• John Marshall Bancorp director Oscar Leland Mahan increased his common stock stake by 179 shares at USD 21.03.
• Beneficial ownership rose to 94,981 shares following the purchase.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. John Marshall Bancorp Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001898828-26-000002), on June 05, 2026, and is solely responsible for the information contained therein.