Company · Ownership research

MERCANTILE BANK CORP MBWM

CIK 0001042729 · CUSIP 587376104

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 587376104 (MBWM), not CUSIP 587376904 (MBWM), and does not merge CUSIPs.

This page lists the top 20 of 200 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$64.44M 1,432,075 shares	0.00%	-75.36K(-5.00%)Reduced	SEC filing ↗ Nov 12, 2025	▾
02	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$47.18M 1,048,346 shares	0.01%	-14.42K(-1.40%)Reduced	SEC filing ↗ Nov 12, 2025	▾
03	VANGUARD GROUP INC CIK 102909 · View history	$46.75M 1,038,965 shares	0.00%	-394(0.00%)Reduced	SEC filing ↗ Nov 7, 2025	▾
04	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$22.25M 494,367 shares	0.01%	+41.54K(+9.20%)Added	SEC filing ↗ Nov 12, 2025	▾
05	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$22.07M 490,413 shares	0.03%	+5.10K(+1.10%)Added	SEC filing ↗ Nov 13, 2025	▾
06	STATE STREET CORP CIK 93751 · View history	$21.18M 470,722 shares	0.00%	+41.14K(+9.60%)Added	SEC filing ↗ Nov 14, 2025	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$18.55M 412,198 shares	0.00%	+6.33K(+1.60%)Added	SEC filing ↗ Nov 12, 2025	▾
08	NORTH STAR ASSET MANAGEMENT INC CIK 1056559 · View history	$15.99M 355,340 shares	0.65%	-1.20K(-0.30%)Reduced	SEC filing ↗ Nov 10, 2025	▾
09	LSV ASSET MANAGEMENT CIK 1050470 · View history	$13.51M 300,286 shares	0.03%	-17.90K(-5.60%)Reduced	SEC filing ↗ Nov 6, 2025	▾
10	Tributary Capital Management, LLC CIK 1441888 · Amended · View history	$11.19M 248,701 shares	1.01%	-9.51K(-3.70%)Reduced	SEC filing ↗ Jan 27, 2026	▾
11	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$9.66M 214,647 shares	0.00%	+58.74K(+37.70%)Added	SEC filing ↗ Nov 26, 2025	▾
12	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 1164833 · View history	$9.08M 201,713 shares	0.03%	+54.37K(+36.90%)Added	SEC filing ↗ Nov 14, 2025	▾
13	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$8.17M 181,511 shares	0.01%	+71.99K(+65.70%)Added	SEC filing ↗ Nov 14, 2025	▾
14	NORTHERN TRUST CORP CIK 73124 · View history	$7.83M 173,984 shares	0.00%	-2.55K(-1.40%)Reduced	SEC filing ↗ Nov 14, 2025	▾
15	MORGAN STANLEY CIK 895421 · Amended · View history	$7.56M 168,041 shares	0.00%	+54.26K(+47.70%)Added	SEC filing ↗ May 27, 2026	▾
16	BANC FUNDS CO LLC CIK 1029311 · View history	$7.21M 160,252 shares	1.26%	-34.90K(-17.90%)Reduced	SEC filing ↗ Nov 14, 2025	▾
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$6.00M 133,362 shares	0.00%	+511(+0.40%)Added	SEC filing ↗ Nov 10, 2025	▾
18	ProShare Advisors LLC CIK 1357955 · View history	$5.87M 130,438 shares	0.01%	-8.04K(-5.80%)Reduced	SEC filing ↗ Nov 6, 2025	▾
19	BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history	$5.09M 113,164 shares	0.11%	+5.52K(+5.10%)Added	SEC filing ↗ Nov 14, 2025	▾
20	MERCER GLOBAL ADVISORS INC /ADV CIK 853758 · View history	$4.98M 110,593 shares	0.01%	+4.20K(+3.90%)Added	SEC filing ↗ Nov 14, 2025	▾

Showing 20 / 200 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

200

Cancelled or null records excluded

Disclosed shares

10,616,092

Not deduplicated across managers

Disclosed value

$477.74M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

MERCANTILE BANK CORP · Q3 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.