MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

HighTower Advisors, LLC's Holding History (CIK: 0001462245)

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

Q2 2021

Shares 1,405 Value ($000) $377 Avg Close $248.03 Range $227.68 - $268.74

Q1 2021

Shares 1,399 Value ($000) $334 Avg Close $268.89 Range $231.88 - $300.91

Q4 2020

Shares 1,349 Value ($000) $390 Avg Close $268.73 Range $247.92 - $285.33

Q3 2020

Shares 1,166 Value ($000) $303 Avg Close $231.93 Range $202.54 - $252.24

Q2 2020

Shares 1,245 Value ($000) $267 Avg Close $224.85 Range $197.47 - $262.51

Q1 2020

Shares 992 Value ($000) $223 Avg Close $240.43 Range $177.40 - $264.58

Q4 2019

Shares 839 Value ($000) $205 Avg Close $228.21 Range $201.87 - $248.54

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	1,405	$377	$248.03	$227.68 - $268.74
Q1 2021	1,399	$334	$268.89	$231.88 - $300.91
Q4 2020	1,349	$390	$268.73	$247.92 - $285.33
Q3 2020	1,166	$303	$231.93	$202.54 - $252.24
Q2 2020	1,245	$267	$224.85	$197.47 - $262.51
Q1 2020	992	$223	$240.43	$177.40 - $264.58
Q4 2019	839	$205	$228.21	$201.87 - $248.54