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

Nov 16, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO/ (MLAB)
CIK: 0000724004
Period of Report: 2021-11-15

Reporting Person: Sullivan John James (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-11-15	Common Stock	M	438	$89.7	Acquired	22295	Direct
2021-11-15	Common Stock	M	4754	$97.78	Acquired	27049	Direct
2021-11-15	Common Stock	S	5192	$308.02	Disposed	21857	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-11-15	Non Qualified Stock Option	$89.7	X	438	Disposed	2022-04-01	Common Stock (438)	Direct
2021-11-15	Non Qualified Stock Options	$97.78	X	4754	Disposed	2022-04-01	Common Stock (4754)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	30000	Indirect

Footnotes

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 February 25, 2021

F4: Represents gift of shares to a spousal lifetime access trust