MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

Dorsey Wright & Associates's Holding History (CIK: 0001376772)

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

Q1 2020

Shares 58 Value ($000) $13 Avg Close $240.43 Range $177.40 - $264.58

Q4 2019

Shares 61 Value ($000) $15 Avg Close $228.21 Range $201.87 - $248.54

Q3 2019

Shares 61 Value ($000) $15 Avg Close $225.06 Range $200.11 - $261.29

Q2 2019

Shares 61 Value ($000) $15 Avg Close $226.56 Range $176.37 - $256.07

Q1 2019

Shares 46 Value ($000) $11 Avg Close $219.75 Range $195.71 - $235.22

Q4 2018

Shares 91 Value ($000) $19 Avg Close $189.46 Range $162.53 - $218.23

Q3 2018

Shares 76 Value ($000) $14 Avg Close $195.39 Range $165.11 - $218.31

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	58	$13	$240.43	$177.40 - $264.58
Q4 2019	61	$15	$228.21	$201.87 - $248.54
Q3 2019	61	$15	$225.06	$200.11 - $261.29
Q2 2019	61	$15	$226.56	$176.37 - $256.07
Q1 2019	46	$11	$219.75	$195.71 - $235.22
Q4 2018	91	$19	$189.46	$162.53 - $218.23
Q3 2018	76	$14	$195.39	$165.11 - $218.31