JMSB John Marshall Bancorp, Inc.
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.
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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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.
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.