MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

TWO SIGMA ADVISERS, LP's Holding History (CIK: 0001478735)

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

Q2 2021

Shares 1,500 Value ($000) $407 Avg Close $248.03 Range $227.68 - $268.74

Q1 2021

Shares 3,300 Value ($000) $804 Avg Close $268.89 Range $231.88 - $300.91

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	1,500	$407	$248.03	$227.68 - $268.74
Q1 2021	3,300	$804	$268.89	$231.88 - $300.91