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  3. SIEVERT G MICHAEL

SIEVERT G MICHAEL

CIK: 0001182438
Primary company: T-Mobile US, Inc. (TMUS)

SIEVERT G MICHAEL is a corporate insider at T-Mobile US, Inc. (TMUS) filing SEC Form 4 transactions. 156 transactions across 5 companies, totaling $0 in purchases and $176,712,227 in sales. Source: SEC EDGAR.

Total Transactions
156
Total Buy Value
$0
Total Sell Value
$176.71M
Net Activity
$-176.71M
Last Transaction
Jun 2026
Companies
5

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Company
Type
Shares
Price
Value
Shares After
Date
SEC
ALASKA AIR GROUP, INC.
ALK
Award4,258$44.52$190K4,258
6/1/2026
Filed: 6/1/2026
Filing →
STARBUCKS CORP
SBUX
Award3,667--10,878
3/25/2026
Filed: 3/25/2026
Filing →
T-Mobile US, Inc.
TMUS
Sale1,089$221.85$242K125,695
2/24/2026
Filed: 2/23/2026
Filing →
T-Mobile US, Inc.
TMUS
Sale13,911$220.07$3.06M126,784
2/23/2026
Filed: 2/23/2026
Filing →
T-Mobile US, Inc.
TMUS
Gift65,500--220,695
12/3/2025
Filed: 12/4/2025
Filing →
T-Mobile US, Inc.
TMUS
Sale22,500$214.25$4.82M286,195
11/18/2025
Filed: 11/19/2025
Filing →
T-Mobile US, Inc.
TMUS
Sale22,500$216.97$4.88M308,695
11/17/2025
Filed: 11/19/2025
Filing →
T-Mobile US, Inc.
TMUS
Gift43,318--331,195
11/10/2025
Filed: 11/12/2025
Filing →
T-Mobile US, Inc.
TMUS
Tax Payment53,482$207.00$11.07M374,513
11/9/2025
Filed: 11/12/2025
Filing →
T-Mobile US, Inc.
TMUS
Award135,915--427,996
11/9/2025
Filed: 11/12/2025
Filing →
T-Mobile US, Inc.
TMUS
Tax Payment44,140$207.00$9.14M292,081
11/9/2025
Filed: 11/12/2025
Filing →
T-Mobile US, Inc.
TMUS
Sale22,500$257.17$5.79M336,221
8/19/2025
Filed: 8/20/2025
Filing →
T-Mobile US, Inc.
TMUS
Sale22,500$255.58$5.75M358,721
8/18/2025
Filed: 8/20/2025
Filing →
T-Mobile US, Inc.
TMUS
Sale22,500$240.99$5.42M381,221
5/20/2025
Filed: 5/21/2025
Filing →
T-Mobile US, Inc.
TMUS
Sale22,500$244.40$5.50M403,721
5/19/2025
Filed: 5/21/2025
Filing →
T-Mobile US, Inc.
TMUS
Tax Payment50,222$268.54$13.49M426,221
4/1/2025
Filed: 4/3/2025
Filing →
T-Mobile US, Inc.
TMUS
Award127,631--476,444
4/1/2025
Filed: 4/3/2025
Filing →
STARBUCKS CORP
SBUX
Award3,141--7,211
3/12/2025
Filed: 3/14/2025
Filing →
T-Mobile US, Inc.
TMUS
Sale22,500$263.98$5.94M348,813
2/26/2025
Filed: 2/27/2025
Filing →
T-Mobile US, Inc.
TMUS
Sale22,500$269.67$6.07M371,313
2/25/2025
Filed: 2/27/2025
Filing →
ALASKA AIR GROUP, INC.
ALK
Type
Award
Shares
4,258
Price
$44.52
Value
$190K
STARBUCKS CORP
SBUX
Type
Award
Shares
3,667
Price
-
Value
-
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
1,089
Price
$221.85
Value
$242K
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
13,911
Price
$220.07
Value
$3.06M
T-Mobile US, Inc.
TMUS
Type
Gift
Shares
65,500
Price
-
Value
-
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
22,500
Price
$214.25
Value
$4.82M
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
22,500
Price
$216.97
Value
$4.88M
T-Mobile US, Inc.
TMUS
Type
Gift
Shares
43,318
Price
-
Value
-
T-Mobile US, Inc.
TMUS
Type
Tax Payment
Shares
53,482
Price
$207.00
Value
$11.07M
T-Mobile US, Inc.
TMUS
Type
Award
Shares
135,915
Price
-
Value
-
T-Mobile US, Inc.
TMUS
Type
Tax Payment
Shares
44,140
Price
$207.00
Value
$9.14M
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
22,500
Price
$257.17
Value
$5.79M
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
22,500
Price
$255.58
Value
$5.75M
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
22,500
Price
$240.99
Value
$5.42M
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
22,500
Price
$244.40
Value
$5.50M
T-Mobile US, Inc.
TMUS
Type
Tax Payment
Shares
50,222
Price
$268.54
Value
$13.49M
T-Mobile US, Inc.
TMUS
Type
Award
Shares
127,631
Price
-
Value
-
STARBUCKS CORP
SBUX
Type
Award
Shares
3,141
Price
-
Value
-
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
22,500
Price
$263.98
Value
$5.94M
T-Mobile US, Inc.
TMUS
Type
Sale
Shares
22,500
Price
$269.67
Value
$6.07M
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© 2026 13F Insight — Track smart money. Ask the AI Agent.

Listed on Turbo0Featured on Findly ToolsFeatured on toolfame.comFeatured on saasfame.comFeatured on Gets.ToolsZ-ImageFeatured On Micro SaaS ExamplesListed on MarketingDBFeatured on SaasDBFeatured on FazierBusiness Services - OnToplist.comFeatured on SubmitMySaasFeatured on ToolDirsFeatured on ToolfioFeatured on Twelve ToolsListed on uno directoryFeatured on Dang.aiFeatured on ToolPilotFeatured on Startup FameFeatured on PostmakeFeatured on Code.Market