MESA LABORATORIES INC /CO/ — Director's Dealing 2020

Feb 27, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO (MLAB)
CIK: 0000724004
Period of Report: 2020-02-25

Reporting Person: Sullivan John James (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-25	Common Stock	M	6000	$50.5	Acquired	77347	Direct
2020-02-25	Common Stock	M	2206	$51.85	Acquired	79553	Direct
2020-02-25	Common Stock	S	8206	$267.09	Disposed	71347	Direct
2020-02-26	Common Stock	M	100	$51.85	Acquired	71447	Direct
2020-02-26	Common Stock	M	970	$89.7	Acquired	72417	Direct
2020-02-26	Common Stock	S	1070	$263.39	Disposed	71347	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-25	Non Qualified Stock Option	$50.5	X	6000	Disposed	2022-04-02	Common Stock (6000)	Direct
2020-02-25	Non Qualified Stock Option	$51.85	X	2206	Disposed	2023-04-01	Common Stock (2206)	Direct
2020-02-26	Non Qualified Stock Option	$51.85	X	100	Disposed	2023-04-01	Common Stock (100)	Direct
2020-02-26	non Qualified Stock Option	$89.7	X	970	Disposed	2022-04-01	Common Stock (970)	Direct

Footnotes

F1: 25% Exercisable on each anniversary of the 4-2-13 grant date

F2: 25% exercisable on each anniversary date of the 4-1-13 grant date

F3: 1/7 exercisable each anniversary date of the 4-1-14 grant date