PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

WOLVERINE ASSET MANAGEMENT LLC's Holding History (CIK: 0001279891)

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

Q4 2018

Shares 8,544 Value ($000) $963 Avg Close $123.33 Range $101.03 - $163.03

Q3 2018

Shares 15,741 Value ($000) $2,546 Avg Close $141.47 Range $115.95 - $166.60

Q2 2018

Shares 15,256 Value ($000) $1,814 Avg Close $122.45 Range $111.20 - $136.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	8,544	$963	$123.33	$101.03 - $163.03
Q3 2018	15,741	$2,546	$141.47	$115.95 - $166.60
Q2 2018	15,256	$1,814	$122.45	$111.20 - $136.40