Originally from Miami, Oklahoma, Matthew Chesnut serves as the Chickasaw Nation's Under Secretary of Investment Management and Strategic Finance where he helps lead the department of treasury's investment management practice. He also serves as the chairman of the Chickasaw Nation Investment Committee, which oversees many of the Chickasaw Nation's investment portfolios.

Mr. Chesnut earned his Bachelor of Science in business administration in finance from the University of Arkansas and a Master of Business Administration from the Harvard Business School. He is the current chairman of the Oklahoma Humane Society, vice chairman of Chickasaw Community Bank, secretary of the Chickasaw Foundation, and serves on the board of the SSM Health St. Anthony's Foundation. He loves reading Cormac McCarthy novels, Charles Taylor essays, and spending time with his wife and their four dogs and one cat.

Chris Shilling was born and raised in Yukon, Oklahoma. He serves as the Chickasaw Nation's Under Secretary of Technology and Innovation. Mr. Shilling manages the technology support teams, which includes the hospitality, health care and government services industries. He also leads the budgeting and capital planning teams for the department of commerce. Formerly, he was the chief operating officer (COO) at the Stephenson Cancer Center in Oklahoma City, followed by a brief stint at a technology software startup based in Southeast Asia.

Mr. Shilling received a Bachelor of Arts in psychology from the University of Oklahoma and a Master of Business Administration from the Harvard Business School. He is a co-chair of the American Cancer Society Hope Lodge, a free hotel for cancer patients traveling to Oklahoma City for cancer care. He is on the advisory board for several early-stage investment companies and actively mentors those who work at early-stage ventures in the state. Mr. Shilling is the very proud father of two children.
 

Chris Tweedy is originally from Tulsa, Oklahoma, and is a longtime Oklahoma resident. He currently serves as general counsel for Chickasaw Community Bank, the Chickasaw Nation's wholly owned bank. He also engages in private legal practice where he focuses on financial institution law and commercial transactions. In addition to legal practice, Mr. Tweedy has been a founder of several successful technology, health care and real estate businesses over many years.

Mr. Tweedy received his Bachelor of Business Administration and Juris Doctorate degrees from the University of Oklahoma. He is a member of the Oklahoma Bar Association, the Chickasaw Bar Association, and serves as a member of the Oklahoma Real Estate Commission's Contracts Committee. Mr. Tweedy enjoys spending time with his family, traveling and attempting to play the guitar. 

Rachel Wood was raised in Coalgate, Oklahoma. She serves as the Chickasaw Nation's Under Secretary of Treasury Administration and leads the treasury programs and treasury compliance teams. She also leads the Capital Access Division. Established in 2022, the division is responsible for implementing the State Small Business Credit Initiative programs and identifying other opportunities for future development. Ms. Wood was formerly an internal audit manager for the Chickasaw Nation Internal Audit department and worked in the oil and gas industry for more than five years in revenue accounting.

She received a bachelor’s in accounting from East Central University in 2008 and is a certified public accountant and certified fraud examiner. Ms. Wood is a general member of the Chickasaw Foundation and is on the finance and investment committees. She has two children and enjoys the quiet life on family land in southeast Oklahoma.