John Marshall Bancorp, Inc. (JMSB) Insider Ownership

Based on data from the past 90 days ending January 21, 2026, John Marshall Bancorp's three largest insider shareholders are Director Jonathan Craig Kinney (605.27K shares), Director Michael T Foster (337.57K shares), Director Ronald J Gordon (151.37K shares).

• John Marshall Bancorp's (JMSB) equity distribution shows institutional investors maintaining majority control with 47.10% ownership, management insiders owning a 11.70% stake and while other market participants hold 41.20%.
• At January 21, 2026, insider ownership concentration at John Marshall Bancorp equals 11.70% of the company's equity base, encompassing roughly 1.66Mn shares from 14.22Mn total outstanding.
• During the 90-day period through January 21, 2026, John Marshall Bancorp experienced a 1.15% increased in insider ownership, with total insider shares growing from 1.65Mn to 1.66Mn.
• As of January 21, 2026, Chief Executive Officer Christopher W Bergstrom emerged as John Marshall Bancorp's top insider buyer over the preceding 90 days, securing 9.50K shares.
• As of January 21, 2026, Chief Banking Officer Andrew Peden recorded the highest insider sale volume at John Marshall Bancorp, offloading 194 shares during the preceding 90-day window.