Insider Trading & Ownership of J. Mariner Kemper

Location
Kansas City, MO
Summary
The estimated net worth of J. Mariner Kemper is at least $312,003,705 dollars as of 13 Feb 2026. J. Mariner Kemper is the Chairman and CEO, Director of UMB FINANCIAL CORP and owns shares of UMB FINANCIAL CORP (UMBF) stock worth about $312M.
Signature
/s/ Jason Bartel, attorney-in-fact for Mr. Kemper
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Ownership of J. Mariner Kemper

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
UMBF, UMBFO UMB FINANCIAL CORP Chairman and CEO, Director $312,003,705 -$7,467,026 -2.3% 11 Feb 2026

Insider Transactions Reported by J. Mariner Kemper:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.