William Blair & Company
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William Blair & Company’s Mercantile Bank Corp MBWM Stock Holding History

William Blair & Company’s Portfolio MBWM Stock Details MBWM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$705K Buy
12,276
+87
+0.7% +$4.59K ﹤0.01% 1102
2026
Q1 		$616K Buy
+12,189
New +$626K ﹤0.01% 1076

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William Blair & Company's MBWM Position: Q2 2026 in Review

William Blair & Company increased its Mercantile Bank Corp (MBWM) stake by 0.71% in Q2 2026, buying an estimated $4.59K and bringing the position to 12,276 shares worth $705K. The position accounts for ﹤0.01% of the portfolio, ranked #1102.

William Blair & Company first reported a position in MBWM in Q1 2026 and has held it in 2 quarters since. 207 funds tracked by Wall St. Rank hold MBWM as of Q2 2026.

  • William Blair & Company held 12,276 shares of Mercantile Bank Corp worth $705K as of Q2 2026.
  • William Blair & Company bought 87 Mercantile Bank Corp shares in Q2 2026, an estimated $4.59K.
  • Mercantile Bank Corp made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1102 holding.
  • William Blair & Company first reported a position in Mercantile Bank Corp in Q1 2026 and has held it in 2 quarters since.
  • 207 funds tracked by Wall St. Rank held Mercantile Bank Corp as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.