PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

Allen Investment Management LLC's Holding History (CIK: 0001326234)

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

Q4 2018

Shares 20,742 Value ($000) $2,339 Avg Close $123.33 Range $101.03 - $163.03

Q3 2018

Shares 20,742 Value ($000) $3,355 Avg Close $141.47 Range $115.95 - $166.60

Q2 2018

Shares 20,742 Value ($000) $2,467 Avg Close $122.45 Range $111.20 - $136.40

Q1 2018

Shares 20,742 Value ($000) $2,438 Avg Close $113.00 Range $100.05 - $126.95

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	20,742	$2,339	$123.33	$101.03 - $163.03
Q3 2018	20,742	$3,355	$141.47	$115.95 - $166.60
Q2 2018	20,742	$2,467	$122.45	$111.20 - $136.40
Q1 2018	20,742	$2,438	$113.00	$100.05 - $126.95