Mercantile Bank Corp

MBWM

Exchange: Nasdaq
Industry: State Commercial Banks
SEC CIK: 0001042729

SEC filings (opens in a new tab)

No open-market purchases or sales by Mercantile Bank Corp insiders were filed in the last 90 days; 206 institutions reported holding it in 13F filings for Q2 2026, worth $691.0M in total; no superinvestor holds it.

Q1 2026 vs. Q4 2025

How the institutions holding Mercantile Bank Corp changed between Q4 2025 and Q1 2026.

All holders in Q1 2026 All holders in Q4 2025

13F holders of MBWM: Q4 2025 compared with Q1 2026
Measure	Q4 2025	Of which not filed for Q1 2026	Q1 2026	Change
Holders	192	5	201	+14
Shares	10.7M	1.11M	11.7M	+2.10M (+21.9%)
Value	$514.8M	$53.4M	$590.5M	+$129.1M (+28.0%)

5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (30)

Institutions that held Mercantile Bank Corp at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to MBWM in Q1 2026
Institution	Shares	Value	% of portfolio
Vanguard Capital Management LLC	704,324	$35.6M	0.00%
Vanguard Portfolio Management LLC	275,321	$13.9M	0.00%
Vanguard Fiduciary Trust Co	110,259	$5.57M	0.00%
Empowered Funds, LLC	78,969	$3.99M	0.03%
RMB Capital Management, LLC	26,654	$1.35M	0.02%
Discipline Wealth Solutions, LLC	19,826	$1.00M	0.11%
Susquehanna International Group, LLP	12,693	$641.0K	0.00%
Blair William & Co	12,189	$615.5K	0.00%
Alps Advisors Inc	9,920	$501.0K	0.00%
Vanguard Asset Management, Ltd	9,190	$464.1K	0.00%
XTX Topco Ltd	8,705	$439.6K	0.01%
Modern Wealth Management, LLC	8,606	$439.3K	0.01%
Vanguard Global Advisers, LLC	6,262	$316.2K	0.00%
LeClair Wealth Partners LLC	5,826	$294.2K	0.10%
Greenleaf Trust	5,012	$253.1K	0.00%
Harbor Capital Advisors, Inc.	4,748	$240.0K	0.02%
Jane Street Group, LLC	4,654	$235.0K	0.00%
Squarepoint Ops LLC	4,635	$234.1K	0.00%
Skopos Labs, Inc.	4,091	$206.6K	0.01%
Old Mission Investment Co LLC	3,984	$201.2K	0.05%
JMN Financial LLC	3,964	$200.2K	0.20%
Vanguard Investments Australia, Ltd.	3,188	$161.0K	0.00%
Quantbot Technologies LP	3,146	$158.9K	0.01%
Harbour Investments, Inc.	1,000	$50.5K	0.00%
Trask Adam Roland	500	$25.3K	0.02%
Root Financial Partners, LLC	26	$1.31K	0.00%
Northwestern Mutual Wealth Management Co	18	$909	0.00%
Bare Financial Services, Inc	10	$505	0.00%
Twin Peaks Wealth Advisors, LLC	8	$404	0.00%
Kilter Group LLC	1	$51	0.00%

Sold out (16)

Institutions that held Mercantile Bank Corp at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of MBWM in Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Two Sigma Advisers, LP	40,884	$1.97M
Marshall Wace, LLP	28,415	$1.37M
Millennium Management LLC	23,711	$1.14M
Tudor Investment Corp Et Al	23,319	$1.12M
HSBC Holdings PLC	17,959	$861.1K
West Michigan Advisors, LLC	6,887	$331.3K
Mackenzie Financial Corp	6,410	$307.1K
Quest Partners LLC	5,200	$250.1K
MML Investors Services, LLC	4,658	$224.1K
Engineers Gate Manager LP	4,264	$205.1K
Kestra Advisory Services, LLC	543	$26.1K
Amalgamated Bank	499	$24.0K
Eurizon Capital SGR S.p.A.	68	$3.27K
Simplex Trading, LLC	57	$2.74K
Aster Capital Management (DIFC) Ltd	6	$289
Clearstead Advisors, LLC	2	$97

Not filed for Q1 2026 yet (5)

Institutions that held Mercantile Bank Corp at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MBWM in Q4 2025 that haven't filed for Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Vanguard Group Inc	1,066,368	$51.3M
Brandywine Global Investment Management, LLC	33,147	$1.59M
Comerica Bank	8,345	$401.4K
EMC Capital Management	2,813	$135.0K
Global Retirement Partners, LLC	58	$2.79K