MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q3 2018

Shares 1,600 Value ($000) $296 Avg Close $195.39 Range $165.11 - $218.31

Q2 2018

Shares 1,600 Value ($000) $337 Avg Close $169.69 Range $134.32 - $207.68

Q2 2017

Shares 2,100 Value ($000) $300 Avg Close $137.24 Range $116.47 - $164.05

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	1,600	$296	$195.39	$165.11 - $218.31
Q2 2018	1,600	$337	$169.69	$134.32 - $207.68
Q2 2017	2,100	$300	$137.24	$116.47 - $164.05