ARCHBOLD BRIAN DAVID

PrivateCIK: 1776947
Location

LAKEWOOD, CO

ARCHBOLD BRIAN DAVID (SVP of Continuous Improvement) sold 28.3% of their position (2.52K shares) of MESA LABORATORIES INC /CO/ on the open market

Open‑market sale worth $225.2K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderARCHBOLD BRIAN DAVIDCIK 1776947
Officer· SVP of Continuous Improvement
Since Jun 2019
-657.00
Net shares
Net seller
$225.2K
Total sold
1
Open market trades
0B · 1S
6
Total transactions
5.18K acquired · 5.84K disposed
Non-Derivative Transactions4

Common Stock

Direct
M · Option Exercise

Shares

+844.00

Price / share

$95.10

Trade value

$80.26K

% of position

22.7%
6/18/2026
3.71K4.55K

Common Stock

Direct
M · Option Exercise

Shares

+2.48K

Price / share

$95.10

Trade value

$235.85K

% of position

54.5%
6/18/2026
4.55K7.03K

Common Stock

Direct
A · Award

Shares

+1.86K

Price / share

$95.10

Trade value

$176.79K

% of position

26.4%
6/18/2026
7.03K8.89K

Common Stock

Direct
S · Sale

Shares

2.52K

Price / share

$89.50

Trade value

$225.19K

% of position

28.3%
6/22/2026
8.89K6.38K
Total

Net shares

+2.67K

Net value

$267.72K

Derivative Transactions2

Restricted Stock Units - 7

Direct
M · Option Exercise
Converts to

Common Stock

844.00 shares

Shares

844.00

Strike price

Held after

0.00

Exercisable

6/18/2026

Restricted Stock Units - 8

Direct
M · Option Exercise
Converts to

Common Stock

2.48K shares

Shares

2.48K

Strike price

Held after

2.48K

Exercisable

6/18/2026