MESA LABORATORIES INC /CO/ — Director's Dealing 2023

Jun 21, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO/ (MLAB)
CIK: 0000724004
Period of Report: 2023-06-16

Reporting Person: Archbold Brian David (SVP Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-06-16	Common Stock	M	612	—	Acquired	2247	Direct
2023-06-16	Common Stock	F	189	$135.55	Disposed	2058	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-06-16	Restricted Stock Units - 1	$	M	35	Disposed		Common Stock (35)	Direct
2023-06-16	Restricted Stock Units - 2	$	M	133	Disposed		Common Stock (133)	Direct
2023-06-16	Restricted Stock Units - 4	$	M	177	Disposed		Common Stock (177)	Direct
2023-06-16	Restricted Stock Units - 6	$	M	267	Disposed		Common Stock (267)	Direct

Footnotes

F1: Each RSU represents a contingent right to receive one share of the Issuer's common stock

F2: RSUs that vest 1/5 on June 15, 2019 and each of the next four anniversary dates

F3: Not applicable

F4: RSUs that vest 1/3 on June 15, 2021 and each of the next two anniversary dates

F5: RSUs that vest 1/3 on September 1, 2022, 1/3 on June 15, 2023 and 1/3 on June 15, 2024

F6: RSUs that vest 1/3 on June 15, 2023 and each of the next two anniversary dates