MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

Mesirow Financial Investment Management, Inc.'s Holding History (CIK: 0001469475)

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

Q2 2021

Shares 1,315 Value ($000) $357 Avg Close $248.03 Range $227.68 - $268.74

Q1 2021

Shares 1,310 Value ($000) $319 Avg Close $268.89 Range $231.88 - $300.91

Q4 2020

Shares 1,347 Value ($000) $386,104 Avg Close $268.73 Range $247.92 - $285.33

Q3 2020

Shares 1,341 Value ($000) $342 Avg Close $231.93 Range $202.54 - $252.24

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	1,315	$357	$248.03	$227.68 - $268.74
Q1 2021	1,310	$319	$268.89	$231.88 - $300.91
Q4 2020	1,347	$386,104	$268.73	$247.92 - $285.33
Q3 2020	1,341	$342	$231.93	$202.54 - $252.24