Archbold Brian David Insider Trades & Stock Holdings

SVP Operations · Mesa Laboratories, Inc. · Latest filing Jun 22, 2026

Archbold Brian David, SVP Operations at Mesa Laboratories, Inc. has 8 Form 4 trades on file since Jun 15, 2026. Open-market activity: 0 purchases ($0) and 2 sales ($341.74K), net -$341.74K. Latest filing: disposed of 2.52K shares of $MLAB on Jun 22, 2026 at $89.50.

Trades on file

8

Open-market bought

$0

Open-market sold

$341.74K

Net open-market

-$341.74K

Latest filing

Jun 22, 2026

All insider trades by Archbold Brian David

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Jun 22, 2026	$MLAB	Sell (Open-market sale)	2.52K	$89.50	$225.18K			+6.8%	+5.7%		SVP Operations		Read
Jun 18, 2026	$MLAB	Sell (Option exercise)	2.48K	$0	—			+3.2%	+1.7%		SVP Operations		Read
Jun 18, 2026	$MLAB	Buy (Option exercise)	3.32K	$95.10	$316.11K			+3.2%	+1.7%		SVP Operations		Read
Jun 16, 2026	$MLAB	Sell (Open-market sale) 10b5-1	1.15K	$101.27	$116.56K			-7.7%	-0.2%		SVP Operations		Read
Jun 15, 2026	$MLAB	Sell (Option exercise)	2.45K	$0	—			-10.4%	-9.0%		SVP Operations		Read
Jun 15, 2026	$MLAB	Sell	1.78K	$0	—			-10.4%	-9.0%		SVP Operations		—
Jun 15, 2026	$MLAB	Buy (Grant or award)	4.33K	$0	—			-10.4%	-9.0%		SVP Operations		Read
Jun 15, 2026	$MLAB	Buy (Grant or award)	4.33K	$0	—			-10.4%	-9.0%		SVP Operations		—

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Archbold Brian David traded

• $MLAB

Frequently asked questions

Has Archbold Brian David been buying or selling stock?

Archbold Brian David has 0 open-market purchases and 2 open-market sales on file, net -$341.74K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Archbold Brian David's latest insider trade?

disposed of 2.52K shares of $MLAB on Jun 22, 2026 at $89.50.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.