MESA LABS INC

Ticker: MLAB CUSIP: 59064R109 Class: Common Stock

LORD, ABBETT & CO. LLC's Holding History (CIK: 0000728100)

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

Q4 2017

Shares 23,379 Value ($000) $2,906 Avg Close $135.32 Range $118.50 - $157.82

Q3 2017

Shares 29,391 Value ($000) $4,389 Avg Close $136.33 Range $123.49 - $150.04

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	23,379	$2,906	$135.32	$118.50 - $157.82
Q3 2017	29,391	$4,389	$136.33	$123.49 - $150.04