JMSB 424B3: Acquisition
John Marshall Bancorp, Inc.
Filed with the SEC on · accession 0001104659-26-116454
JMSB filed a 424B3 (prospectus (offering)) with the SEC on Oct 16, 2026. John Marshall Bancorp, Inc. (JMSB) entered into a merger agreement with Eagle Financial Services, Inc. (EFSI) whereby EFSI will merge into JMSB in a stock-for-stock transaction. The stock moved +0.5% by the first close after the filing.
Summary of the filing
John Marshall Bancorp, Inc. (JMSB) entered into a merger agreement with Eagle Financial Services, Inc. (EFSI) whereby EFSI will merge into JMSB in a stock-for-stock transaction. EFSI shareholders will receive 2.00 shares of JMSB common stock for each EFSI share, and JMSB expects to issue approximately 10,823,230 shares.
Key details
How JMSB stock reacted
Close before
$22.79
Oct 15, 2026
First close after
+0.48%
$22.90
5 trading days
+3.16%
$23.51
Since filing
+1.32%
$23.09
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Click hereFrequently asked questions
What did JMSB file with the SEC on Oct 16, 2026?
JMSB filed a 424B3 (Acquisition). John Marshall Bancorp, Inc. (JMSB) entered into a merger agreement with Eagle Financial Services, Inc. (EFSI) whereby EFSI will merge into JMSB in a stock-for-stock transaction. EFSI shareholders will receive 2.00 shares of JMSB common stock for each EFSI share, and JMSB expects to issue approximately 10,823,230 shares.
What does a acquisition mean for JMSB stock?
A contract important enough that investors need to know about it — a big customer contract, a loan, a merger agreement or a partnership.
How do I read a 424B3?
The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.
How did JMSB stock react to this filing?
JMSB closed at $22.79 before the filing and $22.90 on Oct 16, 2026 (+0.48%). Five trading days later: $23.51 (+3.16%).
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