Brian David Archbold - 18 Jun 2025 Form 4 Insider Report for MESA LABORATORIES INC /CO/ (MLAB)

Signature
John Sakys under Power of Attorney from Brian Archbold
Issuer symbol
MLAB
Transactions as of
18 Jun 2025
Net transactions value
+$129,256
Form type
4
Filing time
20 Jun 2025, 17:31:26 UTC
Previous filing
18 Jun 2025
Next filing
25 Jun 2025

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 from Brian Archbold 20 Jun 2025 0001776947

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MLAB Common Stock Options Exercise $237,682 +2,556 +458% $92.99 3,114 18 Jun 2025 Direct
transaction MLAB Common Stock Tax liability $108,426 -1,166 -37% $92.99 1,948 18 Jun 2025 Direct

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 Restricted Stock Units - 8 Options Exercise $0 -2,556 -34% $0.000000 4,960 18 Jun 2025 Common Stock 2,556 Direct F1, F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each RSU represents a contingent right to receive one share of the Issuer's common stock
F2 RSUs that vest 1/3 on June 18, 2025 and each of the next two anniversary dates
F3 Not Applicable