$JMSB

$23.16 +$0.27 (1.18%) Close

$JMSB Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 14.1M shares outstanding

Who owns JMSB?

By type of holder

Institutions 49.3% Insiders 11.9% Everyone else 38.8%

Concentration Top 10 holders own 41.4%

T. Rowe Price Investment Management, Inc. 13.9% · BlackRock, Inc. 7.0%

Institutional ownership

49.3%

+0.6 pts vs last qtr

Institutional holders

+15 vs last qtr

Net shares bought

+91.3K

by institutions in Q2 2026

New / sold out

22 / 7

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +109.0K
Mackenzie Financial Corp NEW +88.2K

Biggest sellers in Q2 2026

FJ Capital Management LLC SOLD OUT −412.3K
Rhino Investment Partners, Inc SOLD OUT −118.6K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for John Marshall Bancorp Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2021–FY2025

+2.3%

+0.56% a year

Each share's claim on the business

−2.2%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$2.47M vs $2.81M

over 5 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years83% 1–3 years4% Under 1 year13%

Quarterly turnover

12.1%

of institutional shares changed hands

Top 10 managers, median time held

4 years

Super Investors

Investment managers reporting JMSB on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
TR T. Rowe Price Investment Management, Inc.	2.0M	13.93%	Unchanged	2022	0.0%
Shares held by quarter Peak holding2.7M (Q4'25) Change over 8 quarters+176.9K Share of the company13.930% T. Rowe Price Investment Management, Inc.'s full portfolio →
B BlackRock, Inc.	984.4K	6.98%	+109.0K (+12.5%)	2022	0.0%
Shares held by quarter Peak holding984.4K (Q2'26) Change over 8 quarters+90.1K Share of the company6.980% BlackRock, Inc.'s full portfolio →

T. Rowe Price Investment Management, Inc.

2.0M

% of company

13.93%

Change vs last qtr

Unchanged

Held since

2022

BlackRock, Inc.

984.4K

% of company

6.98%

Change vs last qtr

+109.0K (+12.5%)

Held since

2022

28 more super investors behind a free account

See every manager holding John Marshall Bancorp Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting JMSB on Form N-PORT; together they hold 20.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
TR T. Rowe Price Small-Cap Value Fund, Inc. T. Rowe Price Small-Cap Value Fund, Inc.	$26.3M	1.2M	8.55%	0.25%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$8.27M	379.4K	2.69%	0.00%	June 30, 2026

T. Rowe Price Small-Cap Value Fund, Inc.

Position value

$26.3M

% of company

8.55%

% of the fund

0.25%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$8.27M

% of company

2.69%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding John Marshall Bancorp Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
KJ Kinney Jonathan Craig Insider	615.6K	4.36%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company4.360% Kinney Jonathan Craig's insider activity →
FM Foster Michael T Insider	337.6K	2.39%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company2.390% Foster Michael T's insider activity →

Kinney Jonathan Craig

Insider

615.6K

% of company

4.36%

Change vs last qtr

—

Held since

—

Foster Michael T

Insider

337.6K

% of company

2.39%

Change vs last qtr

—

Held since

—

10 more holders behind a free account

See every insider and 5%+ holder of John Marshall Bancorp Inc.

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