JMSB John Marshall Bancorp, Inc.

NASDAQ
$23.09

John Marshall Bancorp, Inc. (JMSB) Institutional Ownership

What the institutions did with JMSB last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
99
filed both this quarter and last
Managers holding
94
+17 on the quarter
Buyers
60
22 opened new
Sellers
20
5 sold out entirely
Buyer share
75.0%
of managers who traded it
Breadth
+50.0
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
T. Rowe Price Investment Management, Inc. 2.0M 28.2%
BlackRock, Inc. 984.4K 14.1%
VANGUARD CAPITAL MANAGEMENT LLC 534.6K 7.7%
EVERMAY WEALTH MANAGEMENT LLC 351.1K 5.0%
TOTH FINANCIAL ADVISORY CORP 336.3K 4.8%
GEODE CAPITAL MANAGEMENT, LLC 316.2K 4.5%
STATE STREET CORP 218.5K 3.1%
BANK OF AMERICA CORP /DE/ 178.1K 2.6%
MAI Capital Management 133.2K 1.9%
BROWN ADVISORY INC 108.3K 1.6%
Elizabeth Park Capital Advisors, Ltd. 105.3K 1.5%
Cresset Asset Management, LLC 104.5K 1.5%
RENAISSANCE TECHNOLOGIES LLC 103.7K 1.5%
NORTHERN TRUST CORP 100.0K 1.4%
MARSHALL WACE, LLP 98.1K 1.4%
ACADIAN ASSET MANAGEMENT LLC 91.9K 1.3%
MACKENZIE FINANCIAL CORP 88.2K 1.3%
VANGUARD PORTFOLIO MANAGEMENT LLC 84.5K 1.2%
VANGUARD FIDUCIARY TRUST CO 82.9K 1.2%
Wealthspire Advisors, LLC 64.3K 0.9%
Meridian Financial Partners LLC 57.6K 0.8%
GOLDMAN SACHS GROUP INC 55.5K 0.8%
CITADEL ADVISORS LLC 46.4K 0.7%
Quantinno Capital Management LP 45.5K 0.7%
AQR CAPITAL MANAGEMENT LLC 42.2K 0.6%

Largest changes

Manager Action Previous Current Change
FJ Capital Management LLC Sold Out 412.3K 0 -412.3K
Rhino Investment Partners, Inc Sold Out 118.6K 0 -118.6K
BlackRock, Inc. Increased 875.4K 984.4K +109.0K
Fourthstone LLC Sold Out 108.2K 0 -108.2K
MACKENZIE FINANCIAL CORP New 0 88.2K +88.2K
RENAISSANCE TECHNOLOGIES LLC Increased 31.6K 103.7K +72.1K
ACADIAN ASSET MANAGEMENT LLC Increased 22.7K 91.9K +69.2K
MARSHALL WACE, LLP Increased 31.5K 98.1K +66.6K
MAI Capital Management Reduced 198.1K 133.2K -64.9K
Selective Wealth Management, Inc. New 0 41.1K +41.1K
TOTH FINANCIAL ADVISORY CORP Reduced 368.6K 336.3K -32.4K
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP New 0 30.7K +30.7K
BANK OF AMERICA CORP /DE/ Reduced 206.7K 178.1K -28.6K
MILLENNIUM MANAGEMENT LLC New 0 27.6K +27.6K
CITADEL ADVISORS LLC Increased 20.4K 46.4K +26.0K
Trexquant Investment LP New 0 24.3K +24.3K
DIMENSIONAL FUND ADVISORS LP New 0 24.2K +24.2K
GOLDMAN SACHS GROUP INC Increased 31.4K 55.5K +24.1K
NewEdge Advisors, LLC New 0 21.1K +21.1K
GEODE CAPITAL MANAGEMENT, LLC Increased 295.3K 316.2K +20.9K
AQR CAPITAL MANAGEMENT LLC Increased 21.8K 42.2K +20.5K
Quantinno Capital Management LP Increased 25.2K 45.5K +20.3K
Man Group plc New 0 16.8K +16.8K
Blue Edge Capital, LLC New 0 15.5K +15.5K
MORGAN STANLEY Increased 21.3K 36.2K +14.9K
RAYMOND JAMES FINANCIAL INC New 0 14.6K +14.6K
XTX Topco Ltd New 0 14.1K +14.1K
SG Americas Securities, LLC New 0 13.9K +13.9K
Lido Advisors, LLC New 0 12.5K +12.5K
VANGUARD PORTFOLIO MANAGEMENT LLC Increased 72.9K 84.5K +11.6K
JANE STREET GROUP, LLC Sold Out 11.0K 0 -11.0K
MERCER GLOBAL ADVISORS INC /ADV New 0 10.7K +10.7K
OCCUDO QUANTITATIVE STRATEGIES LP New 0 10.6K +10.6K
Quadrature Capital Ltd New 0 9.3K +9.3K
Russell Investments Group, Ltd. Increased 1.0K 10.3K +9.2K
WELLS FARGO & COMPANY/MN Increased 7.7K 13.5K +5.8K
CITIGROUP INC Increased 917 6.1K +5.2K
LOS ANGELES CAPITAL MANAGEMENT LLC New 0 4.6K +4.6K
VANGUARD FIDUCIARY TRUST CO Increased 79.5K 82.9K +3.4K
Advisory Services Network, LLC Reduced 24.7K 21.6K -3.2K
VANGUARD CAPITAL MANAGEMENT LLC Reduced 537.4K 534.6K -2.8K
Bank of New York Mellon Corp Increased 31.2K 34.0K +2.7K
GSA CAPITAL PARTNERS LLP Increased 12.7K 15.0K +2.3K
Police & Firemen's Retirement System of New Jersey Increased 2.5K 4.5K +2.0K
OSAIC HOLDINGS, INC. Reduced 10.4K 8.4K -2.0K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Increased 36.6K 38.5K +1.9K
ROYAL BANK OF CANADA Increased 20.8K 22.5K +1.6K
DEUTSCHE BANK AG\ Increased 9.6K 11.0K +1.4K
EVERMAY WEALTH MANAGEMENT LLC Increased 350.0K 351.1K +1.2K
Mariner, LLC Increased 16.7K 17.8K +1.2K
JPMORGAN CHASE & CO Increased 5.1K 6.3K +1.1K
STATE STREET CORP Increased 217.4K 218.5K +1.1K
RHUMBLINE ADVISERS Reduced 16.6K 15.6K -1.0K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Reduced 684 174 -510
Tower Research Capital LLC (TRC) Increased 1.7K 2.3K +508
NORTHERN TRUST CORP Increased 99.5K 100.0K +473
Nuveen, LLC Increased 28.5K 28.9K +420
BARCLAYS PLC Increased 3.4K 3.7K +328
Arax Advisory Partners Increased 10 318 +308
UBS Group AG Reduced 11.0K 10.7K -307

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.