Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MBWM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 1.4M | $70.1M | -3.5% | 8.039% | 0.00% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | 1.2M | $60.0M | +303.3% | 6.883% | 0.01% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 1.0M | $52.2M | +0.1% | 5.979% | 0.01% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 704K | $35.6M | β | 4.077% | 0.00% |
| 5 | AMERICAN CENTURY COMPANIES INC | 561K | $28.4M | +8.4% | 3.250% | 0.01% |
| 6 | STATE STREET CORP | 502K | $25.4M | +12.4% | 2.909% | 0.00% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | 472K | $23.8M | -4.8% | 2.734% | 0.04% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 435K | $22.0M | +8.1% | 2.518% | 0.00% |
| 9 | NORTH STAR ASSET MANAGEMENT INC | 383K | $19.4M | +2.3% | 2.218% | 0.84% |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 275K | $13.9M | β | 1.594% | 0.00% |
| 11 | NORTHERN TRUST CORP | 233K | $11.7M | +39.3% | 1.347% | 0.00% |
| 12 | Tributary Capital Management, LLC | 225K | $11.3M | -2.9% | 1.300% | 1.10% |
| 13 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 191K | $9.7M | -5.7% | 1.107% | 0.03% |
| 14 | TWO SIGMA INVESTMENTS, LP | 182K | $9.2M | +51.1% | 1.052% | 0.01% |
| 15 | AQR CAPITAL MANAGEMENT LLC | 147K | $7.4M | -8.1% | 0.849% | 0.00% |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 140K | $7.1M | +5.4% | 0.813% | 0.00% |
| 17 | BANC FUNDS CO LLC | 131K | $6.6M | +0.2% | 0.759% | 1.23% |
| 18 | MERCER GLOBAL ADVISORS INC /ADV | 129K | $6.5M | +18.0% | 0.748% | 0.01% |
| 19 | MORGAN STANLEY | 127K | $6.4M | -20.3% | 0.737% | 0.00% |
| 20 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 126K | $6.4M | +5.1% | 0.731% | 0.13% |
| 21 | ProShare Advisors LLC | 126K | $6.3M | -3.4% | 0.727% | 0.01% |
| 22 | GOLDMAN SACHS GROUP INC | 113K | $5.7M | -15.6% | 0.653% | 0.00% |
| 23 | VANGUARD FIDUCIARY TRUST CO | 110K | $5.6M | β | 0.638% | 0.00% |
| 24 | Bank of New York Mellon Corp | 93K | $4.7M | -0.2% | 0.536% | 0.00% |
| 25 | Siena Capital Partners GP, LLC | 84K | $4.2M | 0.0% | 0.486% | 1.10% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in MBWM β a direct measure of their conviction.
Filings activity in MBWM during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new MBWM position in Q1 2026
Institutions that fully closed their MBWM position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 196 | +3.7% | 59.09% | +6.88 pp | $563M | +13% |
| Q4 2025 | 189 | 3.6% | 52.21% | +2.95 pp | $498M | +6.0% |
| Q3 2025 | 196 | +2.1% | 49.26% | +1.13 pp | $470M | +2.3% |
| Q2 2025 | 192 | 0.5% | 48.13% | +3.19 pp | $459M | +7.1% |
| Q1 2025 | 193 | +12% | 44.94% | 0.64 pp | $429M | 1.4% |
| Q4 2024 | 173 | +8.8% | 45.58% | +2.09 pp | $435M | +4.8% |
| Q3 2024 | 159 | 0.6% | 43.49% | +3.68 pp | $415M | +9.3% |
| Q2 2024 | 160 | β | 39.81% | β | $380M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MBWM stock.
Based on Q1 2026 13F filings, institutional ownership of Mercantile Bank Corporation stands at 59.1%, held across 196 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of MBWM, with approximately 1,388,714 shares worth $0.07B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of MBWM, including RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for MBWM is 67 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
28 institutions opened new positions in MBWM during Q1 2026, while 21 fully exited. 135 added to existing positions and 31 trimmed.
MBWM institutional ownership rose by 6.88 percentage points quarter-over-quarter, with a net change of +7 holders.
The top 10 institutions account for 62.2% of all reported 13F value in MBWM, and the top 25 account for 81.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Mercantile Bank Corporation (MBWM) Institutional Ownership