Who owns John Marshall Bancorp, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of JMSB from SEC Form 13F filings across 95 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 95 institutions disclosed 7.0M shares of John Marshall Bancorp, Inc. worth $107.2M — about 49.9% of shares outstanding; the largest disclosed holder is T. Rowe Price Investment Management, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
95
13F holders
$107.2M
value, 2026 filers
49.9%
of shares outstanding (7.0M sh)
25
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of JMSB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | T. Rowe Price Investment Management, Inc. | 2.0M | $42,849 | 0.0% | 14% | 0.0% |
| 2 | BlackRock, Inc. | 984,411 | $21.5M | 0.0% | 7% | +12.5% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 534,570 | $11.7M | 0.0% | 3.8% | -0.5% |
| 4 | EVERMAY WEALTH MANAGEMENT LLC | 351,149 | $7.7M | 0.8% | 2.5% | +0.3% |
| 5 | TOTH FINANCIAL ADVISORY CORP | 336,253 | $7.3M | 0.7% | 2.4% | -8.8% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 316,184 | $6.9M | 0.0% | 2.3% | +7.1% |
| 7 | STATE STREET CORP | 218,522 | $4.8M | 0.0% | 1.6% | +0.5% |
| 8 | BANK OF AMERICA CORP /DE/ | 178,112 | $3.9M | 0.0% | 1.3% | -13.8% |
| 9 | MAI Capital Management | 133,192 | $2.9M | 0.0% | 0.9% | -32.8% |
| 10 | BROWN ADVISORY INC | 108,342 | $2.4M | 0.0% | 0.8% | 0.0% |
| 11 | Elizabeth Park Capital Advisors, Ltd. | 105,339 | $2.3M | 1.6% | 0.8% | 0.0% |
| 12 | Cresset Asset Management, LLC | 104,494 | $2.3M | 0.0% | 0.7% | 0.0% |
| 13 | RENAISSANCE TECHNOLOGIES LLC | 103,700 | $2.3M | 0.0% | 0.7% | +228.2% |
| 14 | NORTHERN TRUST CORP | 99,995 | $2.2M | 0.0% | 0.7% | +0.5% |
| 15 | MARSHALL WACE, LLP | 98,090 | $2.1M | 0.0% | 0.7% | +211.7% |
| 16 | ACADIAN ASSET MANAGEMENT LLC | 91,906 | $1,995 | 0.0% | 0.7% | +304.6% |
| 17 | MACKENZIE FINANCIAL CORPNEW | 88,203 | $1.9M | 0.0% | 0.6% | new |
| 18 | VANGUARD PORTFOLIO MANAGEMENT LLC | 84,517 | $1.8M | 0.0% | 0.6% | +16.0% |
| 19 | VANGUARD FIDUCIARY TRUST CO | 82,862 | $1.8M | 0.0% | 0.6% | +4.2% |
| 20 | Wealthspire Advisors, LLC | 64,333 | $1.4M | 0.0% | 0.5% | +0.3% |
| 21 | Meridian Financial Partners LLC | 57,619 | $1.3M | 0.4% | 0.4% | 0.0% |
| 22 | GOLDMAN SACHS GROUP INC | 55,470 | $1.2M | 0.0% | 0.4% | +76.6% |
| 23 | CITADEL ADVISORS LLC | 46,416 | $1.0M | 0.0% | 0.3% | +127.7% |
| 24 | Quantinno Capital Management LP | 45,500 | $991,900 | 0.0% | 0.3% | +80.2% |
| 25 | AQR CAPITAL MANAGEMENT LLC | 42,222 | $920,437 | 0.0% | 0.3% | +94.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.