First National Corporation shares rise 5.81% intraday after regulatory approval for Commerce Bancshares, Inc. merger with FineMark Holdings, Inc.

First National Corporation rose 5.81% intraday, with the company's stock price increase potentially influenced by the regulatory approval of Commerce Bancshares, Inc.'s merger with FineMark Holdings, Inc. This merger, which is anticipated to close on January 1, 2026, could have a positive impact on the overall banking sector, including First National Corporation.