San Antonio

755 East Mulberry, Suite 400, San Antonio, TX 78212

(210) 352-2410

Argent Trust Company

San Antonio Office Information

Originally founded in 1997 as The Trust Company, this group became a division of Argent Financial Group in 2013 and began operating as Argent Trust Company in 2018.

Argent’s San Antonio office is home to staff for Argent Trust, Argent Mineral Management, and Argent Fiduciary Consulting Services.

Led by Karen Saunders, the local trust team provides clients with investment management, trust services and wealth transfer and estate planning advice.

Argent Trust Company CEO, Reid Harrell is based in the San Antonio market.

Visit our Services page to learn more about how we can serve you.

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Our Team

Kathy Strzelczyk, CFIRS®

Kathy Strzelczyk, CFIRS®

Vice President & Audit Manager
San Antonio

Kathy has joined the San Antonio office as vice president and audit manager.  Strzelczyk is responsible for implementation, monitoring and supervision of the fiduciary audit program for the trust companies under Argent Financial Group. Before joining Argent,...

Nikhil M. Patel, J.D.

Nikhil M. Patel, J.D.

Senior Trust Officer
San Antonio

Nikhil Patel serves as Senior Trust Officer with Argent Trust Company, where he works closely with individuals, families, and advisors on trust administration, estate planning strategies, and wealth transfer objectives. Prior to joining Argent, Nikhil practiced law in...

Nora Stewart

Nora Stewart

Trust Associate
San Antonio

Nora Stewart is a Trust Associate in Argent Trust Company’s San Antonio office, bringing more than 25 years of experience in financial services. She is known for her thoughtful, detail-oriented approach and strong commitment to client service. Nora joined Argent in...

Reid M. Harrell

Reid M. Harrell

Chief Executive Officer, Argent Trust Company

President of Wealth Management Group
San Antonio

Reid joined Argent Trust and its predecessor firms in 2005. In 2020, he was named Chief Executive Officer of Argent Trust Company (Tennessee) while continuing to serve as Market President for our San Antonio office.  In 2025 he was named President of Argent’s Wealth...

Robert Petitto

Robert Petitto

Portfolio Manager
San Antonio

Robert Petitto serves as a Portfolio Manager for Argent Trust in the San Antonio office. He advises individuals, family offices, institutions, and nonprofit organizations on investment management, trust and estate planning, and overall fiduciary objectives. He brings...

Robert T. Turnbull, J.D.

Robert T. Turnbull, J.D.

Mineral Manager
San Antonio

Robert is primarily responsible for lease negotiations, lease monitoring and ensuring proper and timely revenue payments for mineral owners throughout Texas, focusing on the Austin, San Antonio, Houston and Corpus Christi areas. Robert joined Argent from Frost Bank in...

Samuel Boldrick

Samuel Boldrick

Senior Vice President, Director of Fixed Income
San Antonio

Sam is Director of Fixed Income for Argent Trust. A founding principal and managing director of The Trust Company, which merged into Argent in 2013, he also served as Chief Investment Officer for 15 years. Having been in the investment business since 1983, Sam...

Sebastian Langer

Sebastian Langer

Investment Analyst
San Antonio

Sebastian Langer is an Investment Analyst for Argent Trust Company in the San Antonio market. He joined Argent in 2025 and moved into a full‑time role in 2026, where he supports the Texas investment team with investment research, portfolio implementation, and client...

Sherry Harrison

Sherry Harrison

Assistant Vice President and Trust Administrator
San Antonio

Sherry joined Argent in 2017 as a Wealth Management Associate and was recently promoted to Assistant Vice President and Trust Administrator in the San Antonio and Corpus Christi offices. She works closely with clients in South Texas and administers trust, estate, and...

Tom Stringfellow, CFA®, CFP®, CPA

Tom Stringfellow, CFA®, CFP®, CPA

Chief Investment Strategist
San Antonio

Tom joined Argent Trust Company in 2021 as Chief Investment Strategist for the organization. He brings to the company over 40 years of extensive experience in the investment management and energy industries. Prior to Argent, Tom was at Frost Bank, where he served as...

Kathy Strzelczyk, CFIRS®

Kathy Strzelczyk, CFIRS®

Vice President & Audit Manager
San Antonio

Kathy has joined the San Antonio office as vice president and audit manager.  Strzelczyk is responsible for implementation, monitoring and supervision of the fiduciary audit program for the trust companies under Argent Financial Group. Before joining Argent,...

Nikhil M. Patel, J.D.

Nikhil M. Patel, J.D.

Senior Trust Officer
San Antonio

Nikhil Patel serves as Senior Trust Officer with Argent Trust Company, where he works closely with individuals, families, and advisors on trust administration, estate planning strategies, and wealth transfer objectives. Prior to joining Argent, Nikhil practiced law in...

Nora Stewart

Nora Stewart

Trust Associate
San Antonio

Nora Stewart is a Trust Associate in Argent Trust Company’s San Antonio office, bringing more than 25 years of experience in financial services. She is known for her thoughtful, detail-oriented approach and strong commitment to client service. Nora joined Argent in...

Reid M. Harrell

Reid M. Harrell

Chief Executive Officer, Argent Trust Company

President of Wealth Management Group
San Antonio

Reid joined Argent Trust and its predecessor firms in 2005. In 2020, he was named Chief Executive Officer of Argent Trust Company (Tennessee) while continuing to serve as Market President for our San Antonio office.  In 2025 he was named President of Argent’s Wealth...

Robert Petitto

Robert Petitto

Portfolio Manager
San Antonio

Robert Petitto serves as a Portfolio Manager for Argent Trust in the San Antonio office. He advises individuals, family offices, institutions, and nonprofit organizations on investment management, trust and estate planning, and overall fiduciary objectives. He brings...

Robert T. Turnbull, J.D.

Robert T. Turnbull, J.D.

Mineral Manager
San Antonio

Robert is primarily responsible for lease negotiations, lease monitoring and ensuring proper and timely revenue payments for mineral owners throughout Texas, focusing on the Austin, San Antonio, Houston and Corpus Christi areas. Robert joined Argent from Frost Bank in...

Samuel Boldrick

Samuel Boldrick

Senior Vice President, Director of Fixed Income
San Antonio

Sam is Director of Fixed Income for Argent Trust. A founding principal and managing director of The Trust Company, which merged into Argent in 2013, he also served as Chief Investment Officer for 15 years. Having been in the investment business since 1983, Sam...

Sebastian Langer

Sebastian Langer

Investment Analyst
San Antonio

Sebastian Langer is an Investment Analyst for Argent Trust Company in the San Antonio market. He joined Argent in 2025 and moved into a full‑time role in 2026, where he supports the Texas investment team with investment research, portfolio implementation, and client...

Sherry Harrison

Sherry Harrison

Assistant Vice President and Trust Administrator
San Antonio

Sherry joined Argent in 2017 as a Wealth Management Associate and was recently promoted to Assistant Vice President and Trust Administrator in the San Antonio and Corpus Christi offices. She works closely with clients in South Texas and administers trust, estate, and...

Tom Stringfellow, CFA®, CFP®, CPA

Tom Stringfellow, CFA®, CFP®, CPA

Chief Investment Strategist
San Antonio

Tom joined Argent Trust Company in 2021 as Chief Investment Strategist for the organization. He brings to the company over 40 years of extensive experience in the investment management and energy industries. Prior to Argent, Tom was at Frost Bank, where he served as...

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