Insider tradingForm 4

MESA LABORATORIES INC /CO/ (MLAB) Insider Trading

3 open-market trades reported since Aug 17, 2026: 2 purchases worth $902K and 1 sales worth $800K.

By insider

Insider	Role	Buys	Bought	Sells	Sold	Latest
Siddhartha Kadia	CEO	1	$800K	0	$0	Aug 17, 2026
John James Sullivan	Director	0	$0	1	$800K	Aug 17, 2026
R. Tony Tripeny	Director	1	$102K	0	$0	Aug 17, 2026

MLAB insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Aug 17	Aug 13	Siddhartha KadiaCEO	CEO (ind.)	▲ BUY	7,093	112.80	$800K	New	Form 4 ↗
Aug 17	Aug 13	John James SullivanDirector	Director	▼ SELL	7,093	112.80	$800K	−29%	Form 4 ↗
Aug 17	Aug 13	R. Tony TripenyDirector	Director	▲ BUY	900	113.69	$102K	+17%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings