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: 2020-02-27

Reporting Person: Sullivan John James (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-27	Common Stock	M	1494	$51.85	Acquired	72841	Direct
2020-02-27	Common Stock	M	208	$89.7	Acquired	73049	Direct
2020-02-27	Common Stock	S	1702	$256.02	Disposed	71347	Direct
2020-02-27	Common Stock	M	785	$89.7	Acquired	72132	Direct
2020-02-27	Common Stock	M	799	$70.56	Acquired	72931	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-27	Non Qualified Stock Option	$51.85	X	1494	Disposed	2023-04-01	Common Stock (1494)	Direct
2020-02-27	Non Qualified Stock Option	$89.7	X	208	Disposed	2022-04-01	Common Stock (208)	Direct
2020-02-27	Incentive Stock Option	$89.7	X	785	Disposed	2022-04-01	Common Stock (785)	Direct
2020-02-27	Incentive Stock Option	$70.56	X	799	Disposed	2023-04-01	Common Stock (799)	Direct

Footnotes

F1: 1/4 exercisable on each anniverary date of the 04/01/13 grant

F2: 1/7 exercisable on each anniversary date of the 04/01/14 grant date

F3: 1/7 exercisable on each anniversary date of the 4-1-15 grant date