MERCANTILE BANK CORP

Ticker: MBWM CUSIP: 587376104 Class: Common Stock

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

Note: Option positions (PUT/CALL) are excluded.

Q2 2018

Shares 9,580 Value ($000) $354 Avg Close $26.43 Range $24.25 - $28.08

Q1 2018

Shares 9,580 Value ($000) $319 Avg Close $25.60 Range $23.81 - $27.39

Q4 2017

Shares 10,563 Value ($000) $374 Avg Close $26.15 Range $24.52 - $27.67

Q3 2017

Shares 10,563 Value ($000) $369 Avg Close $22.92 Range $21.01 - $26.06

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	9,580	$354	$26.43	$24.25 - $28.08
Q1 2018	9,580	$319	$25.60	$23.81 - $27.39
Q4 2017	10,563	$374	$26.15	$24.52 - $27.67
Q3 2017	10,563	$369	$22.92	$21.01 - $26.06