J. Kemper
Net worth: 275 M $ as of 31/05/2026
Net worth: 275 M $ as of 31/05/2026
J. Mariner Kemper is a businessperson who has been at the head of 8 different companies and is Chairman, President & Chief Executive Officer for UMB Financial Corp. Mr. Kemper is also Member of The Civic Council of Greater Kansas City and on the board of 6 other companies. In the past he held the position of Chairman & Chief Executive Officer at UMB Bank, NA (Investment Management), Chairman at UMB Bank, NA, Chairman at UMB Bank Colorado, NA, Director at Scout Investments, Inc., Chairman at The Denver Art Museum Foundation, Chairman for Denver Art Culture & Film Foundation and Member of Downtown Council of Kansas City. He received an undergraduate degree from the University of Puget Sound.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 02/03/2026 | 2,095,667 ( 2.76% ) | 275 M $ | 31/05/2026 |
| Companies | Position | Start |
|---|---|---|
| UMB FINANCIAL CORPORATION | Chief Executive Officer | 01/05/2004 |
Kemper Museum of Contemporary Art
Kemper Museum of Contemporary Art Other Consumer ServicesConsumer Services Operates museums | Director/Board Member | - |
Cboe Exchange, Inc.
Cboe Exchange, Inc. Miscellaneous Commercial ServicesCommercial Services Provides security services for innovation and technology markets | Director/Board Member | 01/01/2008 |
The Denver Area Council of Boy Scouts of America | Director/Board Member | 24/03/2009 |
Denver City & County School District No. 1 (Colorado)
Denver City & County School District No. 1 (Colorado) Local AgenciesGovernment Functions as a local school district | Director/Board Member | 24/03/2009 |
The Civic Council of Greater Kansas City
The Civic Council of Greater Kansas City Investment Trusts/Mutual FundsMiscellaneous Operates as a non-profit organization | Corporate Officer/Principal | 24/03/2009 |
The Denver Art Museum
The Denver Art Museum Other Consumer ServicesConsumer Services Operates art galleries and museums | Director/Board Member | - |
Agriculture Future of America
Agriculture Future of America Miscellaneous Commercial ServicesCommercial Services Provides training, scholarships and networking services for students in the field of food and agriculture | Director/Board Member | - |
| Companies | Position | End |
|---|---|---|
UMB Bank, NA
UMB Bank, NA Major BanksFinance Provides commercial banking services | Chairman | 01/06/2015 |
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Active
Inactive
Listed companies
Private companies
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
| Private companies | 26 |
|---|---|
UMB Financial Corp.
UMB Financial Corp. Major BanksFinance Operates as a bank holding company which provides banking services | Finance |
UMB Bank, NA (Investment Management)
UMB Bank, NA (Investment Management) Investment ManagersFinance UMB-IM focuses on investments in the stocks of US large-cap companies. The firm's Large Cap Equity Strategy emphasizes quality growth and is based on GARP methodology. The strategy seeks to add value through rigorous stock selection and active sector selection. They combine a fundamental, bottom-up stock selection approach with a top-down focus on the macro economy. UMB-IM seeks to identify relative value within companies that have proven their ability to grow earnings and cash flow. To construct portfolios, the firm employs internal and external economic research to determine overweighting or underweighting versus the economic sectors of the S&P 500 Index. | Finance |
Scout Investments, Inc.
Scout Investments, Inc. Investment ManagersFinance Scout is an active investment manager who applies bottom-up, repeatable processes that aim to generate positive alpha by applying research-based insights and analysis to portfolio construction. The firm's equity investment teams employ distinct investment philosophies and processes to achieve long-term capital appreciation objectives that are consistent with client goals. They focus on quality, identifying companies that have sound fundamentals, favorable growth prospects, competitive advantages and savvy management teams. | Finance |
UMB Bank, NA
UMB Bank, NA Major BanksFinance Provides commercial banking services | Finance |
Cboe Exchange, Inc.
Cboe Exchange, Inc. Miscellaneous Commercial ServicesCommercial Services Provides security services for innovation and technology markets | Commercial Services |
MRIGlobal
MRIGlobal Miscellaneous Commercial ServicesCommercial Services Operates research and development organizations | Commercial Services |
University of Puget Sound
University of Puget Sound Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Boy Scouts of America
Boy Scouts of America Miscellaneous Commercial ServicesCommercial Services Provides community development programs | Commercial Services |
The Civic Council of Greater Kansas City
The Civic Council of Greater Kansas City Investment Trusts/Mutual FundsMiscellaneous Operates as a non-profit organization | Miscellaneous |
The American Royal Association, Inc.
The American Royal Association, Inc. Miscellaneous Commercial ServicesCommercial Services Provides opportunities for youth and adults to compete in their livestock, rodeo, barbeque, equine and special events | Commercial Services |
The Denver Art Museum
The Denver Art Museum Other Consumer ServicesConsumer Services Operates art galleries and museums | Consumer Services |
The Denver Art Museum Foundation
The Denver Art Museum Foundation Investment Trusts/Mutual FundsMiscellaneous Functions as a foundation or endowment | Miscellaneous |
Cheyenne Mountain Zoo
Cheyenne Mountain Zoo Other Consumer ServicesConsumer Services Operates zoo | Consumer Services |
Kemper Museum of Contemporary Art
Kemper Museum of Contemporary Art Other Consumer ServicesConsumer Services Operates museums | Consumer Services |
The Denver Area Council of Boy Scouts of America | Commercial Services |
UMB Bank Colorado, NA
UMB Bank Colorado, NA Major BanksFinance Nationally chartered commercial bank | Finance |
Downtown Council of Kansas City
Downtown Council of Kansas City Miscellaneous Commercial ServicesCommercial Services Operates membership organization that represents businesses, property owners, and non-profit organizations | Commercial Services |
Western States Arts Federation
Western States Arts Federation The Western States Arts Federation (WESTAF) is a company based in Denver, CO. | |
Regional Air Quality Council
Regional Air Quality Council Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit organization that plans and implements air quality programs | Commercial Services |
Boy's & Girl's Clubs of Metro-Denver, Inc.
Boy's & Girl's Clubs of Metro-Denver, Inc. The company is based in Denver, CO. Part of Boys & Girls Clubs of America, Boy's & Girl's Clubs of Metro-Denver, Inc. is a registered nonprofit organization that provides safe, supportive environments for children and teens ages 5-18 during out-of-school time. The organization serves over 40,000 youth annually through 25 neighborhood clubs, offering low-cost after-school and summer programs focused on academics and careers, character and leadership, healthy lifestyles, and mental health. Academic initiatives emphasize literacy, STEM/STEAM, and career readiness, while leadership programs foster confidence, service, and advocacy. Health programs promote nutrition, physical activity, substance use prevention, and outdoor education, delivered with trauma-informed, culturally responsive approaches. Mental health support includes social-emotional learning and individualized care. The organization prioritizes child safety, diversity, equity, and inclusion, and engages the community through volunteering, donations, and partnerships. The CEO of the company is Erin Porteous. | |
Cherokee Ranch & Castle Foundation | |
Denver City & County School District No. 1 (Colorado)
Denver City & County School District No. 1 (Colorado) Local AgenciesGovernment Functions as a local school district | Government |
National Jewish Health, Inc.
National Jewish Health, Inc. Medical/Nursing ServicesHealth Services Provides treatment of and conducts research in respiratory, immune and allergic disorders | Health Services |
Agriculture Future of America
Agriculture Future of America Miscellaneous Commercial ServicesCommercial Services Provides training, scholarships and networking services for students in the field of food and agriculture | Commercial Services |
Air Quality & Transportation Management Council | |
Denver Art Culture & Film Foundation |
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