Brian Archbold - Jun 10, 2025 Form 4 Insider Report for MESA LABORATORIES INC /CO/ (MLAB)

Role
SVP Operations
Signature
John Sakys under Power of Attorney by Brian Archbold
Stock symbol
MLAB
Transactions as of
Jun 10, 2025
Transactions value $
$0
Form type
4
Date filed
6/11/2025, 10:23 AM
Previous filing
Sep 16, 2024
Next filing
Jun 18, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Archbold Brian David SVP Operations 12100 W. 6TH AVENUE, LAKEWOOD John Sakys under Power of Attorney by Brian Archbold 2025-06-11 0001776947

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MLAB Non Qualified Stock Option Expiration of short derivative position $0 -2.13K -14.49% $0.00 12.6K Jun 10, 2025 Common Stock 2.13K $203.54 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 NSOs that vest 1/4 on each anniversary date of the June 10, 2019 grant date
F2 NSOs that expired unexercised on June 10, 2025