SEC Form 4 reporting owner

Sievert G Michael

Sievert G Michael has filed 6 Form 4 transactions reported between December 3, 2025 and June 1, 2026, as Director of ALASKA AIR GROUP, INC., Director of STARBUCKS CORP and Director of T-Mobile US, Inc..

Name as filed: SIEVERT G MICHAEL

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$20.5M
3 lines
Companies
3
with Form 4 filings
Latest transaction
Jun 1, 2026
transaction date

Roles and reported holdings

  • ALKALASKA AIR GROUP, INC.
    Jun 1, 2026

    Director

    No common-stock holding reported on a purchase, sale, gift or withholding line.

  • SBUXSTARBUCKS CORP
    Mar 25, 2026

    Director

    No common-stock holding reported on a purchase, sale, gift or withholding line.

  • TMUST-Mobile US, Inc.
    Dec 3, 2025 – Feb 24, 2026

    Director

    Held directly125,696 sh as of Feb 24, 2026 · Form 4

    24 months: $20.5M sold

Transaction history

All 6 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Jun 1, 2026ALKDirectorGrant or awardCode A · direct4,258$190K@ $44.52Form 4
Mar 25, 2026SBUXDirectorGrant or awardCode A · direct3,667—Form 4
Feb 24, 2026TMUSDirectorOpen-market saleCode S · direct1,089$242K@ $221.85Form 4
Feb 23, 2026TMUSDirectorOpen-market saleCode S · direct13,911$3.1M@ $220.07Form 4
Feb 19, 2026TMUSDirectorOpen-market saleCode S · direct80,000$17.2M@ $214.94Form 4
Dec 3, 2025TMUSDirectorGiftCode G · direct65,500—Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.