MESA LABORATORIES INC /CO/ - Director's Dealing 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO (MLAB)
CIK: 0000724004
Period of Report: 2015-04-27

Reporting Person: SCHMIEDER LUKE R (Former Director)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-04-27	Common Stock	M	675	$14.5	Acquired	170163	Direct
2015-04-27	Common Stock	F	116	$84.46	Disposed	170047	Direct
2015-04-27	Common Stock	M	1000	$18.98	Acquired	171047	Direct
2015-04-27	Common Stock	F	225	$84.46	Disposed	170822	Direct
2015-04-27	Common Stock	M	1350	$21.93	Acquired	172172	Direct
2015-04-27	Common Stock	F	351	$84.46	Disposed	171821	Direct
2015-04-27	Common Stock	M	2400	$16.6	Acquired	174221	Direct
2015-04-27	Common Stock	F	472	$84.46	Disposed	173749	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-04-27	Non Qualified Stock Option	$14.5	X	675	Disposed	2016-04-27	Common Stock (675)	Direct
2015-04-27	Non Qualified Stock Option	$18.98	X	1000	Disposed	2017-05-11	Common Stock (1000)	Direct
2015-04-27	Non Qualified Stock Option	$21.93	X	1350	Disposed	2018-04-01	Common Stock (1350)	Direct
2015-04-27	Non Qualified Stock Option	$16.6	X	2400	Disposed	2019-04-01	Common Stock (2400)	Direct

F1: 25% exercisable on each anniversary date following the 04/27/2006 grant date.

F2: 25% Exercisable on each anniversary date following the 05/11/2007 grant date.

F3: 25% exercisable on each anniversary date following the 04/01/2008 grant date.

F4: 25% exercisable on each anniversary date following the 04/01/2009 grant date.