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Nasdaq · CIK 0001693577

MNSB MainStreet Bancshares, Inc.

Insider trading from SEC Form 4. Last filing 11 d ago. Close $24.63 on Oct 9, 2026, +38% from the 52-week low and -4% from the high.

MainStreet Bancshares, Inc. (MNSB) has 47 SEC Form 4 filings on file from 15 insiders, the latest filed on Oct 2, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.

15 open-market trades have been scored at MNSB. The newest: Thomas J Chmelik (CFO, MainStreet Bancshares Inc) sold $145k of stock on Dec 9, 2025, filed Dec 10, 2025, scored 38 (weak). The largest of the 15 shown: Thomas J Chmelik (CFO, MainStreet Bancshares Inc) sold $470k on Dec 8, 2025, scored 44 (moderate). 2 insiders bought within 14 days of each other around Nov 24, 2025.

MNSB closed at $24.63 on Oct 9, 2026, 38% above its 52-week low and 4% below its 52-week high.

1 Form 144 notice of planned sales is on file, the latest filed Dec 2, 2025.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
15
with a Form 4 at this company

Price and insider trades, last year

MNSBOct 9, 2026 · close 24.63

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at MainStreet Bancshares, Inc., scored.

ScoreInsiderValueHoldingsPrice contextFiled
38WeakThomas J Chmelik
CFO, MainStreet Bancshares Inc
sell
$145k
7,238 shares
-10%+34% from low-12% from high
44ModerateThomas J Chmelik
CFO, MainStreet Bancshares Inc
sell
$470k
23,577 shares
-25%+33% from low-12% from high
34WeakThomas J Chmelik
CFO, MainStreet Bancshares Inc
sell
$194k
9,771 shares
-9%+34% from low-12% from high
27WeakCharles C. Brockett
director
buy
$14k
742 shares
+3%+25% from low-18% from high
37WeakJeff W Dick
Chairman, President and CEO
buy
$2,013
106 shares
+0%+25% from low-18% from high
20WeakJeff W Dick
Chairman, President and CEO
buy
$3,898
176 shares
+0%+46% from low-4% from high
10WeakCharles C. Brockett
director
buy
$2,294
120 shares
+0%+25% from low-6% from high
25WeakJeff W Dick
Chairman, President and CEO
buy
$1,942
118 shares
+0%-
43ModerateAli R Manouchehri
other
buy
$103k
5,000 shares
+279%-
25WeakPatsy I Rust
director
buy
$4,126
200 shares
+1%-
30WeakRussell Echlov
director
buy
$2,923
150 shares
+3%-
35WeakJeff W Dick
Chairman, President and CEO
buy
$1,942
103 shares
+0%-
23WeakCharles C. Brockett
director
buy
$5,643
300 shares
+0%-
32WeakMichael B Baboval
Chief Risk Officer
sell
$53k
2,892 shares
-40%-
18WeakCharles C. Brockett
director
buy
$6,749
370 shares
+0%-

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Dec 2, 2025 Chmelik, Thomas J. (MNSB)
Officer, Director
40,586
0.53% of outstanding
$800kDec 2, 2025none

Transactions

The newest 50 of 59 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Oct 1, 2026Wendy Adeler Hall
director
AGrant or award
Common Stock
+849$24.74$21k3,57611 d ago
Oct 1, 2026Joan Morgan Higgins
other
AGrant or award
Common Stock
+971$24.74$24k2,54611 d ago
Apr 3, 2026Rafael E DeLeon
director
AGrant or award
Common Stock
+1,068$22.48$24k14,548Apr 17, 2026
Apr 3, 2026Joan Morgan Higgins
other
AGrant or award
Common Stock
+356$22.48$8,003602Apr 17, 2026
Apr 3, 2026Darrell Green
director
AGrant or award
Common Stock
+356$22.48$8,00334,705Apr 17, 2026
Apr 3, 2026Wendy Adeler Hall
director
AGrant or award
Common Stock
+534$22.48$12k1,754Apr 17, 2026
Feb 20, 2026Richard Alexander Vari
Chief Financial Officer
FTax withholding
Common Stock
-1,501$20.36$31k31,381Feb 24, 2026
Feb 20, 2026Jeff W Dick
Chairman, President and CEO
FTax withholding
Common Stock
-3,499$20.36$71k183,466Feb 24, 2026
Feb 20, 2026Abdulhamid Hersiburane
President, MainSteet Bank
FTax withholding
Common Stock
-1,314$20.36$27k33,502Feb 24, 2026
Feb 20, 2026Jeff W Dick
Chairman, President and CEO
AGrant or award
Common Stock
+23,511$22.65$533k206,977Feb 24, 2026
Feb 20, 2024Abdulhamid Hersiburane
President, MainSteet Bank
AGrant or award
Common Stock
+8,367$22.65$190k41,869Feb 24, 2026
Feb 20, 2024Richard Alexander Vari
Chief Financial Officer
AGrant or award
Common Stock
+7,155$22.65$162k38,536Feb 24, 2026
Feb 20, 2026Thomas J Chmelik
Senior EVP
FTax withholding
Common Stock
-2,799$20.36$57k60,962Feb 20, 2026
Feb 20, 2026William Freesmeier
SVP, Chief of Staff
FTax withholding
Common Stock
-744$20.36$15k8,668Feb 20, 2026
Feb 20, 2026Todd Youngren
EVP, Director
FTax withholding
MainStreet Bancshares, Inc.
-812$20.36$17k5,041Feb 20, 2026
Feb 20, 2026Michael B Baboval
Chief Risk Officer
FTax withholding
Common Stock
-738$20.36$15k6,441Feb 20, 2026
Jan 30, 2026Todd Youngren
EVP, Director
AGrant or award
MainStreet Bancshares, Inc.
+1,986$20.42$41k7,853Feb 2, 2026
Jan 30, 2026Michael B Baboval
Chief Risk Officer
AGrant or award
Common Stock
+2,058$20.42$42k7,179Feb 2, 2026
Jan 9, 2026Richard Alexander Vari
Chief Financial Officer
AGrant or award
Common Stock
+10,000$20.36$204k32,882Jan 9, 2026
Jan 2, 2026Rafael E DeLeon
director
AGrant or award
Common Stock
+1,179$20.36$24k13,480Jan 2, 2026
Jan 2, 2026Darrell Green
director
AGrant or award
Common Stock
+1,032$20.36$21k34,349Jan 2, 2026
Jan 2, 2026Wendy Adeler Hall
director
AGrant or award
Common Stock
+590$20.36$12k1,220Jan 2, 2026
Jan 2, 2026Ali R Manouchehri
other
AGrant or award
Common Stock
+1,179$20.36$24k8,989Jan 2, 2026
Dec 9, 2025Thomas J Chmelik
CFO, MainStreet Bancshares Inc
SOpen-market sale
Common Stock
-1,786$20.21$36k69,213Dec 10, 2025
Dec 9, 2025Thomas J Chmelik
CFO, MainStreet Bancshares Inc
SOpen-market sale
Common Stock
-5,452$20.05$109k63,761Dec 10, 2025
Dec 8, 2025Thomas J Chmelik
CFO, MainStreet Bancshares Inc
SOpen-market sale
Common Stock
-12,234$20.10$246k82,342Dec 8, 2025
Dec 8, 2025Thomas J Chmelik
CFO, MainStreet Bancshares Inc
SOpen-market sale
Common Stock
-11,343$19.75$224k70,999Dec 8, 2025
Dec 3, 2025Thomas J Chmelik
CFO, MainStreet Bancshares Inc
SOpen-market sale
Common Stock
-8,721$19.86$173k94,576Dec 4, 2025
Dec 3, 2025Thomas J Chmelik
CFO, MainStreet Bancshares Inc
SOpen-market sale
Common Stockindirect: By wife
-1,050$19.50$20k0Dec 4, 2025
Nov 24, 2025Jeff W Dick
Chairman, President and CEO
POpen-market purchase
Common Stock
+106$18.99$2,013194,796Nov 24, 2025
Nov 24, 2025Charles C. Brockett
director
POpen-market purchase
Common Stockindirect: Brockett Family Trust
+400$19.03$7,61226,655Nov 24, 2025
Nov 24, 2025Charles C. Brockett
director
POpen-market purchase
Common Stockindirect: Brockett Family Trust
+200$19.05$3,81026,855Nov 24, 2025
Nov 24, 2025Charles C. Brockett
director
POpen-market purchase
Common Stock
+123$18.95$2,33193,051Nov 24, 2025
Nov 24, 2025Charles C. Brockett
director
POpen-market purchase
Common Stockindirect: By wife
+19$18.95$360891Nov 24, 2025
Oct 1, 2025Darrell Green
director
AGrant or award
Common Stock
+793$20.83$17k33,317Oct 1, 2025
Oct 1, 2025Ali R Manouchehri
other
AGrant or award
Common Stock
+577$20.83$12k7,810Oct 1, 2025
Oct 1, 2025Patsy I Rust
director
AGrant or award
Common Stock
+577$20.83$12k25,596Oct 1, 2025
Sep 8, 2025Jeff W Dick
Chairman, President and CEO
POpen-market purchase
Common Stock
+176$22.15$3,898194,690Sep 8, 2025
Jun 30, 2025Rafael E DeLeon
director
AGrant or award
Common Stock
+238$18.90$4,49812,301Jul 1, 2025
Jun 30, 2025Darrell Green
director
AGrant or award
Common Stock
+1,270$18.90$24k32,524Jul 1, 2025
May 29, 2025Charles C. Brockett
director
POpen-market purchase
Common Stock
+120$19.12$2,29492,928May 29, 2025
Mar 31, 2025Rafael E DeLeon
director
AGrant or award
Common Stock
+1,436$16.72$24k12,063Apr 1, 2025
Mar 31, 2025Darrell Green
director
AGrant or award
Common Stock
+937$16.72$16k31,254Apr 1, 2025
Mar 31, 2025Patsy I Rust
director
AGrant or award
Common Stock
+718$16.72$12k25,019Apr 1, 2025
Mar 3, 2025Michael B Baboval
Chief Risk Officer
AGrant or award
Common Stock
+729$16.80$12k5,121Mar 3, 2025
Mar 3, 2025William Freesmeier
SVP
AGrant or award
Common Stock
+3,930$16.80$66k9,412Mar 3, 2025
Mar 3, 2025Abdulhamid Hersiburane
President, MainSteet Bank
AGrant or award
Common Stock
+5,358$16.80$90k40,174Mar 3, 2025
Feb 21, 2025Jeff W Dick
Chairman, President and CEO
POpen-market purchase
Common Stock
+118$16.46$1,942194,514Feb 24, 2025
Jan 2, 2025Rafael E DeLeon
director
AGrant or award
Common Stock
+1,326$18.10$24k10,627Jan 6, 2025
Dec 12, 2024Ali R Manouchehri
other
POpen-market purchase
Common Stock
+5,000$20.69$103k6,791Dec 12, 2024
50 of 59 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about MNSB

Answered from the filings on this page, as of the latest one.

Are insiders buying MNSB?

No. In the last 90 days no insider at MainStreet Bancshares, Inc. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.

Who was the last insider to trade MNSB on the open market?

Thomas J Chmelik (CFO, MainStreet Bancshares Inc) sold $145k of MNSB on Dec 9, 2025 and filed the Form 4 on Dec 10, 2025. InsiderTell scored 38 (weak).

How many insiders file Form 4 at MainStreet Bancshares, Inc.?

15 people have filed a Form 4 at MainStreet Bancshares, Inc., among them Michael B Baboval (Chief Risk Officer), Charles C. Brockett (director), Thomas J Chmelik (Senior EVP). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.