(MLAB)

Role: SVP Operations
Issuer symbol: MLAB
Report date: 15 Jun 2025
Net transaction value: -$45,840
Form type: 4
Accepted by SEC: 18 Jun 2025, 11:13:32 UTC
Previous filing: 11 Jun 2025
Next filing: 20 Jun 2025
SEC filing: View on sec.gov
Reporting owner signature: John Sakys under Power of Attorney by Brian Archbold

Key filing fact

Brian David Archbold filed Form 4 for MESA LABORATORIES INC /CO/ (MLAB) on 18 Jun 2025.

Key facts

This page summarizes Brian David Archbold's Form 4 filing for MESA LABORATORIES INC /CO/ (MLAB).
4 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 18 Jun 2025, 11:13.

Change

Previous filing in this sequence was filed on 11 Jun 2025.
Current net transaction value: -$45,840.

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.

See Original Filing

Reporting Owners (1)

CIK 0001776947 Primary reporting owner

Archbold Brian David

Relationship: SVP Operations
Address: 12100 W. 6TH AVENUE, LAKEWOOD
Signature: John Sakys under Power of Attorney by Brian Archbold
Signature date: 18 Jun 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: +535
Change %
Price: $0.000000
Shares after: 535
Date: 15 Jun 2025
Ownership: Direct

MLAB transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +495
Change %: +93%
Price: $0.000000
Shares after: 1,030
Date: 15 Jun 2025
Ownership: Direct
Footnotes: F4

MLAB transaction

Common Stock

Sale

Transaction value: $45,840
Shares: -472
Change %: -46%
Price: $97.12
Shares after: 558
Date: 16 Jun 2025
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MLAB transaction Derivative

Restricted Stock Units - 6

Options Exercise

Transaction value: $0
Shares: -535
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 15 Jun 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 535
Exercise price
Footnotes: F1, F2, F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

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

Footnote F2

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

Footnote F3

Not Applicable

Footnote F4

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