Save your place

Sign in to WhoBought

Please try again later.

MainStreet Bancshares, Inc. (MNSB) institutional ownership

Latest close $23.08 Jul 23, 2026
Market cap$153M 52-week range SectorFinancial Services
Funds holding · Q1 2026
64
reported MNSB position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
36 buyers · 28 sellers

MainStreet Bancshares, Inc. (MNSB) price and institutional activity

Dates

Q1 2026

$0 bought by 36 investors
Banc Funds Co LLCMarshall Wace, LLP +34 more
$0 sold by 28 investors
Fourthstone LLCCresset Asset Management, LLC +26 more
Bought Sold Totals per quarter; hover a bar for the names.

MainStreet Bancshares, Inc. (MNSB) institutional activity · 64

Investor Type Est. change Change Δ Own Date
Fourthstone LLC · Reduced
Change −383K Date Q1 2026
Fourthstone LLC Reduced· Q1 2026 −383K Q1 2026
Cresset Asset Management, LLC · Reduced
Change −261K Date Q1 2026
Cresset Asset Management, LLC Reduced· Q1 2026 −261K Q1 2026
Alliancebernstein L.P. · Reduced
Change −130K Date Q1 2026
Alliancebernstein L.P. Reduced· Q1 2026 −130K Q1 2026
Banc Funds Co LLC · Added
Change +109K Date Q1 2026
Banc Funds Co LLC Added· Q1 2026 +109K Q1 2026
Marshall Wace, LLP · Added
Change +62K Date Q1 2026
Marshall Wace, LLP Added· Q1 2026 +62K Q1 2026
American Century Companies Inc · New
Change +53K Date Q1 2026
American Century Companies Inc New· Q1 2026 +53K Q1 2026
Acadian Asset Management LLC · Added
Change +37K Date Q1 2026
Acadian Asset Management LLC Added· Q1 2026 +37K Q1 2026
Renaissance Technologies LLC Reduced· Q1 2026 −35K −70.6% Q1 2026
Dimensional · Added
Change +28K Date Q1 2026
Dimensional Added· Q1 2026 +28K Q1 2026
State Street · Added
Change +27K Date Q1 2026
State Street Added· Q1 2026 +27K Q1 2026
Squarepoint Ops LLC · Added
Change +16K Date Q1 2026
Squarepoint Ops LLC Added· Q1 2026 +16K Q1 2026
Citadel Advisors LLC Reduced· Q1 2026 −16K −40.1% Q1 2026
Provident Wealth Management, LLC · Exited
Change −11K Δ Own −100.0% Date Q1 2026
Provident Wealth Management, LLC Exited· Q1 2026 −11K −100.0% Q1 2026
Xtx Topco Ltd · New
Change +10K Date Q1 2026
Xtx Topco Ltd New· Q1 2026 +10K Q1 2026
Barclays PLC · Reduced
Change −10K Date Q1 2026
Barclays PLC Reduced· Q1 2026 −10K Q1 2026
Data through Q1 2026 · filed May 21, 2026
15 of 64

Famous investor activity in MainStreet Bancshares, Inc. (MNSB)

MainStreet Bancshares, Inc. (MNSB) 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
Green Darrell · Director Grant (A) $21K
Price $24.69 Qty 851 Owned 36K ΔOwn +2.5% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Green Darrell Director Grant (A) $24.69 851 $21K 36K +2.5% Jul 1, 2026 Jul 2, 2026
Deleon Rafael E. · Director Grant (A) $19K
Price $24.69 Qty 753 Owned 15K ΔOwn +5.2% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Deleon Rafael E. Director Grant (A) $24.69 753 $19K 15K +5.2% Jul 1, 2026 Jul 2, 2026
Hall Wendy Adeler · Director Grant (A) $24K
Price $24.69 Qty 973 Owned 3K ΔOwn +55.5% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Hall Wendy Adeler Director Grant (A) $24.69 973 $24K 3K +55.5% Jul 1, 2026 Jul 2, 2026
Higgins Joan Morgan · Other Grant (A) $24K
Price $24.69 Qty 973 Owned 2K ΔOwn +161.6% Trade date Jul 1, 2026 Filed date Jul 2, 2026
Higgins Joan Morgan Other Grant (A) $24.69 973 $24K 2K +161.6% Jul 1, 2026 Jul 2, 2026
Vari Richard Alexander · CFO Sell −$104K
Price $23.20 Qty −4K Owned 34K Trade date Jun 4, 2026 Filed date Jun 4, 2026
Vari Richard Alexander CFO Sell $23.20 −4K −$104K 34K Jun 4, 2026 Jun 4, 2026
Higgins Joan Morgan · Other Grant (A) $8K
Price $22.48 Qty 356 Owned 602 Trade date Apr 3, 2026 Filed date Apr 17, 2026
Higgins Joan Morgan Other Grant (A) $22.48 356 $8K 602 Apr 3, 2026 Apr 17, 2026
Hall Wendy Adeler · Director Grant (A) $12K
Price $22.48 Qty 534 Owned 2K Trade date Apr 3, 2026 Filed date Apr 17, 2026
Hall Wendy Adeler Director Grant (A) $22.48 534 $12K 2K Apr 3, 2026 Apr 17, 2026
Deleon Rafael E. · Director Grant (A) $24K
Price $22.48 Qty 1K Owned 15K Trade date Apr 3, 2026 Filed date Apr 17, 2026
Deleon Rafael E. Director Grant (A) $22.48 1K $24K 15K Apr 3, 2026 Apr 17, 2026
Green Darrell · Director Grant (A) $8K
Price $22.48 Qty 356 Owned 35K Trade date Apr 3, 2026 Filed date Apr 17, 2026
Green Darrell Director Grant (A) $22.48 356 $8K 35K Apr 3, 2026 Apr 17, 2026
Rust Patsy I. · Director Grant (A) $12K
Price $22.48 Qty 534 Owned 26K Trade date Apr 3, 2026 Filed date Apr 17, 2026
Rust Patsy I. Director Grant (A) $22.48 534 $12K 26K Apr 3, 2026 Apr 17, 2026
Vari Richard Alexander · Officer Tax withholding or exercise payment (F) -$31K
Price $20.36 Qty -2K Owned 31K Trade date Feb 20, 2026 Filed date Feb 24, 2026
Vari Richard Alexander Officer Tax withholding or exercise payment (F) $20.36 -2K -$31K 31K Feb 20, 2026 Feb 24, 2026
Hersiburane Abdulhamid · Officer Tax withholding or exercise payment (F) -$27K
Price $20.36 Qty -1K Owned 34K Trade date Feb 20, 2026 Filed date Feb 24, 2026
Hersiburane Abdulhamid Officer Tax withholding or exercise payment (F) $20.36 -1K -$27K 34K Feb 20, 2026 Feb 24, 2026
Dick Jeff W. · Director, Officer Tax withholding or exercise payment (F) -$71K
Price $20.36 Qty -3K Owned 183K Trade date Feb 20, 2026 Filed date Feb 24, 2026
Dick Jeff W. Director, Officer Tax withholding or exercise payment (F) $20.36 -3K -$71K 183K Feb 20, 2026 Feb 24, 2026
Dick Jeff W. · Director, Officer Grant (A) $533K
Price $22.65 Qty 24K Owned 207K Trade date Feb 20, 2026 Filed date Feb 24, 2026
Dick Jeff W. Director, Officer Grant (A) $22.65 24K $533K 207K Feb 20, 2026 Feb 24, 2026
Youngren Todd · Officer Tax withholding or exercise payment (F) -$17K
Price $20.36 Qty -812 Owned 5K Trade date Feb 20, 2026 Filed date Feb 20, 2026
Youngren Todd Officer Tax withholding or exercise payment (F) $20.36 -812 -$17K 5K Feb 20, 2026 Feb 20, 2026
15 of 35
15 of 35 Sign in to continue to older insider transactions.

MainStreet Bancshares, Inc. (MNSB) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Alliancebernstein L.P. 555K
% of shares outstanding 7.5% Filing date May 18, 2026
Alliancebernstein L.P. 555K 7.5% May 18, 2026
Fourthstone LLC 385K
% of shares outstanding 5.2% Filing date May 15, 2026
Fourthstone LLC 385K 5.2% May 15, 2026
BlackRock Inc. 376K
% of shares outstanding 5.0% Filing date Feb 7, 2024
BlackRock Inc. 376K 5.0% Feb 7, 2024
3 of 3

MainStreet Bancshares, Inc. (MNSB) ownership FAQ

Who owns MNSB?

64 reporting institutions disclosed MNSB 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.