Form 4: UMB Financial CEO Sells Shares Under 10b5-1 Plan

UMB Financial Corp's Chairman and CEO, J Mariner Kemper, sold 15,367 shares of common stock for approximately $1.76 million as part of a pre-arranged trading plan.

Summary

• J Mariner Kemper, Chairman and CEO of UMB Financial Corp (UMBF), reported a sale of common stock.
• The transaction involved the disposition of 15,367 shares of UMBF common stock.
• The shares were sold on December 8, 2025, at a weighted average price of $114.58 per share.
• The sale was executed in multiple transactions with prices ranging from $114.14 to $115.05.
• The total value of the shares sold amounts to approximately $1,760,999.86.
• The transaction was made pursuant to a Rule 10b5-1(c) contract, instruction, or written plan.
• Following the transaction, Mr. Kemper's beneficial ownership includes 329,479.2177 shares held directly and various indirect holdings through trusts and custodial accounts, totaling approximately 2,578,194.2977 shares.

Sentiment

Score: 5

Explanation: The sentiment is neutral. The sale is a pre-planned transaction under a 10b5-1 plan, which is a routine event for executives and does not typically signal a change in company prospects or management's confidence, especially given the relatively small size compared to total holdings.

Positives

• The sale was conducted under a Rule 10b5-1 plan, indicating it was pre-scheduled and not based on new, non-public information, which mitigates concerns about insider selling.

Negatives

• While planned, the sale by a key executive could be perceived by some as a minor reduction in direct exposure to the company's equity, though it represents a small fraction of total beneficial ownership.

Future Outlook

This filing is a report of an insider transaction and does not contain any forward-looking statements or guidance regarding the company's future outlook.

Industry Context

This insider transaction is a routine disclosure for a publicly traded financial institution. It does not inherently reflect broader industry trends but rather an individual executive's portfolio management strategy, particularly given the pre-arranged 10b5-1 plan.

Related Party Transactions

• J Mariner Kemper holds indirect beneficial ownership through various trusts (RC Kemper Irrevocable Trust, TUW RC Kemper For John Mariner, Mary S Hunt Trust, Megan Kemper Trust) and custodial brokerage accounts for his daughter and son, as well as through Kemper Realty and Pioneer Service Corporation.

Stakeholder Impact

• Shareholders: The sale is a routine insider transaction under a 10b5-1 plan and is unlikely to have a significant impact on shareholder confidence or the company's operational strategy.
• Employees, Customers, Suppliers, Creditors: No direct impact is expected from this insider stock transaction.

Key Dates

Recommendation

The reported transaction is a pre-planned sale by the CEO under a Rule 10b5-1 plan, which is a common practice for executives to manage personal liquidity and diversify holdings without being subject to insider trading accusations. The amount sold represents a small fraction of the CEO's total beneficial ownership in UMB Financial Corp. This type of routine, pre-scheduled transaction typically does not indicate a change in the company's fundamentals or future prospects, nor does it suggest a lack of confidence from management. Therefore, a 'hold' recommendation is appropriate, as this filing alone does not provide sufficient new information to warrant a change in investment thesis.

Keywords

UMB Financial Corp, UMBF, J Mariner Kemper, Insider Sale, Form 4, CEO, Director, 10b5-1 Plan, Stock Transaction