MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

Clearbridge Investments, LLC's Holding History (CIK: 0001348883)

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

Q2 2021

Shares 3,105 Value ($000) $842 Avg Close $248.03 Range $227.68 - $268.74

Q1 2021

Shares 2,575 Value ($000) $627 Avg Close $268.89 Range $231.88 - $300.91

Q4 2020

Shares 2,035 Value ($000) $583 Avg Close $268.73 Range $247.92 - $285.33

Q3 2020

Shares 1,373 Value ($000) $350 Avg Close $231.93 Range $202.54 - $252.24

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	3,105	$842	$248.03	$227.68 - $268.74
Q1 2021	2,575	$627	$268.89	$231.88 - $300.91
Q4 2020	2,035	$583	$268.73	$247.92 - $285.33
Q3 2020	1,373	$350	$231.93	$202.54 - $252.24