John Marshall Bancorp, Inc. (JMSB) — Institutional Holders, Q2 2026

96 institutional investment managers reported a JMSB position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $152.6M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

JMSB in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

23

Added to

38

Trimmed

15

Sold out

5

Biggest buyers

  1. BlackRockAdded · +109,048 sh+$2.4M
  2. MACKENZIE FINANCIALNew · +88,203 sh+$1.9M
  3. RENAISSANCE TECHNOLOGIESAdded · +72,100 sh+$1.6M
  4. ACADIAN ASSET MANAGEMENTAdded · +69,193 sh+$1.5M
  5. MARSHALL WACE, LLPAdded · +66,618 sh+$1.5M

Biggest sellers

  1. FJ Capital ManagementSold out · -412,273 sh-$9.0M
  2. rhino investment partnersSold out · -118,580 sh-$2.6M
  3. FourthstoneSold out · -108,178 sh-$2.4M
  4. MAI Capital ManagementTrimmed · -64,924 sh-$1.4M
  5. TOTH FINANCIAL ADVISORYTrimmed · -32,368 sh-$705.6K

JMSB 13F holders ranked 1–96 of 96

Institutional investors reporting a position in John Marshall Bancorp, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
InstitutionValueQoQ
T. Rowe Price Investment Management#1 · 1,965,531 sh$42.8M0.0%
BlackRock#2 · 984,411 sh$21.5M+12.5%
VANGUARD CAPITAL MANAGEMENT#3 · 534,570 sh$11.7M-0.5%
EVERMAY WEALTH MANAGEMENT#4 · 351,149 sh$7.7M+0.3%
TOTH FINANCIAL ADVISORY#5 · 336,253 sh$7.3M-8.8%
GEODE CAPITAL MANAGEMENT#6 · 316,184 sh$6.9M+7.1%
STATE STREET#7 · 218,522 sh$4.8M+0.5%
BANK OF AMERICA#8 · 178,112 sh$3.9M-13.8%
MAI Capital Management#9 · 133,192 sh$2.9M-32.8%
BROWN ADVISORY#10 · 108,342 sh$2.4M0.0%
Elizabeth Park Capital Advisors, Ltd.#11 · 105,339 sh$2.3M0.0%
Cresset Asset Management#12 · 104,494 sh$2.3M0.0%
RENAISSANCE TECHNOLOGIES#13 · 103,700 sh$2.3M+228.2%
NORTHERN#14 · 99,995 sh$2.2M+0.5%
MARSHALL WACE, LLP#15 · 98,090 sh$2.1M+211.7%
ACADIAN ASSET MANAGEMENT#16 · 91,906 sh$2.0M+304.6%
MACKENZIE FINANCIAL#17 · 88,203 sh$1.9MNew
VANGUARD PORTFOLIO MANAGEMENT#18 · 84,517 sh$1.8M+16.0%
VANGUARD FIDUCIARY#19 · 82,862 sh$1.8M+4.2%
Wealthspire Advisors#20 · 64,333 sh$1.4M+0.3%
Meridian Financial Partners#21 · 57,619 sh$1.3M0.0%
GOLDMAN SACHS GROUP#22 · 55,470 sh$1.2M+76.6%
CITADEL ADVISORS#23 · 46,416 sh$1.0M+127.7%
Quantinno Capital Management#24 · 45,500 sh$991.9K+80.2%
AQR CAPITAL MANAGEMENT#25 · 42,222 sh$920.4K+94.0%
Selective Wealth Management#26 · 41,103 sh$911.7KNew
CHARLES SCHWAB INVESTMENT MANAGEMENT#27 · 38,463 sh$838.5K+5.1%
Citadel Investment Advisory#28 · 37,200 sh$811.0K0.0%
MORGAN STANLEY#29 · 36,244 sh$790.1K+70.2%
Bank of New York Mellon#30 · 33,954 sh$740.2K+8.8%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#31 · 30,689 sh$669.0KNew
Nuveen#32 · 28,908 sh$630.2K+1.5%
MILLENNIUM MANAGEMENT#33 · 27,586 sh$601.4KNew
Trexquant Investment#34 · 24,310 sh$530.0KNew
DIMENSIONAL FUND ADVISORS#35 · 24,221 sh$528.1KNew
ROYAL BANK OF CANADA#36 · 22,461 sh$490.0K+7.8%
Advisory Services Network#37 · 21,550 sh$469.8K-12.8%
NewEdge Advisors#38 · 21,086 sh$459.7KNew
Snowden Capital Advisors#39 · 21,016 sh$458.1K0.0%
Mariner#40 · 17,836 sh$388.8K+7.0%
Man Group plc#41 · 16,796 sh$366.2KNew
RHUMBLINE ADVISERS#42 · 15,590 sh$339.9K-6.3%
Blue Edge Capital#43 · 15,500 sh$337.9KNew
GSA CAPITAL PARTNERS LLP#44 · 14,985 sh$327.0K+17.9%
KFA Private Wealth Group#45 · 14,865 sh$324.1K0.0%
RAYMOND JAMES FINANCIAL#46 · 14,631 sh$319.0KNew
XTX Topco Ltd#47 · 14,077 sh$306.9KNew
SG Americas Securities#48 · 13,898 sh$303.0KNew
WELLS FARGO & COMPANY#49 · 13,505 sh$294.4K+74.9%
Lido Advisors#50 · 12,505 sh$272.6KNew
DEUTSCHE BANK AG\#51 · 11,005 sh$239.9K+14.8%
UBS Group AG#52 · 10,735 sh$234.0K-2.8%
MERCER GLOBAL ADVISORS#53 · 10,674 sh$232.7KNew
OCCUDO QUANTITATIVE STRATEGIES#54 · 10,624 sh$231.6KNew
Russell Investments Group, Ltd.#55 · 10,282 sh$224.3K+882.0%
Quadrature Capital Ltd#56 · 9,274 sh$202.2KNew
OSAIC#57 · 8,433 sh$183.8K-19.0%
MetLife Investment Management#58 · 7,245 sh$157.9K0.0%
JPMORGAN CHASE#59 · 6,288 sh$137.5K+22.2%
CITIGROUP#60 · 6,130 sh$133.6K+568.5%
MIRAE ASSET GLOBAL ETFS Ltd.#61 · 5,805 sh$126.5K-3.6%
NEW YORK STATE COMMON RETIREMENT FUND#62 · 4,667 sh$101.7K0.0%
LOS ANGELES CAPITAL MANAGEMENT#63 · 4,640 sh$101.2KNew
Police & Firemen's Retirement System of New Jersey#64 · 4,522 sh$98.6K+82.3%
Vanguard Global Advisers#65 · 4,234 sh$92.3K0.0%
BARCLAYS PLC#66 · 3,698 sh$80.6K+9.7%
Union Bankshares#67 · 3,375 sh$73.6K0.0%
Tower Research Capital (TRC)#68 · 2,256 sh$49.2K+29.1%
STRS OHIO#69 · 1,600 sh$34.9K0.0%
Ameritas Investment Partners#70 · 1,260 sh$27.5K0.0%
Legal & General Group Plc#71 · 1,165 sh$25.4K0.0%
Versant Capital Management#72 · 475 sh$10.4K0.0%
NISA INVESTMENT ADVISORS#73 · 331 sh$7.2K0.0%
SRS Capital Advisors#74 · 318 sh$6.9K+3080.0%
Sterling Capital Management#75 · 254 sh$5.5K-39.2%
GAMMA Investing#76 · 246 sh$5.4K0.0%
HARBOR CAPITAL ADVISORS#77 · 134 sh$3.0K0.0%
Quarry#78 · 135 sh$2.9KNew
Optiver Holding B.V.#79 · 126 sh$2.7K0.0%
Integrated Wealth Concepts#80 · 119 sh$2.6KNew
Allworth Financial#81 · 99 sh$2.2K+890.0%
Larson Financial Group#82 · 99 sh$2.2KNew
FMR#83 · 94 sh$2.0K+17.5%
IFP Advisors#84 · 44 sh$959.00+1000.0%
Essential Partners#85 · 42 sh$916.00+223.1%
EverSource Wealth Advisors#86 · 22 sh$480.00-98.4%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#87 · 19 sh$414.000.0%
ROTHSCHILD INVESTMENT#88 · 13 sh$283.00+550.0%
Farther Finance Advisors#89 · 9 sh$196.00New
Basecamp Wealth Advisors#90 · 8 sh$174.00+60.0%
True Wealth Design#91 · 6 sh$131.00+500.0%
SJS Investment Consulting#92 · 1 sh$22.00New
Wealth Enhancement Services#93 · 1 sh$22.00New
Keating Financial Advisory Services#94 · 1 sh$22.000.0%
Covestor Ltd#95 · 3 sh$0.00-25.0%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM#96 · 174 sh—-74.6%

Funds that sold out of JMSB in Q2 2026 (5)

Held JMSB at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held JMSB in Q1 2026 and reported no position in Q2 2026.
InstitutionValue in Q1 2026
FJ Capital Management412,273 sh$8.4M
rhino investment partners118,580 sh$2.4M
Fourthstone108,178 sh$2.2M
JANE STREET GROUP10,986 sh$222.8K
Root Financial Partners6 sh$122.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.