PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

Private Advisor Group, LLC's Holding History (CIK: 0001567755)

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

Q1 2021

Shares 2,138 Value ($000) $260 Avg Close $166.30 Range $109.17 - $286.57

Q2 2020

Shares 228 Value ($000) $26 Avg Close $102.64 Range $66.01 - $136.85

Q4 2019

Shares 3,395 Value ($000) $345 Avg Close $99.10 Range $89.02 - $107.86

Q3 2019

Shares 3,124 Value ($000) $319 Avg Close $101.95 Range $88.75 - $119.80

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	2,138	$260	$166.30	$109.17 - $286.57
Q2 2020	228	$26	$102.64	$66.01 - $136.85
Q4 2019	3,395	$345	$99.10	$89.02 - $107.86
Q3 2019	3,124	$319	$101.95	$88.75 - $119.80