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Nasdaq · CIK 0001042729

MBWM MERCANTILE BANK CORP

Insider trading from SEC Form 4. Last filing May 27, 2026. Close $57.78 on Oct 9, 2026, +38% from the 52-week low and -7% from the high.

MERCANTILE BANK CORP (MBWM) has 52 SEC Form 4 filings on file from 18 insiders, the latest filed on May 27, 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.

16 open-market trades have been scored at MBWM. The newest: Michael H Price (director) sold $210k of stock on Nov 13, 2025, filed Nov 17, 2025, scored 37 (weak). The largest of the 16 shown: Robert B Kaminski (director) sold $300k on Nov 25, 2024, scored 34 (weak).

MBWM closed at $57.78 on Oct 9, 2026, 38% above its 52-week low and 7% below its 52-week high.

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
18
with a Form 4 at this company

Price and insider trades, last year

MBWMOct 9, 2026 · close 57.78

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 MERCANTILE BANK CORP, scored.

ScoreInsiderValueHoldingsPrice contextFiled
37WeakMichael H Price
director
sell
$210k
4,577 shares
-28%+20% from low-10% from high
27WeakNelson F Sanchez
director
buy
$44k
1,000 shares
+40%+16% from low-13% from high
26WeakDavid B Ramaker
director
buy
$70k
1,500 shares
+11%+22% from low-8% from high
15WeakShoran R Williams
director
buy
$9,457
200 shares
+4%+24% from low-7% from high
0WeakRobert B Kaminski
director
sell
$11k
250 shares
-0%+13% from low-15% from high
0WeakRobert B Kaminski
director
sell
$11k
250 shares
-0%+8% from low-15% from high
0WeakRobert B Kaminski
director
sell
$12k
250 shares
-0%-
22WeakRobert B Kaminski
director
sell
$50k
1,000 shares
-8%-
22WeakRobert B Kaminski
director
sell
$50k
1,000 shares
-7%-
0WeakRobert B Kaminski
director
sell
$12k
250 shares
-0%-
39WeakRobert B Kaminski
director
sell
$298k
6,000 shares
-30%-
0WeakRobert B Kaminski
director
sell
$11k
250 shares
-0%-
0WeakRobert B Kaminski
director
sell
$12k
250 shares
-0%-
34WeakRobert B Kaminski
director
sell
$300k
5,800 shares
-23%-
32WeakRobert B Kaminski
director
sell
$198k
4,000 shares
-14%-
0WeakRobert B Kaminski
director
sell
$11k
250 shares
-0%-

Transactions

The newest 50 of 72 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
May 22, 2026Michael S. Davenport
director
AGrant or award
Common Stock
+753$0.00$09,594May 27, 2026
May 22, 2026Michelle Larabee Eldridge
director
AGrant or award
Common Stock
+830$0.00$012,670May 27, 2026
Feb 15, 2026Raymond E. Reitsma
President and CEO
AGrant or award
Common Stock
+1,808$0.00$068,310Feb 18, 2026
Feb 15, 2026Charles E Christmas
EVP & CFO
AGrant or award
Common Stock
+1,326$0.00$073,548Feb 18, 2026
Feb 17, 2026Raymond E. Reitsma
President and CEO
FTax withholding
Common Stock
-4,040$54.24$219k64,270Feb 18, 2026
Feb 17, 2026Charles E Christmas
EVP & CFO
FTax withholding
Common Stock
-3,021$54.24$164k70,527Feb 18, 2026
Feb 5, 2026Charles E Christmas
EVP & CFO
AGrant or award
Common Stock
+2,829$0.00$070,808Feb 9, 2026
Dec 19, 2025Tara M Randall
EVP & Chief Experience Officer
FTax withholding
Common Stock
-1,500$49.45$74k13,848Feb 9, 2026
Feb 5, 2026Raymond E. Reitsma
President and CEO
AGrant or award
Common Stock
+7,559$0.00$062,723Feb 9, 2026
Dec 12, 2025Mark S Augustyn
EVP&Chief Comm Banking Officer
GGift
Common Stock
-2,022$0.00$029,648Feb 9, 2026
Dec 19, 2025Brett Hoover
EVP & CHIEF HR OFFICER
FTax withholding
Common Stock
-950$49.45$47k15,688Feb 9, 2026
Dec 19, 2025Scott P Setlock
EVP, COO, & SECRETARY
FTax withholding
Common Stock
-1,187$49.45$59k19,737Feb 9, 2026
Feb 5, 2026Raymond E. Reitsma
President and CEO
AGrant or award
Common Stock
+3,779$0.00$066,502Feb 9, 2026
Dec 19, 2025Mark S Augustyn
EVP&Chief Comm Banking Officer
FTax withholding
Common Stock
-1,461$49.45$72k28,187Feb 9, 2026
Feb 5, 2026Brett Hoover
EVP & CHIEF HR OFFICER
AGrant or award
Common Stock
+1,888$0.00$017,576Feb 9, 2026
Feb 5, 2026Tara M Randall
EVP & Chief Experience Officer
AGrant or award
Common Stock
+1,820$0.00$015,668Feb 9, 2026
Feb 5, 2026Charles E Christmas
EVP & CFO
AGrant or award
Common Stock
+1,414$0.00$072,222Feb 9, 2026
Feb 5, 2026Scott P Setlock
EVP, COO, & SECRETARY
AGrant or award
Common Stock
+2,271$0.00$022,008Feb 9, 2026
Feb 5, 2026Scott P Setlock
EVP, COO, & SECRETARY
AGrant or award
Common Stock
+1,135$0.00$023,143Feb 9, 2026
Feb 5, 2026Brett Hoover
EVP & CHIEF HR OFFICER
AGrant or award
Common Stock
+944$0.00$018,520Feb 9, 2026
Feb 5, 2026Tara M Randall
EVP & Chief Experience Officer
AGrant or award
Common Stock
+910$0.00$016,578Feb 9, 2026
Feb 5, 2026Mark S Augustyn
EVP&Chief Comm Banking Officer
AGrant or award
Common Stock
+2,875$0.00$031,602Feb 9, 2026
Feb 5, 2026Mark S Augustyn
EVP&Chief Comm Banking Officer
AGrant or award
Common Stock
+1,437$0.00$032,499Feb 9, 2026
Jan 6, 2026Steven Schweihofer
director
AGrant or award
Common Stock
+321$0.00$05,603Jan 7, 2026
Dec 31, 2025Steven Schweihofer
director
AGrant or award
Common Stock
+5,282--5,282Jan 5, 2026
Nov 13, 2025Michael H Price
director
SOpen-market sale
Common Stock
-3,160$45.85$145k13,315Nov 17, 2025
Nov 13, 2025Michael H Price
director
SOpen-market sale
Common Stock
-1,417$45.81$65k11,898Nov 17, 2025
Oct 31, 2025Nelson F Sanchez
director
POpen-market purchase
Common Stockindirect: IRA
+1,000$43.50$44k3,502Nov 4, 2025
Aug 18, 2025David B Ramaker
director
POpen-market purchase
Common Stock
+1,500$46.71$70k15,014Aug 19, 2025
Jul 29, 2025Shoran R Williams
director
POpen-market purchase
Common Stock
+200$47.29$9,4575,266Jul 30, 2025
Jul 17, 2025Michelle Larabee Eldridge
director
AGrant or award
Common Stock
+34$0.00$011,840Jul 21, 2025
Jul 17, 2025David B Ramaker
director
AGrant or award
Common Stock
+20$0.00$013,514Jul 21, 2025
Jul 17, 2025Michael H Price
director
AGrant or award
Common Stock
+47$0.00$016,475Jul 21, 2025
Jul 17, 2025Amy L Sparks
director
AGrant or award
Common Stock
+79$0.00$05,463Jul 21, 2025
Jul 17, 2025Michael S. Davenport
director
AGrant or award
Common Stock
+17$0.00$08,685Jul 21, 2025
May 22, 2025Michael S. Davenport
director
AGrant or award
Common Stock
+873$0.00$08,563May 27, 2025
May 22, 2025Michelle Larabee Eldridge
director
AGrant or award
Common Stock
+943$0.00$011,806May 27, 2025
May 22, 2025Joseph D Jones
director
AGrant or award
Common Stock
+849$0.00$05,791May 27, 2025
May 22, 2025Richard D MacDonald
director
AGrant or award
Common Stock
+849$0.00$02,574May 27, 2025
May 22, 2025Michael H Price
director
AGrant or award
Common Stock
+1,244$0.00$016,428May 27, 2025
May 22, 2025David B Ramaker
director
AGrant or award
Common Stock
+926$0.00$013,494May 27, 2025
May 22, 2025Nelson F Sanchez
director
AGrant or award
Common Stock
+849$0.00$03,084May 27, 2025
May 22, 2025Sara A Schmidt
director
AGrant or award
Common Stock
+849$0.00$0969May 27, 2025
May 22, 2025Amy L Sparks
director
AGrant or award
Common Stock
+979$0.00$05,350May 27, 2025
May 22, 2025Shoran R Williams
director
AGrant or award
Common Stock
+849$0.00$04,996May 27, 2025
May 2, 2025Robert B Kaminski
director
SOpen-market sale
Common Stock10b5-1
-250$42.85$11k77,986May 6, 2025
Apr 2, 2025Robert B Kaminski
director
SOpen-market sale
Common Stock10b5-1
-250$43.14$11k78,236Apr 4, 2025
Mar 3, 2025Robert B Kaminski
director
SOpen-market sale
Common Stock10b5-1
-250$48.11$12k78,486Mar 5, 2025
Feb 19, 2025Charles E Christmas
EVP AND CFO
FTax withholding
Common Stock
-3,075$47.87$147k67,979Feb 21, 2025
Feb 19, 2025Robert B Kaminski
director
FTax withholding
Common Stock
-7,993$47.87$383k78,737Feb 21, 2025
50 of 72 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about MBWM

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

Are insiders buying MBWM?

No. In the last 90 days no insider at MERCANTILE BANK CORP 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 MBWM on the open market?

Michael H Price (director) sold $210k of MBWM on Nov 13, 2025 and filed the Form 4 on Nov 17, 2025. InsiderTell scored 37 (weak).

How many insiders file Form 4 at MERCANTILE BANK CORP?

18 people have filed a Form 4 at MERCANTILE BANK CORP, among them Mark S Augustyn (EVP&Chief Comm Banking Officer), Charles E Christmas (EVP & CFO), Michael S. Davenport (director). 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.

MBWM insider trading: MERCANTILE BANK CORP | InsiderTell