Question 1

Who is J. Mariner Kemper?

Accepted Answer

J. Mariner Kemper serves as Executive at UMB FINANCIAL CORP (UMBF). They have executed 3671 insider transactions totaling $79.7M over their tenure at the company.

Question 2

What is J. Mariner Kemper's role at UMB FINANCIAL CORP?

Accepted Answer

J. Mariner Kemper holds the position of Executive at UMB FINANCIAL CORP, where they are responsible for executive-level decision-making and strategic oversight. They have been associated with the company for 20 years and currently hold a stake valued at $0.

Question 3

Is J. Mariner Kemper buying or selling UMBF stock?

Accepted Answer

J. Mariner Kemper has shown a selling trading pattern, with $0 in total purchases and $79.7M in total sales across all transactions. Their most recent activity indicates a tendency to reduce their position.

Question 4

What are J. Mariner Kemper's largest insider transactions?

Accepted Answer

The largest transaction by J. Mariner Kemper was on Sep 3, 2024, when they sold $1.9M worth of UMBF shares. This transaction involved 18,600 shares at $103.17 per share.

Question 5

What is J. Mariner Kemper's trading accuracy?

Accepted Answer

J. Mariner Kemper has a Personal Accuracy Score of 99/100, which measures the historical performance of their insider transactions. This score is calculated based on the timing and performance of their trades relative to market movements.

Question 6

How many companies is J. Mariner Kemper associated with?

Accepted Answer

J. Mariner Kemper has filed Form 4 transactions for 1 different company. Their primary association is with UMB FINANCIAL CORP (UMBF), where they serve as Executive.

Question 7

How much UMBF stock does J. Mariner Kemper own?

Accepted Answer

J. Mariner Kemper currently owns 331,122.22 shares of UMB FINANCIAL CORP (UMBF), with an estimated value of $0. This stake represents their equity holdings accumulated through purchases, awards, and option exercises.

Question 8

What is J. Mariner Kemper's equity in UMB FINANCIAL CORP?

Accepted Answer

J. Mariner Kemper's equity position in UMB FINANCIAL CORP consists of 331,122.22 shares valued at approximately $0. As Executive, they have executed 3671 insider transactions, with $0 in purchases and $79.7M in sales.

Question 9

Where can I find J. Mariner Kemper's SEC Form 4 filings?

Accepted Answer

All of J. Mariner Kemper's SEC Form 4 insider trading filings are tracked on this page. Each transaction links directly to the official SEC EDGAR filing. J. Mariner Kemper has 3671 Form 4 filings on record as an insider at UMB FINANCIAL CORP.

Question 10

What is J. Mariner Kemper's net worth from UMBF?

Accepted Answer

Based on their current UMBF stock holdings, J. Mariner Kemper has equity worth approximately $0 in UMB FINANCIAL CORP. This value is based on 331,122.22 shares at current market prices and does not represent their total net worth, which may include other assets and investments.

DATE	TICKER	VALUE	TYPE	SHARES	PRICE	10b5-1
Feb 9, 2026	UMBF	$255.7K	Payment	1,904	$134.29	Discretionary
Dec 8, 2025	UMBF	$1.8M	Sale	15,367

J. Mariner Kemper

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J. Mariner Kemper Trading Summary

How Much UMBF Stock Does J. Mariner Kemper Own?

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J. Mariner Kemper's Recent Stock Transactions

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