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 192 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	$69.21M 1,438,885 shares	0.00%	+6.81K(+0.50%)Added	SEC filing ↗ Feb 12, 2026	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$51.29M 1,066,368 shares	0.00%	+27.40K(+2.60%)Added	SEC filing ↗ Jan 29, 2026	▾
03	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$49.61M 1,031,485 shares	0.01%	-16.86K(-1.60%)Reduced	SEC filing ↗ Feb 12, 2026	▾
04	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$24.91M 517,904 shares	0.01%	+23.54K(+4.80%)Added	SEC filing ↗ Feb 13, 2026	▾
05	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$23.87M 496,213 shares	0.04%	+5.80K(+1.20%)Added	SEC filing ↗ Feb 12, 2026	▾
06	STATE STREET CORP CIK 93751 · View history	$21.50M 447,016 shares	0.00%	-23.71K(-5.00%)Reduced	SEC filing ↗ Feb 13, 2026	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$19.37M 402,616 shares	0.00%	-9.58K(-2.30%)Reduced	SEC filing ↗ Feb 9, 2026	▾
08	NORTH STAR ASSET MANAGEMENT INC CIK 1056559 · View history	$18.02M 374,544 shares	0.73%	+19.20K(+5.40%)Added	SEC filing ↗ Feb 9, 2026	▾
09	LSV ASSET MANAGEMENT CIK 1050470 · View history	$14.19M 295,086 shares	0.03%	-5.20K(-1.70%)Reduced	SEC filing ↗ Feb 6, 2026	▾
10	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$14.18M 294,813 shares	0.00%	+294.81KNew	SEC filing ↗ Feb 17, 2026	▾
11	Tributary Capital Management, LLC CIK 1441888 · View history	$11.12M 231,259 shares	1.10%	-17.44K(-7.00%)Reduced	SEC filing ↗ Jan 27, 2026	▾
12	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 1164833 · View history	$9.75M 202,623 shares	0.03%	+910(+0.50%)Added	SEC filing ↗ Feb 17, 2026	▾
13	JPMORGAN CHASE & CO CIK 19617 · View history	$9.38M 195,038 shares	0.00%	-19.61K(-9.10%)Reduced	SEC filing ↗ Feb 11, 2026	▾
14	NORTHERN TRUST CORP CIK 73124 · View history	$8.03M 166,998 shares	0.00%	-6.99K(-4.00%)Reduced	SEC filing ↗ Feb 17, 2026	▾
15	MORGAN STANLEY CIK 895421 · Amended · View history	$7.68M 159,614 shares	0.00%	-8.43K(-5.00%)Reduced	SEC filing ↗ May 27, 2026	▾
16	AQR CAPITAL MANAGEMENT LLC CIK 1167557 · View history	$7.68M 159,564 shares	0.00%	-21.95K(-12.10%)Reduced	SEC filing ↗ Feb 17, 2026	▾
17	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$6.42M 133,499 shares	0.00%	+25.75K(+23.90%)Added	SEC filing ↗ Mar 25, 2026	▾
18	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history	$6.41M 133,288 shares	0.00%	-74(-0.10%)Reduced	SEC filing ↗ Feb 13, 2026	▾
19	BANC FUNDS CO LLC CIK 1029311 · View history	$6.29M 130,841 shares	1.25%	-29.41K(-18.40%)Reduced	SEC filing ↗ Feb 12, 2026	▾
20	ProShare Advisors LLC CIK 1357955 · View history	$6.26M 130,082 shares	0.01%	-356(-0.30%)Reduced	SEC filing ↗ Feb 6, 2026	▾

Showing 20 / 192 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

192

Cancelled or null records excluded

Disclosed shares

10,704,143

Not deduplicated across managers

Disclosed value

$514.79M

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 · Q4 2025

Explore all 192 reporting institutions.

This page includes 20 of 192 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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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.