John Marshall Bancorp JMSB Institutional Ownership

NASDAQ JMSB

$23.19 +0.23 (+1.00%)

At close: Sep 10, 2026 · 4:00 PM EDT

Institutions by Trading Activity

95 Institutions

Increased 61 64.2%

Unchanged 19 20.0%

Reduced 15 15.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

49.62%

▲+1.19 pp QoQ

Shares Held by Institutions

7.00Mn

of 14.11Mn outstanding

▲+12.52% QoQ

Shares Outstanding

14.11Mn

7.11Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+16 vs prior quarter

Net Shares Added (QoQ)

+779.04K

accumulated since last quarter

Value of Holdings

$163.56Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

John Marshall Bancorp, Inc. (NASDAQ:JMSB) has 95 institutional investors that have filed 13F reports for the period ending June 2026.

Their combined ownership stood at 49.6% of outstanding shares in June 2026, up from 48.4% in March 2026.
They increased total shares held in JMSB by 12.52% quarter over quarter, and investors in John Marshall Bancorp increased 58.33% from a year ago.
Among the 95 funds, 61 bought more John Marshall Bancorp shares, 15 sold down, and 19 held their ground.
Altogether, these fund groups held 7.0Mn shares in JMSB by June 2026, up by 779.04K shares quarter on quarter, and up 239.64K shares year over year.
As of June 30, 2026, T. Rowe Price Investment Management, Inc. held the largest stake in John Marshall Bancorp with 1.97Mn shares, accounting for 13.93% of total shares outstanding.
Leading buyers of John Marshall Bancorp shares for the quarter ending June 2026 were BlackRock, Inc. (109.05K), MACKENZIE FINANCIAL CORP (88.2K), RENAISSANCE TECHNOLOGIES LLC (72.1K), ACADIAN ASSET MANAGEMENT LLC (69.19K), MARSHALL WACE, LLP (66.62K).
The largest sales of JMSB for the quarter ending June 2026 came from MAI Capital Management (64.92K), TOTH FINANCIAL ADVISORY CORP (32.37K), Bank Of America Corp /De/ (28.6K), Advisory Services Network, LLC (3.17K), VANGUARD CAPITAL MANAGEMENT LLC (2.81K).
Per Business Quant data, the top 10 holders of John Marshall Bancorp for the quarter ending June 2026 are T. Rowe Price Investment Management, Inc. (1.97Mn), BlackRock, Inc. (984.41K), VANGUARD CAPITAL MANAGEMENT LLC (534.57K), EVERMAY WEALTH MANAGEMENT LLC (351.15K), TOTH FINANCIAL ADVISORY CORP (336.25K), GEODE CAPITAL MANAGEMENT, LLC (316.18K), State Street Corp (218.52K), Bank Of America Corp /De/ (178.11K), MAI Capital Management (133.19K), BROWN ADVISORY INC (108.34K).

Form 13F Holdings

95 Institutional Holders

Report period 30 Jun, 2026

Total shares held 7.00Mn

Of outstanding 49.62%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	T. Rowe Price Investment Management, Inc.	0001897612	1,965,531	13.93%	0	0.00%	$42.85K
2	BlackRock, Inc.	0002012383	984,411	6.98%	▲109,048	+12.46%	$21.46Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	534,570	3.79%	▼2,806	-0.52%	$11.65Mn
4	EVERMAY WEALTH MANAGEMENT LLC	0001066816	351,149	2.49%	▲1,180	+0.34%	$7.66Mn
5	TOTH FINANCIAL ADVISORY CORP	0000866780	336,253	2.38%	▼32,368	-8.78%	$7.33Mn
6	GEODE CAPITAL MANAGEMENT, LLC	0001214717	316,184	2.24%	▲20,880	+7.07%	$6.89Mn
7	State Street Corp	0000093751	218,522	1.55%	▲1,124	+0.52%	$4.76Mn
8	Bank Of America Corp /De/	0000070858	178,112	1.26%	▼28,599	-13.84%	$3.88Mn
9	MAI Capital Management	0001040197	133,192	0.94%	▼64,924	-32.77%	$2.90Mn
10	BROWN ADVISORY INC	0001345929	108,342	0.77%	0	0.00%	$2.36Mn
11	Elizabeth Park Capital Advisors, Ltd.	0001600583	105,339	0.75%	0	0.00%	$2.30Mn
12	Cresset Asset Management, LLC	0001761013	104,494	0.74%	▼1	0.00%	$2.28Mn
13	RENAISSANCE TECHNOLOGIES LLC	0001037389	103,700	0.73%	▲72,100	+228.16%	$2.26Mn
14	Northern Trust Corp	0000073124	99,995	0.71%	▲473	+0.48%	$2.18Mn
15	MARSHALL WACE, LLP	0001318757	98,090	0.70%	▲66,618	+211.67%	$2.14Mn
16	ACADIAN ASSET MANAGEMENT LLC	0000916542	91,906	0.65%	▲69,193	+304.64%	$2.00K
17	MACKENZIE FINANCIAL CORP	0000919859	88,203	0.63%	▲88,203	0.00%	$1.92Mn
18	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	84,517	0.60%	▲11,632	+15.96%	$1.84Mn
19	VANGUARD FIDUCIARY TRUST CO	0000933478	82,862	0.59%	▲3,354	+4.22%	$1.81Mn
20	Wealthspire Advisors, LLC	0001646247	64,333	0.46%	▲192	+0.30%	$1.40Mn

Showing 1 to 20 of 95 holders