J. Mariner Kemper

J. Mariner Kemper is a declared insider of UMB Financial Corp (chief executive), with filings sourced from SEC (Form 4). We count 156 filings; the first trade dates from 25 January 2016 and the latest from 4 August 2026.

Every open-market trade on record is a sale: 117 sales worth €11.7M. The rest of the record consists of 29 share grants and 7 option exercises. In 2026 alone, the filings show no purchases and 3 sales.

Most recently, on 6 August 2026, the filings show an open-market sale worth €1.9M in UMB Financial Corp. Typically, a trade is published a median of 2 days after it takes place. The legal deadline for a Form 4 is two business days after the transaction. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.