KEMPER J MARINER 4

What Happened
Kemper J. Mariner, Chairman and CEO of UMB Financial Corp (UMBF), had 1,090 shares disposed on Feb 11, 2026 at $132.16 per share, resulting in proceeds of approximately $144,054. This disposition was a tax-withholding/settlement action tied to vested restricted stock units (not an open-market, discretionary sale).

Key Details

• Transaction date: 2026-02-11; Price: $132.16 per share; Shares disposed: 1,090; Total value ≈ $144,054.
• Transaction code: F — payment of exercise price or tax liability (shares were used to satisfy tax withholding).
• Filing: Report filed 2026-02-13 (two days after the transaction), which appears timely under SEC Form 4 reporting rules.
• Footnote: Reflects dividends earned upon vesting of the underlying restricted stock unit.
• Shares owned after the transaction: not specified in the provided excerpt of the filing.

Context
This was a routine withholding/satisfaction of tax obligations associated with RSU vesting (including dividend equivalents), not an indicative discretionary sale of additional shares. Such transactions are common when restricted awards vest and do not necessarily reflect the insider’s view on the company’s stock.