Mesa Laboratories Inc (MLAB) Insider Trading
- $2,566,107.35
- $70,071,838.17
- March 10, 2026
- John James Sullivan
| Trader Name | Date | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|---|
| Sept. 8, 2015 | Director | 1,000 | $110.39 | Sell | $110,390.00 | |
| Aug. 17, 2015 | Director | 1,937 | $116.50 | Sell | $225,660.50 | |
| March 14, 2014 | Director | 5,000 | $90.04 | Sell | $450,200.00 | |
| Feb. 27, 2014 | Insider | 1,000 | $87.68 | Sell | $87,680.00 | |
| Feb. 25, 2014 | CEO | 10,000 | $87.01 | Sell | $870,100.00 | |
| Dec. 9, 2013 | Insider | 4,825 | $73.68 | Sell | $355,506.00 | |
| Nov. 15, 2013 | Director | 13,476 | $71.33 | Sell | $961,243.08 | |
| Nov. 14, 2013 | Director | 6,524 | $71.33 | Sell | $465,356.92 | |
| Aug. 19, 2013 | CEO | 6,000 | $64.87 | Sell | $389,220.00 | |
| Aug. 14, 2013 | CEO | 6,000 | $61.92 | Sell | $371,520.00 | |
| March 5, 2013 | Director | 30,000 | $52.75 | Sell | $1,582,500.00 | |
| Dec. 27, 2012 | CFO | 17,054 | $48.50 | Sell | $827,119.00 |
Insiders are both buying and selling Mesa Laboratories Inc stock.
The insider traders at Mesa Laboratories Inc are: John James Sullivan, John Sakys, H Stuart Campbell, David M Kelly, Robert V Dwyer, Evan Guillemin, John Bradley Schmieder, Brian David Archbold, Gary M Owens, Glenn E Adriance, Gregory Dinoia, Seg Ventures, Llc, Michael T Brooks, Shannon Hall, Shiraz Shabanali Ladiwala, Steven W Peterson, Luke R Schmieder, Mark Christopher Capone, and R Tony Tripeny
The most active insider trader at Mesa Laboratories Inc is John James Sullivan with 27 trades.
John James Sullivan has sold the most Mesa Laboratories Inc stock with a total value of $20,565,599.22.
Seg Ventures, Llc has bought the most Mesa Laboratories Inc stock with a total value of $2,559,600.00.
The most recent insider trade for Mesa Laboratories Inc was on March 10, 2026.
The single biggest insider buy for Mesa Laboratories Inc was from Seg Ventures, Llc with a total value of $990,000.00 on Dec. 21, 2018.
The single biggest insider sell for Mesa Laboratories Inc was from Evan Guillemin with a total value of $3,190,800.00 on Dec. 10, 2018.