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

Aug 13, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO (MLAB)
CIK: 0000724004
Period of Report: 2020-08-10

Reporting Person: Archbold Brian David (SVP Continuous Improvement)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-08-10	Common Stock	M	145	$129.10	Acquired	415	Direct
2020-08-10	Common Stock	S	145	$250	Disposed	270	Direct
2020-08-10	Common Stock	M	420	$142.40	Acquired	690	Direct
2020-08-10	Common Stock	S	420	$250	Disposed	270	Direct
2020-08-10	Common Stock	S	38	$250	Disposed	232	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-08-10	Non Qualified Stock Option	$129.10	X	145	Disposed	2024-01-08	Common Stock (145)	Direct
2020-08-10	Non Qualified Stock Option	$142.40	X	420	Disposed	2024-04-02	Common Stock (420)	Direct

Footnotes

F1: 1/5 exercisable on each anniversary date of the 1/08/18 grant date

F2: 1/5 exercisable on each anniversary date of the 4/2/18 grant date