Who
J. Mariner Kemper
Chairman and CEO
Company insider
Files Form 4 as: Chairman and CEO, UMB Financial.
In numbers
- Trades disclosed
- 3,777
- Buys
- 0
- Sells
- 241
- Bought
- $0
- Sold
- $99.3M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 19 Apr 2006
- Last trade
- 4 Aug 2026
- Last filed
- 6 Aug 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 4 Aug 2026filed 6 Aug 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Sold | $2.2M15,062 at $148.55 | filing |
| 4 Aug 2026filed 6 Aug 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Sold | $2.2M15,062 at $148.55 | filing |
| 3 Aug 2026filed 4 Aug 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code G | —9,761 at $0.00 | filing |
| 3 Aug 2026filed 4 Aug 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Sold | $619K4,200 at $147.27 | filing |
| 3 Aug 2026filed 4 Aug 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code G | —9,761 at $0.00 | filing |
| 3 Aug 2026filed 4 Aug 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Sold | $619K4,200 at $147.27 | filing |
| 11 Feb 2026filed 13 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code F | $144K1,090 at $132.16 | filing |
| 11 Feb 2026filed 13 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code F | $144K1,090 at $132.16 | filing |
| 10 Feb 2026filed 12 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code F | $229K1,721 at $132.87 | filing |
| 10 Feb 2026filed 12 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code F | $229K1,721 at $132.87 | filing |
| 9 Feb 2026filed 11 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code F | $256K1,904 at $134.29 | filing |
| 9 Feb 2026filed 11 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code F | $256K1,904 at $134.29 | filing |
| 9 Feb 2026filed 10 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code A | —16,510 at $0.00 | filing |
| 9 Feb 2026filed 10 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code A | —16,510 at $0.00 | filing |
| 7 Feb 2026filed 10 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code F | $274K2,043 at $134.32 | filing |
| 7 Feb 2026filed 10 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Code F | $274K2,043 at $134.32 | filing |
| 2 Feb 2026filed 3 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Sold | $452K3,500 at $129.06 | filing |
| 2 Feb 2026filed 3 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Sold | $1.0M7,972 at $128.04 | filing |
| 2 Feb 2026filed 3 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Sold | $936K7,242 at $129.19 | filing |
| 2 Feb 2026filed 3 Feb 2026 | UMBF UMB FinancialRegional banks | SEC FORM 4 Sold | $452K3,500 at $129.06 | filing |
The newest 500 lines are listed; the numbers count every line.
News
Critical Contrast: Business First Bancshares (NASDAQ:BFST) versus UMB Financial (NASDAQ:UMBF)UMBF · dailypolitical.com · 15 Oct 2026
0 headlines in the last 90 days name J. Mariner Kemper; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.