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.
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
- 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."
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.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting 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 |