MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

Polar Asset Management Partners Inc.'s Holding History (CIK: 0001326389)

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

Q4 2019

Shares 31,589 Value ($000) $7,878 Avg Close $228.21 Range $201.87 - $248.54

Q3 2019

Shares 19,923 Value ($000) $4,737 Avg Close $225.06 Range $200.11 - $261.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	31,589	$7,878	$228.21	$201.87 - $248.54
Q3 2019	19,923	$4,737	$225.06	$200.11 - $261.29