PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

ADVISORY RESEARCH INC's Holding History (CIK: 0000902584)

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

Q3 2020

Shares 7,415 Value ($000) $960 Avg Close $131.45 Range $106.69 - $164.99

Q2 2020

Shares 2,814 Value ($000) $316 Avg Close $102.64 Range $66.01 - $136.85

Q2 2019

Shares 6,922 Value ($000) $803 Avg Close $107.63 Range $97.08 - $119.98

Q1 2019

Shares 17,001 Value ($000) $1,787 Avg Close $112.20 Range $94.20 - $130.60

Q4 2018

Shares 20,407 Value ($000) $2,302 Avg Close $123.33 Range $101.03 - $163.03

Q3 2018

Shares 40,866 Value ($000) $6,610 Avg Close $141.47 Range $115.95 - $166.60

Q2 2018

Shares 41,163 Value ($000) $4,896 Avg Close $122.45 Range $111.20 - $136.40

Q1 2018

Shares 33,408 Value ($000) $3,927 Avg Close $113.00 Range $100.05 - $126.95

Q4 2017

Shares 35,569 Value ($000) $3,664 Avg Close $89.74 Range $79.06 - $109.10

Q3 2017

Shares 32,728 Value ($000) $2,628 Avg Close $72.28 Range $66.85 - $80.40

Q2 2017

Shares 12,314 Value ($000) $828 Avg Close $60.44 Range $48.70 - $70.10

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	7,415	$960	$131.45	$106.69 - $164.99
Q2 2020	2,814	$316	$102.64	$66.01 - $136.85
Q2 2019	6,922	$803	$107.63	$97.08 - $119.98
Q1 2019	17,001	$1,787	$112.20	$94.20 - $130.60
Q4 2018	20,407	$2,302	$123.33	$101.03 - $163.03
Q3 2018	40,866	$6,610	$141.47	$115.95 - $166.60
Q2 2018	41,163	$4,896	$122.45	$111.20 - $136.40
Q1 2018	33,408	$3,927	$113.00	$100.05 - $126.95
Q4 2017	35,569	$3,664	$89.74	$79.06 - $109.10
Q3 2017	32,728	$2,628	$72.28	$66.85 - $80.40
Q2 2017	12,314	$828	$60.44	$48.70 - $70.10