13F Pro

SEC Form 4 reporting owner

Kemper J Mariner

Kemper J Mariner has filed 13 Form 4 transactions reported between December 8, 2025 and August 4, 2026, as Chairman and CEO of UMB FINANCIAL CORP.

Name as filed: KEMPER J MARINER

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$7.0M
6 lines
Companies
1
with Form 4 filings
Latest transaction
Aug 4, 2026
transaction date

Roles and reported holdings

  • UMBFUMB FINANCIAL CORP
    Dec 8, 2025 – Aug 4, 2026

    Chairman and CEO

    Held directly328,710 sh as of Feb 11, 2026 · Form 4
    Held indirectly (latest line)1,491,138 sh as of Aug 4, 2026 · Form 4

    24 months: $7.0M sold

Transaction history

All 13 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 4, 2026UMBFChairman and CEOOpen-market saleCode S · indirect15,062$2.2M@ $148.55Form 4
Aug 3, 2026UMBFChairman and CEOOpen-market saleCode S · indirect4,200$619K@ $147.27Form 4
Aug 3, 2026UMBFChairman and CEOGiftCode G · indirect9,761—Form 4
Feb 11, 2026UMBFChairman and CEOShares withheld for tax or exercise priceCode F · direct1,090$144K@ $132.16Form 4
Feb 10, 2026UMBFChairman and CEOShares withheld for tax or exercise priceCode F · direct1,721$229K@ $132.87Form 4
Feb 9, 2026UMBFChairman and CEOGrant or awardCode A · direct16,510—Form 4
Feb 9, 2026UMBFChairman and CEOShares withheld for tax or exercise priceCode F · direct1,904$256K@ $134.29Form 4
Feb 7, 2026UMBFChairman and CEOShares withheld for tax or exercise priceCode F · direct2,043$274K@ $134.32Form 4
Feb 2, 2026UMBFChairman and CEOOpen-market saleCode S · indirect7,242$936K@ $129.19Form 4
Feb 2, 2026UMBFChairman and CEOOpen-market saleCode S · indirect7,972$1.0M@ $128.04Form 4
Feb 2, 2026UMBFChairman and CEOOpen-market saleCode S · direct3,500$452K@ $129.06Form 4
Dec 31, 2025UMBFChairman and CEOShares withheld for tax or exercise priceCode F · direct7,629$878K@ $115.04Form 4
Dec 8, 2025UMBFChairman and CEOOpen-market saleCode S · indirect15,367$1.8M@ $114.58Form 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.