MESA LABORATORIES INC /CO/ - Director's Dealing 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO/ (MLAB)
CIK: 0000724004
Period of Report: 2021-12-10

Reporting Person: Sakys John (CFO)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-12-10	Common Stock	M	158	$89.7	Acquired	7672	Direct
2021-12-10	Common Stock	M	1600	$97.78	Acquired	9272	Direct
2021-12-10	Common Stock	S	1758	$324.74	Disposed	7514	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-12-10	Incentive Stock Option	$89.7	X	158	Disposed	2022-04-01	Common Stock (158)	Direct
2021-12-10	Non Qualified Stock Option	$97.78	X	1600	Disposed	2022-04-01	Common Stock (1600)	Direct

F1: 1/7 exercisable on each anniversary date of the 04/01/2014 grant date

F2: 1/5 exercisable on each anniversary date of the 04-01-2016 grant date

F3: Sale reported on this Form 4 was effected pursuant to a Rule 10B5-1 trading plan adopted by the reporting person on March 1, 2021