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John Marshall Bancorp, Inc.

JMSB
Exchange
Nasdaq
Industry
State Commercial Banks
SEC CIK
0001710482

In the last 90 days, John Marshall Bancorp, Inc. insiders filed 2 open-market purchases and 0 sales; 95 institutions reported holding it in 13F filings for Q2 2026, worth $152.6M in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in John Marshall Bancorp, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
80
+7 vs. Q4 2025
Shares held
6.91M
+771.8K (+12.6%) vs. Q4 2025
Total value
$140.1M
+$17.4M (+14.2%) vs. Q4 2025
New holders
11
31 more added
Sold out
4
22 more reduced

1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting JMSB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2026: 80 institutions
Q1 2021: 2 institutionsQ2 2021: 2 institutionsQ3 2021: 2 institutionsQ4 2021: 1 institutionQ1 2022: 3 institutionsQ2 2022: 49 institutionsQ3 2022: 49 institutionsQ4 2022: 54 institutionsQ1 2023: 54 institutionsQ2 2023: 52 institutionsQ3 2023: 51 institutionsQ4 2023: 52 institutionsQ1 2024: 53 institutionsQ2 2024: 53 institutionsQ3 2024: 55 institutionsQ4 2024: 55 institutionsQ1 2025: 55 institutionsQ2 2025: 63 institutionsQ3 2025: 69 institutionsQ4 2025: 74 institutionsQ1 2026: 80 institutionsQ2 2026: 95 institutions
Value heldQ1 2026: $140.1M
Q1 2021: $834.4KQ2 2021: $850.8KQ3 2021: $1.24MQ4 2021: $989.6KQ1 2022: $2.38MQ2 2022: $111.4MQ3 2022: $123.4MQ4 2022: $146.0MQ1 2023: $108.7MQ2 2023: $106.8MQ3 2023: $94.9MQ4 2023: $125.2MQ1 2024: $101.9MQ2 2024: $100.6MQ3 2024: $116.0MQ4 2024: $130.0MQ1 2025: $107.5MQ2 2025: $123.7MQ3 2025: $133.5MQ4 2025: $136.6MQ1 2026: $140.1MQ2 2026: $152.6M
Institutions holding JMSB and their total value by quarter
QuarterHoldersValue
Q2 202695$152.6M
Q1 202680$140.1M
Q4 202574$136.6M
Q3 202569$133.5M
Q2 202563$123.7M
Q1 202555$107.5M
Q4 202455$130.0M
Q3 202455$116.0M
Q2 202453$100.6M
Q1 202453$101.9M
Q4 202352$125.2M
Q3 202351$94.9M
Q2 202352$106.8M
Q1 202354$108.7M
Q4 202254$146.0M
Q3 202249$123.4M
Q2 202249$111.4M
Q1 20223$2.38M
Q4 20211$989.6K
Q3 20212$1.24M
Q2 20212$850.8K
Q1 20212$834.4K

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding John Marshall Bancorp, Inc.; share changes are against Q4 2025.

Institutions holding JMSB in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Covestor Ltd4$00.00%−85−95.5%Reduced
Sunbelt Securities, Inc.1$200.00%00.0%Unchanged
Keating Financial Advisory Services, Inc.1$200.00%+1New
True Wealth Design, LLC1$210.00%00.0%Unchanged
Rothschild Investment LLC2$410.00%+1+100.0%Added
IFP Advisors, Inc4$810.00%−3−42.9%Reduced
Basecamp Wealth Advisors LLC5$1010.00%+5New
Root Financial Partners, LLC6$1220.00%+6New
SRS Capital Advisors, Inc.10$2030.00%−37−78.7%Reduced
Allworth Financial LP10$2030.00%+7+233.3%Added
Essential Partners LLC13$2640.00%−17−56.7%Reduced
UBS Asset Management Americas Inc19$3850.00%+19New
FMR LLC80$1.62K0.00%+14+21.2%Added
EverSource Wealth Advisors, LLC91$1.84K0.00%−1−1.1%Reduced
Optiver Holding B.V.126$2.56K0.00%−72−36.4%Reduced
Harbor Capital Advisors, Inc.134$3.00K0.00%+13+10.7%Added
GAMMA Investing LLC246$4.99K0.00%+11+4.7%Added
Nisa Investment Advisors, LLC331$6.71K0.00%00.0%Unchanged
CWM, LLC397$8.05K0.00%+49+14.1%Added
Sterling Capital Management LLC418$8.48K0.00%−311−42.7%Reduced
Versant Capital Management, Inc475$9.63K0.00%+43+10.0%Added
California State Teachers Retirement System684$13.9K0.00%−91−11.7%Reduced
Citigroup Inc917$18.6K0.00%+619+207.7%Added
Russell Investments Group, Ltd.1,047$21.2K0.00%00.0%Unchanged
Legal & General Group Plc1,165$23.6K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.1,260$25.6K0.00%00.0%Unchanged
STRS Ohio1,600$32.4K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,748$35.4K0.00%+1,205+221.9%Added
Police & Firemen's Retirement System of New Jersey2,480$50.3K0.00%00.0%Unchanged
Barclays PLC3,370$68.3K0.00%−16,667−83.2%Reduced
Atlantic Union Bankshares Corp3,375$68.4K0.00%00.0%Unchanged
Vanguard Global Advisers, LLC4,234$85.9K0.00%+4,234New
New York State Common Retirement Fund4,667$94.6K0.00%00.0%Unchanged
JPMorgan Chase & Co5,145$105.1K0.00%−2,808−35.3%Reduced
Mirae Asset Global ETFs Holdings Ltd.6,020$122.1K0.00%+136+2.3%Added
MetLife Investment Management7,245$146.9K0.00%00.0%Unchanged
Wells Fargo & Company7,720$156.6K0.00%−8,591−52.7%Reduced
Deutsche Bank AG9,589$194.5K0.00%+2,535+35.9%Added
Advisor Group Holdings, Inc.10,411$211.1K0.00%00.0%Unchanged
Jane Street Group, LLC10,986$222.8K0.00%−1,904−14.8%Reduced
UBS Group AG11,042$223.9K0.00%+827+8.1%Added
Gsa Capital Partners LLP12,706$258.0K0.02%+796+6.7%Added
KFA Private Wealth Group, LLC14,865$301.5K0.07%+14,865New
Rhumbline Advisers16,632$337.3K0.00%−211−1.3%Reduced
Mariner, LLC16,672$338.1K0.00%+104+0.6%Added
Citadel Advisors LLC20,385$413.4K0.00%−10,875−34.8%Reduced
Royal Bank of Canada20,843$423.0K0.00%−676−3.1%Reduced
Snowden Capital Advisors LLC21,017$426.2K0.01%00.0%Unchanged
Morgan Stanley21,299$431.9K0.00%+1,146+5.7%Added
AQR Capital Management LLC21,760$441.3K0.00%+1,047+5.1%Added
Acadian Asset Management LLC22,713$459.0K0.00%+18,996+511.1%Added
Advisory Services Network, LLC24,719$501.3K0.01%+369+1.5%Added
Quantinno Capital Management LP25,245$512.0K0.00%+9,025+55.6%Added
Nuveen, LLC28,488$577.7K0.00%+184+0.7%Added
Bank of New York Mellon Corp31,207$632.9K0.00%−1,251−3.9%Reduced
Goldman Sachs Group Inc31,402$636.8K0.00%+8,653+38.0%Added
Marshall Wace, LLP31,472$638.3K0.00%+31,472New
Renaissance Technologies LLC31,600$640.8K0.00%+5,700+22.0%Added
Charles Schwab Investment Management Inc36,597$742.2K0.00%+1,940+5.6%Added
Citadel Investment Advisory, Inc.37,200$754.0K0.36%−1,000−2.6%Reduced
Meridian Financial Partners LLC57,619$1.18M0.45%00.0%Unchanged
Wealthspire Advisors, LLC64,141$1.30M0.01%+64,141New
Vanguard Portfolio Management LLC72,885$1.48M0.00%+72,885New
Vanguard Fiduciary Trust Co79,508$1.61M0.00%+79,508New
Northern Trust Corp99,522$2.02M0.00%+3,572+3.7%Added
Cresset Asset Management, LLC104,495$2.12M0.01%+1,545+1.5%Added
Elizabeth Park Capital Advisors, Ltd.105,339$2.14M1.64%00.0%Unchanged
Fourthstone LLC108,178$2.19M0.37%−3,696−3.3%Reduced
Brown Advisory Inc108,342$2.20M0.00%00.0%Unchanged
rhino investment partners, Inc118,580$2.40M0.67%+23,740+25.0%Added
MAI Capital Management198,116$4.02M0.02%+20.0%Added
Bank of America Corp206,711$4.19M0.00%−37,394−15.3%Reduced
State Street Corp217,398$4.41M0.00%+4,197+2.0%Added
Geode Capital Management, LLC295,304$5.99M0.00%−520.0%Reduced
Evermay Wealth Management LLC349,969$7.10M0.79%+1,545+0.4%Added
Toth Financial Advisory Corp368,621$7.48M0.82%−5,858−1.6%Reduced
FJ Capital Management LLC412,273$8.36M0.94%−672−0.2%Reduced
Vanguard Capital Management LLC537,376$10.9M0.00%+537,376New
BlackRock, Inc.875,363$17.8M0.00%+3,733+0.4%Added
T. Rowe Price Investment Management, Inc.1,965,531$39.9M0.03%+2,859+0.1%Added
Wealth Enhancement Advisory Services, LLC0$00.00%−16,529−100.0%Sold out
Millennium Management LLC0$00.00%−13,117−100.0%Sold out
Hingham Institution for Savings0$00.00%−5,000−100.0%Sold out
Amalgamated Bank0$00.00%−397−100.0%Sold out
Vanguard Group Inc––––Not filed