mark seaton

Mark Seaton

The chief accounting officer of Reliant Bancorp has told the holding company’s leaders he will step down from his position at the end of the week.

Mark Seaton submitted his notice late last month, a few weeks after executives at South Carolina-based United Community Banks announced they would pay $517 million for the Brentwood-based company founded in 2006. Seaton came aboard nearly a year ago after being controller of CapStar Bank for about six years and, before that, after working as a senior manager at KraftCPAs. In addition to serving as CAO, the 43-year-old was Reliant’s controller.

In a regulatory filing, Reliant officials said Seaton’s planned departure is not the result of any disagreements over the company’s policies or operations.

Preparing to fill his seat is Alison Lee Jefferson, 33, who has been Reliant’s financial reporting manager since June of last year. Before that, she worked at accounting firms Ernst & Young, Horne and Dixon Hughes Goodman as well as at Atlantic Capital Bank. In all, she has a decade of experience in the financial sector.

Shares of Reliant (Ticker: RBNC) were down slightly Friday afternoon to $29.82. They began the year at $18 and change.