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.

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.

Donald Ross is a financial advisor at BOK Financial Securities, Inc. in Tulsa, Oklahoma, with 31 years of industry experience. He has been with BOK Financial Securities and its affiliated bank, Bokf, Na, since 1999. Ross holds Series 63 and Series 65 licenses. 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 proprietary research with model strategies ranging from income to ESG-focused approaches.

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 licenses with 39 years of industry experience. His prior work includes roles at Credit Suisse Securities (USA) LLC and KeyBanc Capital Markets. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including 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, with investment research provided by its affiliate Strategic Investment Advisors.

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 Austin, TX, holding Series 63 and Series 65 credentials and bringing 28 years of industry experience. His prior roles include positions at CitiGroup and Wells Fargo Advisors. BOK Financial Securities serves a diverse client base including individuals, high-net-worth investors, corporations, and government entities. 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.

Brad Williams is a financial advisor with BOK Financial Securities, Inc. in Tulsa, OK. He holds Series 63 and Series 65 licenses and has 24 years of industry experience. He has been with BOKF, NA and BOK Financial Securities since 1997. 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 along with financial planning and consulting, supported by investment research from its affiliate Strategic Investment Advisors.

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.

Marshea Lewis is a financial advisor at BOK Financial Securities, Inc. with eight years of industry experience. She holds the Series 66 designation and previously worked at Wells Fargo Clearing and WELLS FARGO Advisors, LLC. Outside of her advisory role, Lewis owns an eCommerce business selling private label products on Amazon. BOK Financial Securities, operating as BOK Financial Advisors, serves a diverse client base including 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, combining quantitative and qualitative research with a variety of model strategies.