Board of Directors

Since August 2014, Mr. Brenneman has been a board member, independent business consultant and advisor. From 2011 until August 2014, Mr. Brenneman served as the President and Chief Executive Officer of Butterball LLC, the largest integrated turkey processing company in the United States and a joint venture of Seaboard Corporation and Maxwell Foods, LLC. Prior to serving as President and Chief Executive Officer of Butterball, LLC, Mr. Brenneman served in various financial and management capacities at Seaboard Corporation (NYSE: SEB), a global agribusiness and transportation company, from 1989 until 2011. Mr. Brenneman served as President and Chief Executive Officer of Seaboard Foods from 2001 until 2011, as Senior Vice- President and Chief Financial Officer of Seaboard Foods from 1999 to 2001, as Senior Vice President, Live Production for Seaboard Foods from 1996 until 1999 and Vice President – Finance and Administration of Seaboard Foods from 1994 to 1996. Prior to joining Seaboard, Mr. Brenneman was an accountant for several years with Arthur Andersen. Mr. Brenneman is a CPA and graduated from Wichita State University. Mr. Brenneman has served on several boards, both for-profit and not-for-profit, and is involved in private equity. Mr. Brenneman previously served on the board of CrossFirst Bank from 2009 until 2012. Currently, he serves on the boards of directors of Clemens Family Corporation, McKee Foods, Great Lakes Cheese Co., Inc., P&P Optica Inc., Lifesong for Orphans, Inc. and Made to Flourish, Inc.

Mr. Bruce has served as the CEO of Aladdin Petroleum Corporation, an oil and gas exploration and production company since 1993. Mr. Bruce has also served as general counsel for Aladdin Middle-East, Ltd., a private petroleum exploration, production and drilling company, primarily active in the Republic of Turkey since 1980 and serves as its Vice Chairman and Executive Vice President. In his legal career, Mr. Bruce was a law partner of Hall, Pike & Bruce from 1980 1988 and Martin, Pringle, Oliver, Wallace & Bauer, LLP from 1988 until his retirement in January 2022, where he was a former managing partner and senior commercial attorney. Mr. Bruce served as corporate counsel for Union Bankshares, Inc., the holding company for Union National Bank of Wichita, for 10 years from 1985 through its acquisition by Commerce Bank in 1995. Mr. Bruce also provided legal advice to numerous banks in the areas of commercial and regulatory activities, obtaining de novo charters, and mergers and acquisitions. Mr. Bruce received a B.A. degree in History from the University of Kansas and his law degree from Washburn University School of Law. He has served on the board of directors of CrossFirst Bank since 2021, and Aladdin Petroleum Corporation since 1993, and the board of Aladdin Middle-East, Ltd. since 1990. Additionally, Mr. Bruce has served on the board for Heartland Community Church since 1993 and is a former board member of Trinity Academy of Wichita.

Mr. Caple has held the position of President of Unity Hunt, Inc. (“UHI”), the company through which the family of Lamar Hunt oversees its holdings, since January 2011. Additionally, Mr. Caple serves in various roles for many of the Hunt family’s trusts and portfolio companies. Mr. Caple is also the co-owner of TRL Management, LLC, Farmersville Holdings, LLC and Hickory Creek Real Estate, LLC. Prior to joining UHI, Mr. Caple served as President of VFT Capital, LP (“VFT”). Before VFT, Mr. Caple served as President of Novo Networks, Inc., and he previously held legal or management positions with GTE Corporation (now Verizon Communications, Inc., NYSE: VZ), Chancellor Media Corporation (now iHeart Media Inc., Nasdaq: IHRT), and Marcus Cable, LP (now Charter Communications, Inc., Nasdaq: CHTR). Mr. Caple also practiced law with the firm of Patton, Haltom, Roberts, McWilliams & Greer, LLP. Mr. Caple received his bachelor’s degree from the University of Texas at Dallas and a law degree, with honors, from the University of Arkansas, where he served as the Managing Editor of the Arkansas Law Review. Mr. Caple currently serves as Chairman of Hunt Midwest Enterprises, Inc. and Hunt Southwest Real Estate Development, LLC, and he is presently serving on the Board of Directors or Managers, respectively, for each of UHI, Hunt Sports, LLC, Placid Holding Company, Inc., and Trinity Hunt Management GP, LLC. Mr. Caple has also been involved with several industry associations and non-profit organizations, including service on the Board of Directors of the Texas Alternative Investments Association, the Host Committee of the Great Investors’ Best Ideas Foundation Investment Symposium, the Board of Directors of the National Archives Foundation, the Law Committee of Campaign Arkansas, and the Centennial Committee of the University of Arkansas School of Law.

Mr. Geist has served since June 2014 as President of RAGE Administrative and Marketing Services (“RAMS”), a large franchisee of restaurants. Prior to being appointed President, Mr. Geist served as Real Estate Director at RAMS. Additionally, Mr. Geist has served as Managing Partner of Starwood Investments, L.P. (“Starwood”) since February 2012. Starwood has holdings in securities, real estate, and other investments. Prior to joining RAMS and Starwood, Mr. Geist served as President of Blue Ribbon Technologies, a provider of document imaging and storage, as well as customizable web design. Before joining Blue Ribbon, Mr. Geist was Managing Partner and owner of Zland of Denver, a company that provides integrated web-based applications for the marketing, commerce and operations of business. Mr. Geist has also held various positions for Beauty First, a provider of hair care services and products throughout its chain of stores. Mr. Geist is a partner in Flint Oak Ranch, which is a private hunting resort. Mr. Geist received his B.S. degree from the University of Kansas. He has served on the board of CrossFirst Bank since 2013.

Ms. Grigsby has over 30 years of senior management experience in accounting, treasury, risk management, corporate governance, and corporate finance, primarily in the oil and gas exploration and production industry. Most recently, Ms. Grigsby served as Secretary of Economic Administration for the State of Oklahoma from March 2021 through November 2022. In this role, Ms. Grigsby oversaw more than 20 state agencies including the Oklahoma Employment Security Commission, the Office of the State Treasurer, the Oklahoma Tax Commission, the Lottery Commission and the State’s Pension and Retirement Systems. Prior to this role, Ms. Grigsby served as Executive Vice President and Chief Financial Officer of Ascent Resources, LLC (‘Ascent”), an oil and gas exploration and production company located in Oklahoma City, Oklahoma, from July 2015 until May 2020. On February 6, 2018, three affiliated entities of Ascent, namely Ascent Resources Marcellus Holdings, LLC, Ascent Resources – Marcellus, LLC, and Ascent Resources Marcellus Minerals, LLC (collectively, the "Marcellus Affiliates"), filed a joint plan of reorganization pursuant to chapter 11 of the United States Bankruptcy Code (such plan, as amended, the "Reorganization Plan"). Ms. Grigsby was Executive Vice President and Chief Financial Officer of each of the Marcellus Affiliates at the time of the filing, On March 30, 2018, the Reorganization Plan was confirmed by the United States Bankruptcy Court for the District of Delaware and on May 8, 2018, the chapter 11 bankruptcy cases of the Marcellus Affiliates were closed. Prior to Ascent, Ms. Grigsby served as Chief Financial Officer of American Energy –Woodford, LLC and Chief Executive Officer and Chief Financial Officer of American Energy Minerals, LLC from February 2015 to July 2015. Prior to her roles at American Energy, Ms. Grigsby spent almost 19 years with Chesapeake Energy Corporation (NYSE: CHK) and served in various executive roles, including Senior Vice President, Treasurer and Corporate Secretary, and Senior Vice President – Corporate and Strategic Planning. Ms. Grigsby is also a principal and co-founder of Amethyst Investments, LLC, a passive financial investment company in Oklahoma City, Oklahoma. Ms. Grigsby currently serves on the board of directors health, safety and environment committee and audit committee of Superior Plus Corp. (TSX: SBP); and on the board of directors and investment committee of CompSource Mutual Insurance Company. She previously served on the board of directors of Silverbow Resources, Inc. (NYSE: SBOW). Ms. Grigsby is a Certified Public Accountant and Chartered Global Management Accountant and is a member of the Oklahoma Society of Certified Public Accountants and the American Institute of Certified Public Accountants. Ms. Grigsby is also National Association of Corporate Directors (NACD) Directorship Certified^TM.

Mr. Humphreys has served as Manager and Lead Investor of 410 Investments, LLC (“410”) since May 2007. 410 is focused on commercial real estate and private equity. He also serves as a Managing Partner of 640 Legacy Partners, LLC, which owns and manages commercial real estate and other alternative assets. Mr. Humphreys previously served as Manager of Covenant Hospitality, LLC from February 2011 through May 2016. Mr. Humphreys graduated from the University of Oklahoma, where he studied Marketing. Mr. Humphreys also studied at Denver Seminary and spent eight years as the senior leader of Bridgeway Church in Oklahoma City. Mr. Humphreys served on the board of CrossFirst Bank from 2012 until 2018. He is a current board member for 640 Legacy Partners, LLC, Martin Bionics Kize, and Humphreys Real Estate Income Fund.

Mr. King is a principal at Luther King Capital Management (“LKCM”), an investment management company. He joined the firm in 2004 and serves as Director of Public Equity Investment Strategies and as a portfolio manager. Prior to joining LKCM, Mr. King was an equity analyst at Hester Capital Management and a private equity investment analyst at Pacesetter Capital Group and Crates Thompson Capital. Mr. King graduated with a Bachelor of Arts in English Literature from Princeton University and a Master of Business Administration from the University of Texas at Austin. He also completed the TCU Ranch Management Program. Mr. King holds board positions with St. Mark’s School of Texas, Caesar Kleberg Wildlife Research Institute, Texas and Southwestern Cattle Raisers Foundation, LKCM Center for Financial Studies at TCU and the University of Texas MBA Investment Fund. He has served on the board of CrossFirst Bank since 2018.

Mr. Kuykendall owns and is President of Equipment World, Inc., a construction equipment dealership located in Tulsa, Oklahoma. The business sells equipment across the country and serves a regional area providing rentals, parts and services. Mr. Kuykendall joined the company in 1987 upon his graduation from Oklahoma State University and has spent over 35 years working to build the business. Mr. Kuykendall is involved in various industry associations and serves on the board of the Association of Oklahoma General Contractors. He has served on the board of CrossFirst Bank since 2017.

Mr. Maddox has served as President and CEO of the Company since June 1, 2020, and CEO of the Bank since November 28, 2008. He also served as President of the Bank from November 28, 2008 until July 1, 2022 when the roles of CEO and President of the Bank were split. Prior to joining the Bank, he was a Regional President for Intrust Bank. In this role, he managed Intrust Bank’s operations in Northeast Kansas. Mr. Maddox has over 20 years of banking experience. Mr. Maddox attended the University of Kansas from which he received a business degree and a law degree. While at KU, Mr. Maddox was a four-year basketball letterman and a member of the KU team that won the National Championship in 1988. Mr Maddox completed the Graduate School of Banking at the University of Wisconsin – Madison in 2003. Mr. Maddox is a member of the Economic Development Board of Johnson County, Kansas and serves on the Kansas City Civic Council. He has served on the board of CrossFirst Bank since 2008 and currently serves as Chairman of the Board of CrossFirst Bank. Mr. Maddox’s employment agreement grants him the right to be appointed as a director of the Company and the Bank.

Mr. Rauckman is the owner of, and financial consultant for, Rauckman Advisors, LLC, where he has worked since November 2017. Mr. Rauckman was previously a financial advisor for MoBank (formerly Bank of Kansas City), a subsidiary of BOK Financial Corporation, from February 2015 through May 2016. Prior to joining Bank of Kansas City, Mr. Rauckman served as the Chief Financial Officer and Treasurer of Garmin Ltd. from January 1999 until December 2014. He was named CFO of the Year by the Kansas City Business Journal in 2008. Mr. Rauckman received a B.S. in Business Administration and an MBA degree in Finance from the University of Kansas. Mr. Rauckman serves as a board member and the audit committee chairman of JE Dunn Construction Group; a board member and the nomination/governance committee chairman of MGP Ingredients, Inc. (Nasdaq: MGPI); and a member of the board of CrossFirst Bank since 2018.

Mr. Robinson has over 34 years of leadership experience in telecom infrastructure operations and engineering, technology innovation, corporate security and fraud detection, banking and business risk management. Since March 2006, Mr. Robinson has owned and served as President and CEO of Leadergy Catalyst LLC, a senior leadership and consulting company specializing in emerging technologies, business process development, risk management, and operational scalability. Mr. Robinson has also served in a variety of other senior leadership positions, including Chief Operating Officer of CommLink Technology, President and Chief Operating Officer of Motricity Corp., Division President at TNS, and Senior Vice President, Product Development for Sprint Corporation. He has served on the board of CrossFirst Bank since its inception in 2007.

Mr. Stogner is the President and Owner of Crestview Real Estate, LLC (“Crestview”), which is a full-service commercial real estate company based in Dallas, Texas. Crestview specializes in the development, leasing, property management, and asset management of commercial real estate. Mr. Stogner is also a principal in The Cogent Group, LLC, which is an investment company that specializes in net leased investments. Mr. Stogner has served as President of Crestview and as a principal in The Cogent Group, LLC since April 2008. During his career, which has spanned over 35 years in commercial real estate, he has been involved in the development of over seven million square feet of commercial space primarily in the retail shopping center sector. This has included food-anchored retail centers, specialty centers and single tenant assets. Mr. Stogner graduated from Baylor University with a B.B.A. in Management, Marketing, and Real Estate and was a football letterman.

Mr. Swinson was the CEO of CenTrio Energy, North America’s leading pure-play district energy platform from 2021 until his retirement in October 2023. He led the company’s growth in current and new markets and its transformation to a sustainable energy-centered district energy platform that empowers customers to pursue carbon-reducing district energy operations across North America. Previously, he held the position of President and CEO of Thermal Energy Corporation (TECO), which owns and operates the district energy system supplying thermal utilities to the Texas Medical Center campus, from 2005 to 2021. The company was named International District Energy Association’s 2019 System of the Year under his leadership. Prior to his affiliation with TECO, Mr. Swinson served as president of Cleveland Brothers Construction Company, LLC, a commercial and residential contractor and developer in the Southeast United States. He also served as the chief financial officer for Cleveland Brothers Inc., the parent company for several businesses that included development, real estate, construction, manufacturing, a golf course and a restaurant. Prior to his affiliation with Cleveland Brothers, Mr. Swinson was a Principal for Index Capital, the investment banking division of Index Powered Financial Services, LLC, specializing in the valuation and negotiation for divestiture or acquisition of small- to mid-cap companies. Mr. Swinson served on the Board of Directors of Torotel, Inc. (formerly OTCPK: TTLO) from 2003 until 2020. He is a member of the Alabama Engineering Hall of Fame (2022), the TMC Advisory Board of directors and the TMC Venture Fund Advisory Board of Directors. He has also been a member of the International District Energy Association (IDEA) since 1983 and is the recipient of the Norman R. Taylor Person of the Year Award (2015). He holds a bachelor’s degree in mechanical engineering from Auburn University and a master’s degree in business administration from the Kellogg Graduate School of Management at Northwestern University. He is a licensed professional engineer and is a frequent presenter and publisher on emerging issues in the energy field.