JOHN MARSHALL BANCORP INC (JMSB) Institutional Ownership and Insiders Activity

JOHN MARSHALL BANCORP INC (JMSB) is widely held by institutional investors, with 92 firms reporting positions valued at approximately $150.56M based on SEC Form 13F filings for the quarter ended June 30, 2026.

T. Rowe Price Investment Management, Inc. is the largest disclosed holder, reporting approximately $42.85M in JMSB holdings in its latest filing.

Recent insider activity includes 3 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.