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Mesa Laboratories Inc (MLAB) Insider Trading

Total insider buys:
  • $2,114,031.00
Total insider sells:
  • $67,173,220.81
Most recent insider trade:
  • Oct. 28, 2024
Most active insider trader:
  • John James Sullivan
Trader NameDateTitleAmountPriceTypeTotal Value
Dec. 6, 2018Director1,700$210.94Sell$358,598.00
Dec. 4, 2018Director2,000$218.74Sell$437,480.00
Oct. 12, 2018Director30,000$21.52Buy$645,600.00
Sept. 13, 2018Director700$190.01Sell$133,007.00
Sept. 10, 2018Director2,700$195.39Sell$527,553.00
Aug. 15, 2018CFO1,000$203.50Sell$203,500.00
June 20, 2018Director5,000$210.03Sell$1,050,150.00
June 15, 2018Director12,000$197.02Sell$2,364,240.00
June 11, 2018Director989$191.17Sell$189,067.13
March 14, 2018Director5,000$144.01Sell$720,050.00
Feb. 16, 2018Director4,000$138.00Sell$552,000.00
Feb. 8, 2018Director3,000$132.27Sell$396,810.00
Aug. 21, 2017Director1,000$130.16Sell$130,160.00
Aug. 18, 2017Director2,000$130.42Sell$260,840.00
Aug. 15, 2017Director2$134.10Sell$268.20
Aug. 11, 2017Director608$134.08Sell$81,520.64
Aug. 10, 2017Director1,000$136.58Sell$136,580.00
Aug. 9, 2017Director1,000$137.61Sell$137,610.00
Aug. 4, 2017Director1,000$143.09Sell$143,090.00
Aug. 3, 2017Director2,000$143.37Sell$286,740.00
June 16, 2017Director11,150$139.46Sell$1,554,979.00
June 12, 2017Director1,000$142.00Sell$142,000.00
June 9, 2017Insider4,000$148.98Sell$595,920.00
March 20, 2017Director2,000$122.94Sell$245,880.00
Feb. 22, 2017Director5,000$125.13Sell$625,650.00
Feb. 21, 2017Insider9,078$124.83Sell$1,133,206.74
Feb. 13, 2017CEO5,922$123.99Sell$734,268.78
Feb. 7, 2017Director8,000$121.55Sell$972,400.00
Feb. 7, 2017Insider8,070$124.15Sell$1,001,890.50
Nov. 23, 2016Insider3,567$135.93Sell$484,862.31
Nov. 17, 2016CFO1,000$127.14Sell$127,140.00
Oct. 21, 2016Director4,000$119.02Sell$476,080.00
Sept. 16, 2016Director3,000$115.03Sell$345,090.00
June 22, 2016CEO4,000$121.63Sell$486,520.00
June 6, 2016Insider3,000$111.74Sell$335,220.00
March 11, 2016Director6,000$86.32Sell$517,920.00
March 7, 2016Director280$90.00Sell$25,200.00
Feb. 24, 2016Director1,532$92.90Sell$142,322.80
Nov. 6, 2015CEO2,400$112.99Sell$271,176.00
Sept. 22, 2015Director150$109.54Buy$16,431.00
Sept. 17, 2015Director2,000$113.00Sell$226,000.00
Sept. 15, 2015Director3,000$111.67Sell$335,010.00
Sept. 11, 2015Director1,000$110.00Sell$110,000.00
Sept. 8, 2015Director1,000$110.39Sell$110,390.00
Aug. 17, 2015Director1,937$116.50Sell$225,660.50
March 14, 2014Director5,000$90.04Sell$450,200.00
Feb. 27, 2014Insider1,000$87.68Sell$87,680.00
Feb. 25, 2014CEO10,000$87.01Sell$870,100.00
Dec. 9, 2013Insider4,825$73.68Sell$355,506.00
Nov. 15, 2013Director13,476$71.33Sell$961,243.08
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  • 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, Robert V Dwyer, David M Kelly, Evan Guillemin, John Bradley Schmieder, Brian David Archbold, Gary M Owens, Glenn E Adriance, Gregory Dinoia, Seg Ventures, Llc, Michael T Brooks, Luke R Schmieder, Shannon Hall, and Steven W Peterson

  • 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 Oct. 28, 2024.

  • 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.