UMB Financial CEO Kemper Mariner Sells 4,200 Shares

What Happened
Kemper J. Mariner, Chairman and CEO of UMB Financial Corp (UMBF), disposed of 4,200 shares in an open-market sale on August 3, 2026 for a reported total of approximately $618,534 (weighted-average price $147.27). On the same date he also made a gift of 9,761 shares (reported $0 acquisition value). Sales are typically liquidity events and gifts are generally non-market-sentiment transfers; the filing shows a sale plus a separate gift rather than a purchase.

Key Details

• Transaction date: August 3, 2026. Form filed August 4, 2026 (timely).
• Sale: 4,200 shares disposed, weighted-average price $147.27, total proceeds ≈ $618,534.
• Gift: 9,761 shares transferred as a gift (acquired at $0).
• Footnote: Price is a weighted average; individual sale prices ranged from $147.23 to $147.31. The filer can provide a per-price breakdown on request (see F1).
• Shares owned after transaction: not specified in the provided summary of the filing.

Context
This filing reports a sale and a gift—neither is a purchase signal. Gifts do not necessarily indicate the insider’s view of the company’s prospects (they are often for estate planning or personal reasons). The sale appears to be an ordinary disposition rather than an option exercise or a 10% owner transaction; no 10b5-1 plan or tax-withholding notation is reported in the provided details.