John Marshall Bancorp, Inc. (Nasdaq: JMSB), an SEC filer in State Commercial Banks, closed at $22.94, +1.5%, on 2026-08-28, with a market cap of $319M as of 2026-08-27, a trailing P/E of 15.2, a return on equity of 8.3%, a net margin of 33.9% and 3-year sales growth of -4.6%. Institutional ownership, earnings history and filed financials are on the tabs below.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | T. Rowe Price Investment Management, Inc. | 1,965,5312.0M | $40M | 13.83% | TRIM -26% |
| 2 | BlackRock, Inc. | 875,363875,363 | $18M | 6.16% | — |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 537,376537,376 | $11M | 3.78% | NEW† |
| 4 | FJ Capital Management LLC | 412,273412,273 | $8M | 2.90% | — |
| 5 | TOTH FINANCIAL ADVISORY CORP | 368,621368,621 | $7M | 2.59% | — |
| 6 | EVERMAY WEALTH MANAGEMENT LLC | 349,969349,969 | $7M | 2.46% | — |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 295,304295,304 | $6M | 2.08% | — |
| 8 | STATE STREET CORP | 217,398217,398 | $4M | 1.53% | — |
| 9 | BANK OF AMERICA CORP /DE/ | 206,711206,711 | $4M | 1.45% | TRIM -15% |
| 10 | MAI Capital Management | 198,116198,116 | $4M | 1.39% | — |
† NEW this big is usually a rename.
Ranked by each filer’s own reported value, not shares.
1 holder — The filer reported no value for this line, so it carries no dollar figure and is left out of the percentage and value columns.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | +537,376 | $11M | OPEN |
| VANGUARD FIDUCIARY TRUST CO | +79,508 | $2M | OPEN |
| VANGUARD PORTFOLIO MANAGEMENT LLC | +72,885 | $1M | OPEN |
| Wealthspire Advisors, LLC | +64,141 | $1M | OPEN |
| MARSHALL WACE, LLP | +31,472 | $638,252 | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | −696,354 | $14M | TRIM |
| VANGUARD GROUP INC | −692,614 | $14M | CLOSE |
| BANK OF AMERICA CORP /DE/ | −37,394 | $758,350 | TRIM |
| BARCLAYS PLC | −16,667 | $338,007 | TRIM |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | −16,529 | $335,208 | CLOSE |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 1.9M | 2.0M | 2.0M | 2.0M | 2.7M | 2.0M | $40M |
| BlackRock, Inc. | 912K | 899K | 875K | 871K | 872K | 875K | $18M |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 537K | $11M |
| FJ Capital Management LLC | 174K | 320K | 413K | 430K | 413K | 412K | $8M |
| TOTH FINANCIAL ADVISORY CORP | 435K | 417K | 403K | 391K | 374K | 369K | $7M |
| EVERMAY WEALTH MANAGEMENT LLC | 334K | 334K | 334K | 348K | 348K | 350K | $7M |
| GEODE CAPITAL MANAGEMENT, LLC | 284K | 291K | 296K | 294K | 295K | 295K | $6M |
| STATE STREET CORP | 213K | 211K | 212K | 213K | 213K | 217K | $4M |
| BANK OF AMERICA CORP /DE/ | 270K | 263K | 261K | 254K | 244K | 207K | $4M |
| MAI Capital Management | 219K | 223K | 223K | 198K | 198K | 198K | $4M |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Breaks = no 13F that quarter.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
| Holder | % of class | Type | As of | |
|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 13.7% | QII | 2024-12-31 | SEC → |
SEC Schedule 13D/G XML · group aggregate.
