1.1K shares at avg. $221.85$242K - Feb 23, 2026TMUS
T-Mobile US, Inc.
SaleDirect13.9K shares at avg. $220.07$3.1M - Feb 19, 2026TMUS
T-Mobile US, Inc.
SaleDirect80K shares at avg. $214.94$17.2M - Dec 3, 2025TMUS
T-Mobile US, Inc.
GiftDirect65.5K shares- - Nov 18, 2025TMUS
T-Mobile US, Inc.
SaleDirect22.5K shares at avg. $214.25$4.8M - Nov 17, 2025TMUS
T-Mobile US, Inc.
SaleDirect22.5K shares at avg. $216.97$4.9M - Nov 10, 2025TMUS
T-Mobile US, Inc.
GiftDirect43.3K shares- - Nov 9, 2025TMUS
T-Mobile US, Inc.
Tax PaymentDirect44.1K shares at avg. $207.00$9.1M
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 1, 2026 |  ALK ALASKA AIR GROUP, INC. | Award | 4,258 | $44.52 | $189,566 | Direct |
| Mar 25, 2026 |  SBUX STARBUCKS CORP | Award | 3,667 | - | $0 | Direct |
| Feb 24, 2026 |  TMUS T-Mobile US, Inc. | Sale | 1,089 | $221.85 | $241,595 | Direct |
| Feb 23, 2026 | TMUS T-Mobile US, Inc. | Sale | 13,911 | $220.07 | $3,061,394 | Direct |
| Feb 19, 2026 | TMUS T-Mobile US, Inc. | Sale | 80,000 | $214.94 | $17,195,200 | Direct |
| Dec 3, 2025 | TMUS T-Mobile US, Inc. | Gift | 65,500 | - | - | Direct |
| Nov 18, 2025 | TMUS T-Mobile US, Inc. | Sale | 22,500 | $214.25 | $4,820,625 | Direct |
| Nov 17, 2025 | TMUS T-Mobile US, Inc. | Sale | 22,500 | $216.97 | $4,881,825 | Direct |
| Nov 10, 2025 | TMUS T-Mobile US, Inc. | Gift | 43,318 | - | - | Direct |
| Nov 9, 2025 | TMUS T-Mobile US, Inc. | Tax Payment | 44,140 | $207.00 | $9,136,996 | Direct |
1-10 of 28 transactions