What SEC filings does John Marshall Bancorp, Inc. submit to the SEC?

John Marshall Bancorp, Inc. (JMSB) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about JMSB?

A Form 4 for JMSB discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from John Marshall Bancorp, Inc.?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for JMSB?

The 10-K is John Marshall Bancorp, Inc.'s annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all JMSB SEC filings directly on EDGAR?

You can view all historical John Marshall Bancorp, Inc. filings on the SEC EDGAR company page for JMSB. Each filing card on this page links directly to the original SEC document.

How often does John Marshall Bancorp, Inc. file with the SEC?

John Marshall Bancorp, Inc. files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling JMSB shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

JMSB SEC Filing News — John Marshall Bancorp, Inc.

Latest SEC filings for John Marshall Bancorp, Inc. (JMSB) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-08.

John Marshall Bancorp, Inc. operates as the bank holding company for John Marshall Bank that provides banking products and financial services in Arlington, Fairfax, Loudoun, Prince William, Montgomery, District of Columbia. The company offers checking, NOW, money market accounts, and savings accounts; certificates of deposit; and time, reciprocal IntraFi Demand, IntraFi Money Market, and IntraFi CD deposits. It also offers commercial real estate loans, residential and commercial construction and…

Sector: Financial Services Industry: Banks - Regional Market Cap: $321.7M CIK: 1710482

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for JMSB currently lean bullish. Of the 20 displayed SEC filing records, 4 carry bullish classifications versus 0 bearish classifications. These labels summarize filing attributes; they are not recommendations, probabilities, or evidence of future price direction. There were 5 insider transactions (Form 4) in this period.

JMSB Filing Activity Snapshot 2026-01-28 — 2026-09-08

Insider Transactions (Form 4)

4 buys vs 0 sells

Net insider buying in this period — more purchases than sales reported.

Largest Form 144 Filing

$54.0K

Kinney Jonathan Craig (Director) · 2026-08-28

2,357 shares · Form 4

Insider Transactions 5 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 5 filings in this group are Form 4s for John Marshall Bancorp, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 5 insider filings shown, the breakdown is 4 open-market purchase and 1 gift. 4 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market purchase ×4: The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.
Gift ×1: Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Form 4 Open-market purchase Insider Buying 2026-08-28

JMSB insider Chase Philip (Director) bought 133 shares (~$3.1K)

Chase Philip, listed as Director at John Marshall Bancorp, Inc., reported an open-market purchase of 133 JMSB shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`P`	Open-market purchase	133	$22.96	$3.1K

Filing: Form 4 (Insider Transaction) Insider: Chase Philip (Director) Shares: 133 Est. Value: $3.1K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market purchase Insider Buying 2026-08-28

JMSB insider Kinney Jonathan Craig (Director) bought 2,357 shares (~$54.0K)

Kinney Jonathan Craig, listed as Director at John Marshall Bancorp, Inc., reported an open-market purchase of 2,357 JMSB shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`P`	Open-market purchase	1,119	$22.92	$25.6K
`P`	Open-market purchase	1,238	$22.92	$28.4K

Filing: Form 4 (Insider Transaction) Insider: Kinney Jonathan Craig (Director) Shares: 2,357 Est. Value: $54.0K

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-06-26

JMSB insider Form 4 filed for equity award, exercise, or tax withholding

BERGSTROM CHRISTOPHER W (Director, CHIEF EXECUTIVE OFFICER) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	32,720	—	—
`G`	Gift	32,720	—	—

Filing: Form 4 (Insider Transaction) Insider: BERGSTROM CHRISTOPHER W (Director, CHIEF EXECUTIVE OFFICER) Shares: 65,440

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market purchase Insider Buying 2026-06-05

JMSB insider Mahan Oscar Leland (Director) bought 179 shares (~$3.8K)

Mahan Oscar Leland, listed as Director at John Marshall Bancorp, Inc., reported an open-market purchase of 179 JMSB shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`P`	Open-market purchase	179	$21.03	$3.8K

Filing: Form 4 (Insider Transaction) Insider: Mahan Oscar Leland (Director) Shares: 179 Est. Value: $3.8K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market purchase Insider Buying 2026-06-05

JMSB insider Kinney Jonathan Craig (Director) bought 2,300 shares (~$48.4K)

Kinney Jonathan Craig, listed as Director at John Marshall Bancorp, Inc., reported an open-market purchase of 2,300 JMSB shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`P`	Open-market purchase	1,092	$21.03	$23.0K
`P`	Open-market purchase	1,208	$21.03	$25.4K

Filing: Form 4 (Insider Transaction) Insider: Kinney Jonathan Craig (Director) Shares: 2,300 Est. Value: $48.4K

View on SEC EDGAR → Open Filing Document →

Material Events 12 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 12 in this period for John Marshall Bancorp, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-09-08