Mercantile Bank Corporation (MBWM) Ownership

NASDAQ: MBWMTop holders, insider trades and short interest.

MBWM ownership summary

as of October 18, 2026
Institutions
71.0%
of shares outstanding
Insiders
3.10%
of shares outstanding
Shares outstanding
17.3M
Float
16.8M
shares available to trade
Short interest
3.72%
626K shares short
Days to cover
5.38
short interest up 5.2% vs prior month
  • Institutions 71.05%
  • Insiders 3.10%
  • Other investors 25.85%

MBWM top institutional holders

20 largest
Mercantile Bank Corporation top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc8.88%1.5M$89.9M+145,678 (+10.5%)June 30, 2026
2Wellington Management Company LLP6.29%1.1M$63.8M−101,033 (−8.5%)June 30, 2026
3Dimensional Fund Advisors, Inc.6.06%1.0M$61.4M+13,953 (+1.4%)June 30, 2026
4Vanguard Capital Management, LLC4.26%736K$43.1M+31,289 (+4.4%)June 30, 2026
5American Century Companies Inc3.62%625K$36.6M+63,548 (+11.3%)June 30, 2026
6State Street Corp3.46%599K$35.1M+96,173 (+19.1%)June 30, 2026
7Geode Capital Management, LLC2.70%466K$27.3M+31,398 (+7.2%)June 30, 2026
8Renaissance Technologies Corp2.58%447K$26.2M−25,600 (−5.4%)June 30, 2026
9NorthStar Asset Management, Inc.2.18%377K$22.1M−5,753 (−1.5%)June 30, 2026
10Vanguard Portfolio Management, LLC1.68%290K$17.0M+14,772 (+5.4%)June 30, 2026
11LSV Asset Management1.62%281K$16.5M−2,400 (−0.8%)June 30, 2026
12Northern Trust Corp1.39%241K$14.1M+8,068 (+3.5%)June 30, 2026
13Tributary Capital Management, LLC1.26%218K$12.8M−6,486 (−2.9%)June 30, 2026
14Two Sigma Investments LLC1.24%214K$12.5M+32,093 (+17.7%)June 30, 2026
15Hotchkis & Wiley Capital Management LLC1.11%193K$11.3M+1,350 (+0.7%)June 30, 2026
16Charles Schwab Investment Management Inc0.83%144K$8.5M+3,742 (+2.7%)June 30, 2026
17JPMorgan Chase & Co0.81%140K$8.2M−8,761 (−5.9%)June 30, 2026
18AQR Capital Management LLC0.80%138K$8.1M−8,987 (−6.1%)June 30, 2026
19Banc Funds Co LLC0.76%131K$7.7M—June 30, 2026
20Mercer Global Advisors Inc.0.74%128K$7.5M−1,334 (−1.0%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 442K shares and 8 cut 160K.

MBWM top mutual fund and ETF holders

20 largest
Mercantile Bank Corporation top fund holders
#Holder% of sharesSharesValueChangeReported
1Avantis US Small Cap Value ETF3.25%562K$32.9M+408 (+0.1%)September 30, 2026
2Vanguard MStar Total Stk Mkt Idx Invest3.01%520K$30.5M—August 31, 2026
3iShares Russell 2000 ETF2.76%477K$27.9M+5,707 (+1.2%)September 30, 2026
4DFA US Small Cap Value I1.35%234K$13.7M—August 31, 2026
5T. Rowe Price Small-Cap Value1.15%199K$11.6M+198,683 (0.0%)August 31, 2026
6Fidelity Small Cap Index1.09%189K$11.1M+1,766 (+0.9%)July 31, 2026
7iShares Russell 2000 Value ETF0.98%170K$10.0M+258 (+0.2%)September 30, 2026
8State Street® SPDR® S&PRgnllBkgETF0.97%167K$9.8M+4,992 (+3.1%)September 30, 2026
9DFA US Targeted Value I0.76%132K$7.7M—August 31, 2026
10Tributary Small Company Instl0.72%125K$7.3M−3,337 (−2.6%)August 31, 2026
11DFA US Small Cap I0.60%103K$6.0M—August 31, 2026
12Vanguard Russell 2000 ETF0.57%99K$5.8M+2,250 (+2.3%)August 31, 2026
13Vanguard Dividend Appreciation ETF0.57%98K$5.7M—August 31, 2026
14Dimensional US Small Cap Value ETF0.55%95K$5.6M+66 (+0.1%)September 24, 2026
15Dimensional US Targeted Value ETF0.54%94K$5.5M—September 30, 2026
16Schwab US Small-Cap ETF™0.53%92K$5.4M+54 (+0.1%)September 30, 2026
17Fidelity Extended Market Index0.50%86K$5.1M−1,535 (−1.7%)August 31, 2026
18DFA US Micro Cap I0.37%64K$3.8M+258 (+0.4%)August 31, 2026
19VT De Lisle America B USD0.35%61K$3.6M−1,500 (−2.4%)September 30, 2026
20Dimensional US Small Cap ETF0.33%57K$3.3M—September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

MBWM insider transactions

latest 3
Mercantile Bank Corporation insider transactions
DateNameTransactionPriceSharesValue
2025-10-31Nelson F SanchezBuy$43.501,000$43,500
2025-07-29Shoran R WilliamsBuy$47.28200$9,456
2025-05-02Robert B KaminskiSell$42.85250$10,712

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

MBWM shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns MBWM

Institutional investors own 71.0% of Mercantile Bank's shares and insiders 3.10%. The largest holder is BlackRock Inc with 8.88% of the shares (1.5M), as of June 30, 2026. Among the top 20 institutions, 11 added shares and 8 reduced their stake in the latest filings. Short interest is 3.72% of the float, or 5.38 days of average trading volume. The share count fell 4.3% since 2014.

Related: MBWM analyst forecast, MBWM key metrics, MBWM dividend history. See the MBWM stock overview for the latest quote and news.

MBWM ownership FAQ

Who owns the most Mercantile Bank stock?

The largest shareholders of Mercantile Bank are BlackRock Inc (8.88%), Wellington Management Company LLP (6.29%), Dimensional Fund Advisors, Inc. (6.06%), Vanguard Capital Management, LLC (4.26%), American Century Companies Inc (3.62%).

What percentage of Mercantile Bank is owned by institutions?

Institutions hold 71.0% of Mercantile Bank's shares outstanding; insiders hold 3.10%.

Which funds own Mercantile Bank?

The largest fund holders of Mercantile Bank are Avantis US Small Cap Value ETF (3.25%), Vanguard MStar Total Stk Mkt Idx Invest (3.01%), iShares Russell 2000 ETF (2.76%), DFA US Small Cap Value I (1.35%), T. Rowe Price Small-Cap Value (1.15%).

What is Mercantile Bank's short interest?

626K shares of Mercantile Bank were sold short, 3.72% of the float; at the average daily volume it would take 5.38 days to cover.

Are insiders buying or selling Mercantile Bank?

Of the latest 3 reported insider transactions in Mercantile Bank (since May 2, 2025), 2 were purchases and 1 were sales.

How many shares of Mercantile Bank are outstanding?

Mercantile Bank has 17.3M shares outstanding, of which 16.8M are in the public float.

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