J. Mariner Kemper - 14 Mar 2025 SCHEDULE 13D/A Report for UMB FINANCIAL CORP Common Stock, $1.00 par value (UMBF)

Filing Manager
J. Mariner Kemper
Reporting Manager
J MARINER KEMPER
Security
UMB FINANCIAL CORP Common Stock, $1.00 par value
Symbol
UMBF
Shares outstanding
76,109,189 shares
Disclosed Ownership
3,660,852 shares
Ownership
4.8%
Form type
SCHEDULE 13D/A
Filing time
23 Mar 2026, 21:28:12 UTC
Date of event
14 Mar 2025
Previous filing
04 Feb 2025
SEC
View on sec.gov

Quoteable Key Fact

"J. Mariner Kemper disclosed 4.8% ownership in UMB FINANCIAL CORP Common Stock, $1.00 par value (UMBF) on 14 Mar 2025."

Quick Takeaways

  • J. Mariner Kemper filed SCHEDULE 13D/A for UMB FINANCIAL CORP Common Stock, $1.00 par value (UMBF).
  • Disclosed ownership: 4.8%.
  • Date of event: 14 Mar 2025.

What Changed

  • Previous schedule filing date: 04 Feb 2025.
  • Current filing was accepted on 23 Mar 2026, 21:28.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
J MARINER KEMPER 4.8% 3,660,852 2,505,138 1,555,714 /s/ J. Mariner Kemper J. Mariner Kemper 0001229109
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