WINTRUST FINL CORP

Ticker: WTFC CUSIP: 97650W108 Class: Com

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q4 2017

Shares 48,115 Value ($000) $3,963 Avg Close $80.52 Range $76.00 - $86.80

Q3 2017

Shares 52,134 Value ($000) $4,083 Avg Close $74.32 Range $67.74 - $80.52

Q2 2017

Shares 52,134 Value ($000) $3,985 Avg Close $71.60 Range $64.14 - $79.27

Q1 2017

Shares 75,967 Value ($000) $5,251 Avg Close $71.85 Range $65.29 - $76.71

Q4 2016

Shares 88,432 Value ($000) $6,418 Avg Close $62.10 Range $51.66 - $73.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	48,115	$3,963	$80.52	$76.00 - $86.80
Q3 2017	52,134	$4,083	$74.32	$67.74 - $80.52
Q2 2017	52,134	$3,985	$71.60	$64.14 - $79.27
Q1 2017	75,967	$5,251	$71.85	$65.29 - $76.71
Q4 2016	88,432	$6,418	$62.10	$51.66 - $73.94