Kemper J Mariner

Kemper J Mariner is listed in filings as Chairman and CEO at UMB Financial Corp. This profile follows SEC Form 4 activity through Feb 13, 2026, including sale activity. Recent filings connect the profile to UMB Financial Corp (UMBF). The current snapshot covers public activity from Dec 4, 2024 to Feb 13, 2026. Reported amounts are shown as $144.1K to $255.7K. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.