MESA LABORATORIES INC /CO/ — Director's Dealing 2018

Jun 15, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO (MLAB)
CIK: 0000724004
Period of Report: 2018-06-13

Reporting Person: Sullivan John James (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-06-15	Common Stock	M	3200	$25.56	Acquired	74498	Direct
2018-06-15	Common Stock	M	8800	$29.2	Acquired	83298	Direct
2018-06-15	Common Stock	S	12000	$197.02	Disposed	71298	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-06-15	Non Qualified Stock Option	$25.56	X	3200	Disposed	2020-04-01	Common Stock (3200)	Direct
2018-06-15	Non Qualified Stock Option	$29.2	X	8800	Disposed	2021-04-01	Common Stock (8800)	Direct

Footnotes

F1: 25% Exercisable on each anniversary of the 4/01/10 grant date

F2: 25% Exercisable on each anniversary of the 4/01/11 grant date