KEMPER J MARINER 4

What Happened

• Kemper J. Mariner, Chairman and CEO of UMB Financial Corp (UMBF), surrendered 1,721 shares to satisfy tax withholding obligations related to vested restricted stock units (RSUs). The withholding was recorded at $132.87 per share, totaling approximately $228,669. This was a net-settlement/tax-withholding event (not an open-market sale).

Key Details

• Transaction date: 2026-02-10
• Price per share: $132.87; total value withheld: ~$228,669
• Transaction type: tax withholding/net settlement of RSUs (reported as disposition)
• Footnote: F1 — Reflects dividends earned upon vesting of the underlying restricted stock units
• Filing date: 2026-02-12 (no late filing indicated in the provided data)
• Shares owned after transaction: not stated in the provided filing

Context

• This was a routine net settlement to cover tax liabilities on vesting RSUs, not a bullish or bearish open-market trade. Such withholdings are common and do not necessarily signal management’s market view.