BOK Financial Advisors

Dina Zwerin Boivin is a financial advisor with BOK Financial Securities, Inc. She holds the Series 66 designation and has two years of industry experience. Her prior work includes roles at Pulte Financial Services and Cherry Creek Mortgage. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including individuals, corporations, retirement plans, municipalities, and institutional clients. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, supported by research from its affiliate Strategic Investment Advisors, and maintains a municipal-advisor registration as part of its broader bank-affiliated structure.

Jeremy Johnson is a financial advisor with BOK Financial Securities, Inc. in Tulsa, OK, holding a Series 66 designation and 26 years of industry experience. He has been with BOKF, NA and BOK Financial Securities since 2005. BOK Financial Securities, operating as BOK Financial Advisors, serves individual and high-net-worth investors, corporations, retirement plans, government agencies, municipalities, and institutional clients. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, supported by research from Strategic Investment Advisors, and maintains a municipal-advisor registration alongside its affiliation with a bank holding company.

Ryan Flippo is a financial advisor at BOK Financial Securities, Inc. with 14 years of industry experience. He holds Series 63 and Series 66 licenses and has been with BOK Financial Private Wealth, Inc., Cavanal Hill Investment Management, Inc., BOKF, NA, and BOK Financial Securities, Inc. since 2016 or 2025, depending on the entity. BOK Financial Advisors serves individual, high-net-worth, corporate, and institutional clients, including municipalities and government agencies, providing non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, financial planning, and consulting. The firm is affiliated with a publicly traded bank holding company and sponsors affiliated mutual funds, combining investment advisory, broker-dealer, and municipal advisory services.

Yassire Sanie is a financial advisor with BOK Financial Securities, Inc. in Oklahoma City, holding Series 63 and Series 66 credentials and possessing 12 years of industry experience. His prior roles include positions at Arvest Bank, Arvest Wealth Management, and SunTrust. Outside of his advisory work, he serves as an adjunct professor at Oklahoma City University’s Meinders Business School and Oklahoma City Community College, and he is a tuition coordinator at Mercy School Institute. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including individuals, high-net-worth investors, corporations, retirement plans, government agencies, municipalities, and institutional clients. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, with investment research provided by its affiliate, Strategic Investment Advisors.

Scott Grauer is a financial advisor with BOK Financial Securities, Inc. in Tulsa, OK, holding Series 63 and Series 65 licenses and bringing 39 years of industry experience. He has worked with BOK Financial Securities since 1995 and Cavanal Hill Distributors since 2015. Grauer serves as President and CEO of BOSC Agency, Inc., is Chairman of Cavanal Hill Investment Management, and is a member of the Baker University Board of Trustees. BOK Financial Securities, operating as BOK Financial Advisors, provides non-discretionary, fee-based investment management and financial planning services to a diverse client base including individuals, high-net-worth investors, corporations, municipalities, and institutional clients. The firm’s investment approach incorporates research from its affiliate Strategic Investment Advisors, offering model strategies ranging from income to ESG-focused portfolios.

Jeffrey Tucker is a financial advisor at BOK Financial Securities, Inc. in Stamford, CT, holding Series 63 and Series 66 credentials with 39 years of industry experience. His prior roles include positions at KeyBanc Capital Markets, Credit Suisse Securities, and Merrill. BOK Financial Advisors serves individual, high-net-worth, corporate, and institutional clients, offering non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, alongside financial planning and consulting services.

Mark Kosir is a financial advisor with BOK Financial Securities, Inc. in Tulsa, OK, holding Series 63 and Series 65 licenses and bringing 33 years of industry experience. He has been with BOKF, NA and BOK Financial Securities since 2002. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including individuals, high-net-worth investors, corporations, retirement plans, government agencies, municipalities, and institutional clients. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, supported by research from its affiliate Strategic Investment Advisors, and benefits from its affiliation with a bank holding company and related investment entities.

Jacob Wire is a financial advisor with BOK Financial Securities, Inc. in Tulsa, Oklahoma, holding Series 63 and Series 65 licenses and bringing nine years of industry experience. His career includes roles at Bokf, Na, U.S. Bancorp Investments, Inc., Raymond James & Associates, and Valic Financial Advisors. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including individuals, high-net-worth investors, corporations, retirement plans, government agencies, and municipalities. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, with investment research provided by Strategic Investment Advisors, and maintains municipal-advisor registration alongside bank and affiliated investment entity relationships.

David Mc Clanahan is a financial advisor with BOK Financial Securities, Inc. in Plano, TX. He holds Series 63 and Series 65 licenses and has 29 years of industry experience. His prior experience includes roles at Citigroup, Wells Fargo Advisors, and Bancwest Investment Services. BOK Financial Advisors serves a diverse client base including individuals, high-net-worth clients, corporations, and institutional entities such as municipalities and government agencies. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, combining advisor contact with firm-provided investment research and asset allocation.

Robert Lambright is a financial advisor with BOK Financial Securities, Inc. in Tulsa, OK, holding a Series 66 designation and 22 years of industry experience. He has worked with BOK Financial Private Wealth, Inc., BOKF, NA, and BOK Financial Securities, Inc. since 2011. BOK Financial Advisors serves a diverse client base including individual, high-net-worth, corporate, and institutional clients, providing non-discretionary, fee-based investment management, financial planning, and consulting. The firm operates an advisor-led Guided Portfolio Solutions program that combines research and tailored asset allocation with ongoing portfolio monitoring.

Brad Williams is a financial advisor with BOK Financial Securities, Inc. in Tulsa, OK, holding Series 63 and Series 65 licenses with 25 years of industry experience. He has been with BOK Financial since 1997. BOK Financial Advisors serves a diverse client base including individuals, high-net-worth clients, corporations, municipalities, and government agencies. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, combining advisor-led service with research-driven asset allocation and manager selection.

Jimmy Harmon is a financial advisor with BOK Financial Securities, Inc. in Tulsa, OK, holding Series 63 and Series 66 licenses and bringing 25 years of industry experience. He worked at Equitrust Marketing Serv LLC and Farm Bureau for 17 years before joining BOK Financial Securities in 2024. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including individuals, high-net-worth investors, corporations, retirement plans, government agencies, municipalities, and institutional clients. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, combining quantitative and qualitative research with model strategies that range from income-focused to ESG-oriented approaches.

Sara Fagot is a financial advisor with BOK Financial Securities, Inc. in Plano, TX, holding Series 63 and Series 66 credentials and bringing 24 years of industry experience. Her prior experience includes roles at Wells Fargo Advisors LLC and Wells Fargo Clearing. She took a planned sabbatical from 2020 to 2025 before joining BOK Financial Securities in 2025. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including individuals, high-net-worth investors, corporations, retirement plans, government agencies, municipalities, and institutional clients. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, financial planning, and consulting, with investment research provided by its affiliate Strategic Investment Advisors.

Hal Brown is a financial advisor with BOK Financial Securities, Inc. in Tulsa, OK, holding Series 63 and Series 65 licenses and bringing 29 years of industry experience. He has been with BOKF and its affiliated firm since 2002. Outside of his advisory role, Brown serves as a board member for the Downtown Oklahoma City Partnership, a nonprofit focused on downtown revitalization. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including individuals, corporations, retirement plans, government agencies, and institutions. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, with investment research provided by its affiliate Strategic Investment Advisors.

Silas Hughes is a financial advisor at BOK Financial Securities, Inc. in Tulsa, OK, holding a Series 66 designation with one year of industry experience. His prior roles include positions at Burlington Capital, Forty-Six Venture Capital, Summit Financial Group, and teaching roles at The University of Tulsa, Bennington High School, and Elkhorn Ridge Middle School. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including individuals, high-net-worth investors, corporations, retirement plans, government agencies, municipalities, and institutional clients. The firm offers non-discretionary, fee-based investment management through its Guided Portfolio Solutions program, supported by research from its affiliate Strategic Investment Advisors, and maintains municipal-advisor registration alongside its affiliation with a bank holding company.