MESA LABORATORIES INC /CO/ — Director's Dealing 2019

Apr 16, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO (MLAB)
CIK: 0000724004
Period of Report: 2019-04-16

Reporting Person: BROOKS MICHAEL T (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-04-16	Common Stock	M	1000	$29.2	Acquired	33300	Direct
2019-04-16	Common Stock	M	1000	$50.5	Acquired	34300	Direct
2019-04-16	Common Stock	M	1000	$51.85	Acquired	35300	Direct
2019-04-16	Common Stock	M	856	$89.7	Acquired	36156	Direct
2019-04-16	Common Stock	M	68	$58.51	Acquired	36224	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-04-16	Non qualified stock option	$29.2	X	1000	Disposed	2019-05-05	Common Stock (1000)	Direct
2019-04-16	Non Qualified Stock Option	$50.5	X	1000	Disposed	2019-05-05	Common Stock (1000)	Direct
2019-04-16	Non Qualified Stock Option	$51.85	X	1000	Disposed	2019-05-05	Common Stock (1000)	Direct
2019-04-16	Non Qualified Stock Option	$89.7	X	856	Disposed	2019-05-05	Common Stock (856)	Direct
2019-04-16	Non Qualified Stock Option	$58.51	X	68	Disposed	2019-05-05	Common Stock (68)	Direct

Footnotes

F1: 1/4 exercisable on each of the first 4 anniversary dates

F2: Expiration date was accelerated from April 6, 2021 to May 5, 2019 due to retirement from the Board of Directors on April 5, 2019.

F3: Expiration date was accelerated from April 2, 2022 to May 5, 2019 due to retirement from the Board of Directors

F4: Expiration date was accelerated from 04/01/2023 to May 5, 2019 due to April 5, 2019 retirement from the Board of Directors

F5: 1/7 exercisable on each of the first 7 anniversary dates

F6: Expiration date was accelerated from April 1, 2022 to May 5, 2019 due to April 5, 2019 retirement from the Board of Directors

F7: Expiration date was accelerated from October 2, 2022 to May 5, 2019 due to April 5, 2019 retirement from the Board of Directors