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John Marshall Bancorp, Inc. (JMSB) institutional ownership

Latest close $21.93 Jul 21, 2026
Market cap$263M 52-week range SectorFinancial Services
Funds holding · Q1 2026
63
reported JMSB position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
38 buyers · 25 sellers

John Marshall Bancorp, Inc. (JMSB) price and institutional activity

Dates

Q1 2026

$0 bought by 38 investors
Wealthspire Advisors, LLCMarshall Wace, LLP +36 more
$0 sold by 25 investors
Bank of America CorpBarclays PLC +23 more
Bought Sold Totals per quarter; hover a bar for the names.

John Marshall Bancorp, Inc. (JMSB) institutional activity · 63

Investor Type Est. change Change Δ Own Date
Wealthspire Advisors, LLC · New
Change +64K Date Q1 2026
Wealthspire Advisors, LLC New· Q1 2026 +64K Q1 2026
Bank of America Corp · Reduced
Change −37K Date Q1 2026
Bank of America Corp Reduced· Q1 2026 −37K Q1 2026
Marshall Wace, LLP · New
Change +31K Date Q1 2026
Marshall Wace, LLP New· Q1 2026 +31K Q1 2026
Rhino Investment Partners, Inc · Added
Change +24K Date Q1 2026
Rhino Investment Partners, Inc Added· Q1 2026 +24K Q1 2026
Acadian Asset Management LLC · Added
Change +19K Date Q1 2026
Acadian Asset Management LLC Added· Q1 2026 +19K Q1 2026
Barclays PLC · Reduced
Change −17K Date Q1 2026
Barclays PLC Reduced· Q1 2026 −17K Q1 2026
Wealth Enhancement Advisory Services, LLC · Exited
Change −17K Δ Own −100.0% Date Q1 2026
Wealth Enhancement Advisory Services, LLC Exited· Q1 2026 −17K −100.0% Q1 2026
Kfa Private Wealth Group, LLC · New
Change +15K Date Q1 2026
Kfa Private Wealth Group, LLC New· Q1 2026 +15K Q1 2026
Millennium Management LLC · Exited
Change −13K Δ Own −100.0% Date Q1 2026
Millennium Management LLC Exited· Q1 2026 −13K −100.0% Q1 2026
Citadel Advisors LLC Reduced· Q1 2026 −11K −34.8% Q1 2026
Quantinno Capital Management LP · Added
Change +9K Date Q1 2026
Quantinno Capital Management LP Added· Q1 2026 +9K Q1 2026
Goldman Sachs Group Inc · Added
Change +9K Date Q1 2026
Goldman Sachs Group Inc Added· Q1 2026 +9K Q1 2026
Wells Fargo & Company · Reduced
Change −9K Date Q1 2026
Wells Fargo & Company Reduced· Q1 2026 −9K Q1 2026
Toth Financial Advisory Corp · Reduced
Change −6K Date Q1 2026
Toth Financial Advisory Corp Reduced· Q1 2026 −6K Q1 2026
Renaissance Technologies LLC Added· Q1 2026 +6K +22.0% Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 63

Famous investor activity in John Marshall Bancorp, Inc. (JMSB)

John Marshall Bancorp, Inc. (JMSB) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Bergstrom Christopher W. · Director 2 operations 0
Owned 33K Trade date Jun 17, 2026 Filed date Jun 26, 2026
Bergstrom Christopher W. Director 2 operations 0 33K Jun 17, 2026 Jun 26, 2026
Mahan Oscar Leland · Director Buy +$4K
Price $21.03 Qty +179 Owned 95K Trade date Jun 3, 2026 Filed date Jun 5, 2026
Mahan Oscar Leland Director Buy $21.03 +179 +$4K 95K Jun 3, 2026 Jun 5, 2026
Kinney Jonathan Craig · Director 2 operations +$48K
Price $21.03 Qty +2K Owned 279K Trade date Jun 3, 2026 Filed date Jun 5, 2026
Kinney Jonathan Craig Director 2 operations $21.03 +2K +$48K 279K Jun 3, 2026 Jun 5, 2026
Bell Kelly Jo · Officer Tax withholding or exercise payment (F) -$790
Price $21.36 Qty -37 Owned 1K Trade date Dec 19, 2025 Filed date Dec 22, 2025
Bell Kelly Jo Officer Tax withholding or exercise payment (F) $21.36 -37 -$790 1K Dec 19, 2025 Dec 22, 2025
Bell Kelly Jo · Officer Tax withholding or exercise payment (F) -$598
Price $21.37 Qty -28 Owned 1K Trade date Dec 17, 2025 Filed date Dec 18, 2025
Bell Kelly Jo Officer Tax withholding or exercise payment (F) $21.37 -28 -$598 1K Dec 17, 2025 Dec 18, 2025
Peden Andrew · Officer Tax withholding or exercise payment (F) -$4K
Price $21.37 Qty -194 Owned 27K Trade date Dec 17, 2025 Filed date Dec 18, 2025
Peden Andrew Officer Tax withholding or exercise payment (F) $21.37 -194 -$4K 27K Dec 17, 2025 Dec 18, 2025
Foster Michael T. · Director Grant (A) 2K
Owned 338K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Foster Michael T. Director Grant (A) 2K 338K Dec 16, 2025 Dec 18, 2025
Kinney Jonathan Craig · Director Grant (A) 2K
Owned 328K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Kinney Jonathan Craig Director Grant (A) 2K 328K Dec 16, 2025 Dec 18, 2025
Mahan Oscar Leland · Director Grant (A) 2K
Owned 95K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Mahan Oscar Leland Director Grant (A) 2K 95K Dec 16, 2025 Dec 18, 2025
Garg Subhash · Director Grant (A) 2K
Owned 44K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Garg Subhash Director Grant (A) 2K 44K Dec 16, 2025 Dec 18, 2025
Garcia Michael A. · Director Grant (A) 2K
Owned 36K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Garcia Michael A. Director Grant (A) 2K 36K Dec 16, 2025 Dec 18, 2025
Allin Philip W. · Director Grant (A) 2K
Owned 30K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Allin Philip W. Director Grant (A) 2K 30K Dec 16, 2025 Dec 18, 2025
Chase Philip · Director Grant (A) 2K
Owned 32K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Chase Philip Director Grant (A) 2K 32K Dec 16, 2025 Dec 18, 2025
Peden Andrew · Officer Grant (A) 2K
Owned 27K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Peden Andrew Officer Grant (A) 2K 27K Dec 16, 2025 Dec 18, 2025
Carstater Kent · Officer Grant (A) 3K
Owned 56K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Carstater Kent Officer Grant (A) 3K 56K Dec 16, 2025 Dec 18, 2025
15 of 26
15 of 26 Sign in to continue to older insider transactions.

John Marshall Bancorp, Inc. (JMSB) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
T. Rowe Price Investment Management, Inc. 1.9M
% of shares outstanding 13.7% Filing date Feb 14, 2025
T. Rowe Price Investment Management, Inc. 1.9M 13.7% Feb 14, 2025
BlackRock Inc. 880K
% of shares outstanding 6.2% Filing date Jan 29, 2024
BlackRock Inc. 880K 6.2% Jan 29, 2024
2 of 2

John Marshall Bancorp, Inc. (JMSB) ownership FAQ

Who owns JMSB?

63 reporting institutions disclosed JMSB position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.