(MLAB)

Reporting relationship: President and CEO
Issuer ticker: MLAB
Reported as of: 27 Oct 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 28 Oct 2025, 15:08:05 UTC
Prior SEC filing: 24 Jun 2025
Next SEC filing: 02 Apr 2026
Source filing: View source filing
Reporting owner signature: John Sakys under Power of Attorney by Gary Owens

Key filing fact

Gary M. Owens filed Form 4 for MESA LABORATORIES INC /CO/ (MLAB) on 28 Oct 2025.

Key facts

This page summarizes Gary M. Owens's Form 4 filing for MESA LABORATORIES INC /CO/ (MLAB).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 28 Oct 2025, 15:08.

Change

Previous filing in this sequence was filed on 24 Jun 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001700671 Primary reporting owner

Owens Gary M

Relationship: President and CEO
Address: 12100 W. 6TH AVENUE, LAKEWOOD
Signature: John Sakys under Power of Attorney by Gary Owens
Signature date: 28 Oct 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MLAB transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +11,558
Change %: +22%
Price: $0.000000
Shares after: 64,135
Date: 27 Oct 2025
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Shares represent common stock of Mesa Labs release of performance share units that were issued on October 28,2021 as a special grant to encourage continued performance and long-term retention. The PSUs vest 1/3 on October 27, 2024 and each of the next two anniversary dates.