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MESA LABORATORIES INC /CO/ insider trading

MLABNASDAQ
$132.55+3.25 (+2.51%)as of Oct 2, 2026

“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.” — Peter Lynch

Insider Trading vs Stock Price

Insider Trading vs Stock Price data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+86.1%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
DateCategoryPersonRoleActionAmountChange in holding
Open market purchase
Open market sell
Marker size reflects transaction size.

Net dollar flow · Buy / Sell balance

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Key players

  • JJJohn James SullivanDirector1.1746%of company
  • GMGary M. OwensPresident and CEO1.1461%of company
  • JVJohn V. SakysCFO0.3545%of company
  • SSShiraz Shabanali LadiwalaDirector0.2204%of company
  • TRTripeny R. TonyDirector0.1623%of company
  • JSJennifer Sadie AlltoftDirector0.1369%of company
  • SKSiddhartha KadiaPresident and CEO0.1268%of company
  • SHShannon HallDirector0.1246%of company
  • BDBrian David ArchboldSVP Operations0.114%of company
  • MCMark Christopher CaponeDirector0.111%of company

AI Activity Analysis

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Insider activity

Fromto
CompanyInsider / roleActionΔOwnAvg priceAmount
MLABJohn James SullivanDirectorOpen market sell$800K-10.1%$112.80$800KAug 13, 2026Aug 17, 2026
MLABSiddhartha KadiaPresident and CEOOpen market purchase$800KNot reported$112.80$800KAug 13, 2026Aug 17, 2026
MLABTripeny R. TonyDirectorOpen market purchase$102K+16.7%$113.69$102KAug 13, 2026Aug 17, 2026
MLABLyndsey Elizabeth CrennenCAOOpen market sell$39.6K-18.0%$89.50$39.6KJun 22, 2026Jun 23, 2026
MLABBrian David ArchboldSVP OperationsOpen market sell$225K-28.3%$89.50$225KJun 22, 2026Jun 23, 2026
MLABJohn V. SakysCFOOpen market sell$253K-12.5%$89.50$253KJun 22, 2026Jun 23, 2026
MLABBrian David ArchboldSVP OperationsOpen market sell$117K-23.7%$101.27$117KJun 16, 2026Jun 17, 2026
MLABLyndsey Elizabeth CrennenCAOOpen market sell$11.9K-7.4%$101.27$11.9KJun 16, 2026Jun 17, 2026
MLABJohn V. SakysCFOOpen market sell$124K-6.9%$101.27$124KJun 16, 2026Jun 17, 2026
MLABShiraz Shabanali LadiwalaDirectorOpen market purchase$253K+69.7%$72.23$253KMar 10, 2026Mar 10, 2026
MLABMark Christopher CaponeDirectorOpen market purchase$99.3K+61.1%$76.35$99.3KMar 10, 2026Mar 10, 2026
MLABTripeny R. TonyDirectorOpen market purchase$99.9K+32.2%$76.00$99.9KMar 10, 2026Mar 10, 2026
End of history · 12 transactions
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