MESA LABORATORIES INC /CO/ — Director's Dealing 2025

Jun 18, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MESA LABORATORIES INC /CO/ (MLAB)
CIK: 0000724004
Period of Report: 2025-06-15

Reporting Person: Sakys John (CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-06-15	Common Stock	M	793	—	Acquired	12839	Direct
2015-06-15	Common Stock	A	668	—	Acquired	13507	Direct
2025-06-16	Common Stock	S	642	$97.118	Disposed	12865	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-06-15	Restricted Stock Units - 5	$	M	793	Disposed		Common Stock (793)	Direct

Footnotes

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

F2: RSUs the vested 1/3 on June 15, 2023 and each of the next two anniversary dates

F3: Not Applicable

F4: Shares represent common stock of Mesa Labs issued upon release of performance share units issued under the FY23 performance share unit program.