MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

OAK RIDGE INVESTMENTS LLC's Holding History (CIK: 0001054554)

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

Q4 2020

Shares 14,171 Value ($000) $4,062 Avg Close $268.73 Range $247.92 - $285.33

Q3 2020

Shares 17,452 Value ($000) $4,446 Avg Close $231.93 Range $202.54 - $252.24

Q2 2020

Shares 18,753 Value ($000) $4,066 Avg Close $224.85 Range $197.47 - $262.51

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	14,171	$4,062	$268.73	$247.92 - $285.33
Q3 2020	17,452	$4,446	$231.93	$202.54 - $252.24
Q2 2020	18,753	$4,066	$224.85	$197.47 - $262.51