Company: SFNC
Filing Date: 2025-04-02
Form Type: DEF 14A
Source: 0001174947-25-000476
Chunk: 16

Company: SIMMONS FIRST NATIONAL CORP
Filing Date: 2025-04-02
Form: DEF 14A
Chunk 16
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 Stackhouse graduated summa cum laude from Drake University in 1980 with a B.S. degree. Ms. Stackhouse currently serves on the City of Fort Collins Planning and Zoning Commission, the board of the League of Women Voters of Larimer County, the audit committee of the Colorado State University Foundation, the audit committee of Friendship Bridge, and the Conference of State Bank Supervisors’ State Banking Department Accreditation Review Team. The Board believes that Ms. Stackhouse’s extensive financial regulatory experience, deep knowledge of financial operations and risks, and leadership roles within government organizations provide needed skills and insight to assist in the oversight of legal, regulatory, compliance, and other matters associated with a large financial institution. Russell W. Teubner Mr. Teubner,68, was elected to the Board in 2017. He was the Co -Founderand Chief Executive Officer of HostBridge Technology, LLC, a computer software company, for 20 years. Following the acquisition of HostBridge Technology, LLC by Broadcom, Inc. in 2022, Mr. Teubner now serves as a Distinguished Engineer within Broadcom’s Mainframe Software Division. Mr. Teubner previously served as a Chairman of Southwest Bancorp, Inc., which was acquired by the Company in 2017. The Stillwater, Oklahoma, Chamber of Commerce honored Mr. Teubner as Citizen of the Year in 1992, Small Business Person of the Year in 1991 – 92, and Small Business Exporter of the Year in 1992 – 93. In 1997, Oklahoma State University (OSU) named Mr. Teubner as a recipient of its Distinguished Alumni award. During 1996 and 1997 he served on the Citizen’s Commission on the Future of Oklahoma Higher Education. In 1998, he was inducted into the OSU College of Business Hall of Fame. Currently, he serves on the Board of Advisors of the OSU Innovation Foundation and its commercialization subsidiary, Cowboy Technology. In 2019, the Governor of Oklahoma appointed him to serve on the Board of the Oklahoma Center for the Advancement of Science and Technology (OCAST). In 2022, the Governor of Oklahoma appointed him to serve on the Oklahoma Broadband Governing Board. Mr. Teubner is a past director of the Oklahoma City branch of the Federal Reserve Bank of Kansas City. 11

The Board believes that Mr. Teubner’s experience in the technology industry provides needed skills for assessing the role