$86.77
1.832.15%
At Close: -
$86.77
00.00%
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Mesa Laboratories
MLABNASDAQ
Mesa Laboratories (NASDAQ:MLAB) Stock, Insider Trading Activity
Mesa Laboratories: Insider buying and selling updated today.
Insider Shares Owned
571.694K
Insider Percentage Owned
10.6%
Institutional Shares Held
3.945M
Institutional Percentage Held
73.1%
| Dec 19, 2023 | David Brian Archbold | SVP OPERATIONS | -1.5K | $112.36 | -$168.54K | SELL | -72.89% | 558 | Dec 15 | View |
| Sep 19, 2023 | Bradley John Schmieder | DIRECTOR | -4K | $123.22 | -$492.89K | SELL | -5.99% | 62.76K | Sep 14 - Sep 15 | View |
| Sep 14, 2023 | Bradley John Schmieder | DIRECTOR | -3K | $123.32 | -$369.97K | SELL | -4.30% | 66.76K | Sep 13 | View |
| Sep 05, 2023 | Gary Owens | PRESIDENT AND CEO | 0 | $139.62 | -$12.80K | SELL-OPTIONS | 0.00% | 30.032K | Sep 01 | View |
| Mar 27, 2023 | John Sakys | CFO | 0 | $137.45 | -$296.65K | SELL-OPTIONS | 0.00% | 9.796K | Mar 22 - Mar 24 | View |
| Mar 16, 2023 | John Sakys | CFO | 0 | $118.14 | -$95.15K | SELL-OPTIONS | 0.00% | 9.796K | Mar 15 | View |
| Mar 09, 2023 | John Sakys | CFO | 0 | $120.27 | -$39.76K | SELL-OPTIONS | 0.00% | 9.796K | Mar 09 | View |
| Feb 09, 2023 | John Sakys | CFO | 0 | $118.06 | -$132.42K | SELL-OPTIONS | 0.00% | 9.796K | Feb 09 | View |
| Jan 25, 2023 | John Sakys | CFO | 0 | $140.38 | -$293.22K | SELL-OPTIONS | 0.00% | 9.796K | Jan 23 | View |
| Jan 17, 2023 | Bradley John Schmieder | DIRECTOR | 0 | $147.78 | -$136.76K | SELL-OPTIONS | 0.00% | 68.976K | Jan 13 | View |
| Dec 09, 2022 | Shannon Hall | DIRECTOR | -230 | $174.97 | -$40.24K | SELL | -19.38% | 957 | Dec 08 | View |
| Nov 21, 2022 | Bradley John Schmieder | DIRECTOR | -2.5K | $175.45 | -$438.63K | SELL | -3.50% | 68.976K | Nov 11 | View |
| Aug 19, 2022 | Evan Guillemin | DIRECTOR | -1.012K | $147.89 | -$457.01K | SELL | -3.40% | 28.776K | Aug 18 | View |
| Aug 17, 2022 | John Sakys | CFO | 0 | $135.56 | -$260.01K | SELL-OPTIONS | 0.00% | 8.778K | Aug 15 - Aug 16 | View |
| Aug 09, 2022 | Tony Tripeny | DIRECTOR | 500 | $200.00 | $100.00K | BUY | ∞ | 500 | Aug 09 | View |
| Jun 22, 2022 | Gary Owens | PRESIDENT AND CEO | 3.244K | $187.44 | -$467.84K | SELL-OPTIONS | 17.63% | 21.64K | Jun 17 - Jun 21 | View |
| Jun 22, 2022 | David Brian Archbold | SVP OPERATIONS | 659 | $187.47 | -$102.55K | SELL-OPTIONS | 427.92% | 813 | Jun 17 - Jun 21 | View |
| Jun 22, 2022 | GREGORY DINOIA | SVP COMMERCIAL | 941 | $187.59 | -$136.57K | SELL-OPTIONS | 34.94% | 3.634K | Jun 17 - Jun 21 | View |
| Jun 22, 2022 | John Sakys | CFO | 1.164K | $187.71 | -$168.00K | SELL-OPTIONS | 15.29% | 8.778K | Jun 17 - Jun 21 | View |
| Jun 13, 2022 | James John Sullivan | DIRECTOR | 1.001K | $139.16 | -$641.71K | SELL-OPTIONS | 1.86% | 54.858K | Jun 07 - Jun 09 | View |
| Apr 22, 2022 | John Sakys | CFO | 0 | $151.15 | -$14.30K | SELL-OPTIONS | 0.00% | 7.614K | Apr 20 | View |
| Mar 25, 2022 | John Sakys | CFO | 0 | $151.54 | -$319.01K | SELL-OPTIONS | 0.00% | 7.514K | Mar 23 - Mar 24 | View |
| Feb 16, 2022 | James John Sullivan | DIRECTOR | 0 | $176.64 | -$859.54K | SELL-OPTIONS | 0.00% | 52.857K | Feb 15 | View |
| Jan 04, 2022 | Bradley John Schmieder | DIRECTOR | 0 | $212.77 | -$229.99K | SELL-OPTIONS | 0.00% | 71.015K | Jan 03 | View |
| Dec 15, 2021 | David Brian Archbold | SVP OPERATIONS | 0 | $266.82 | -$193.12K | SELL-OPTIONS | 0.00% | 154 | Dec 14 | View |
| Dec 10, 2021 | John Sakys | CFO | 0 | $210.90 | -$400.27K | SELL-OPTIONS | 0.00% | 7.514K | Dec 10 | View |
| Dec 06, 2021 | Evan Guillemin | DIRECTOR | 0 | $201.09 | -$508.17K | SELL-OPTIONS | 0.00% | 29.758K | Dec 02 | View |
| Nov 16, 2021 | James John Sullivan | DIRECTOR | 0 | $202.56 | -$1.10M | SELL-OPTIONS | 0.00% | 51.857K | Nov 15 | View |
| Nov 12, 2021 | John Sakys | CFO | 0 | $207.45 | -$219.34K | SELL-OPTIONS | 0.00% | 7.514K | Nov 11 | View |
| Nov 09, 2021 | DAVID KELLY | DIRECTOR | 0 | $191.29 | -$4.78K | SELL-OPTIONS | 0.00% | 2.6K | Nov 08 | View |
| Nov 09, 2021 | GREGORY DINOIA | SVP COMMERCIAL | -280 | $323.72 | -$90.64K | SELL | -9.42% | 2.693K | Nov 08 | View |
| Oct 25, 2021 | John Sakys | CFO | 0 | $203.82 | -$424.16K | SELL-OPTIONS | 0.00% | 7.514K | Oct 20 | View |
| Oct 04, 2021 | James John Sullivan | DIRECTOR | -1.25K | $304.48 | -$380.60K | SELL | -2.35% | 51.857K | Oct 01 | View |
| Sep 10, 2021 | John Sakys | CFO | 0 | $179.95 | -$252.71K | SELL-OPTIONS | 0.00% | 7.514K | Sep 10 | View |
| Sep 01, 2021 | James John Sullivan | DIRECTOR | -1.25K | $268.22 | -$335.28K | SELL | -2.30% | 53.107K | Sep 01 | View |
| Sep 01, 2021 | DAVID KELLY | DIRECTOR | -603 | $267.29 | -$161.18K | SELL | -18.83% | 2.6K | Aug 31 | View |
| Aug 17, 2021 | James John Sullivan | DIRECTOR | 0 | $180.93 | -$947.33K | SELL-OPTIONS | 0.00% | 53.357K | Aug 16 | View |
| Aug 13, 2021 | John Sakys | CFO | 0 | $182.43 | -$185.46K | SELL-OPTIONS | 0.00% | 7.514K | Aug 12 | View |
| Aug 12, 2021 | Bradley John Schmieder | DIRECTOR | -800 | $278.06 | -$222.45K | SELL | -1.12% | 70.707K | Aug 11 | View |
| Aug 12, 2021 | David Brian Archbold | SVP CONTINUOUS IMPROVEMENT | -639 | $280.03 | -$178.94K | SELL | -80.58% | 154 | Aug 09 | View |
| Aug 02, 2021 | James John Sullivan | DIRECTOR | -1.25K | $290.47 | -$363.09K | SELL | -2.30% | 53.049K | Aug 02 | View |
| Jul 19, 2021 | Evan Guillemin | DIRECTOR | -720 | $282.18 | -$203.17K | SELL | -2.39% | 29.45K | Jul 16 | View |
| Jul 13, 2021 | John Sakys | CFO | 0 | $184.23 | -$189.07K | SELL-OPTIONS | 0.00% | 7.514K | Jul 12 | View |
| Jul 06, 2021 | John Sakys | CFO | 0 | $178.37 | -$177.34K | SELL-OPTIONS | 0.00% | 7.514K | Jul 01 | View |
| Jul 06, 2021 | James John Sullivan | DIRECTOR | -1.25K | $267.44 | -$334.30K | SELL | -2.25% | 54.299K | Jul 01 | View |
| Jun 21, 2021 | David Brian Archbold | SVP CONTINUOUS IMPROVEMENT | -400 | $256.56 | -$102.62K | SELL | -33.53% | 793 | Jun 17 | View |
| Jun 17, 2021 | Bradley John Schmieder | DIRECTOR | -505 | $262.27 | -$132.45K | SELL | -0.70% | 71.507K | Jun 16 | View |
| Jun 17, 2021 | John Sakys | CFO | 2.557K | $255.67 | -$541.76K | GRANT | 51.58% | 7.514K | Jun 15 - Jun 16 | View |
| Jun 17, 2021 | Gary Owens | PRESIDENT AND CEO | 7.903K | $255.67 | -$1.67M | GRANT | 75.32% | 18.396K | Jun 15 - Jun 16 | View |
| Jun 17, 2021 | GREGORY DINOIA | SVP COMMERICIAL | 1.589K | $255.67 | -$309.62K | GRANT | 114.81% | 2.973K | Jun 15 - Jun 16 | View |
| Jun 17, 2021 | David Brian Archbold | SVP CONTINUOUS IMPROVEMENT | 624 | $257.06 | -$343.43K | GRANT | 109.67% | 1.193K | Jun 15 - Jun 16 | View |
| Jun 16, 2021 | Evan Guillemin | DIRECTOR | -720 | $256.36 | -$184.58K | SELL | -2.33% | 30.17K | Jun 16 | View |
| Jun 09, 2021 | James John Sullivan | DIRECTOR | 0 | $173.94 | -$874.80K | SELL-OPTIONS | 0.00% | 54.208K | Jun 08 | View |
| Jun 08, 2021 | Gary Owens | PRESIDENT AND CEO | -1.35K | $264.00 | -$356.40K | SELL | -13.69% | 8.513K | Jun 07 | View |
| Jun 07, 2021 | DAVID KELLY | DIRECTOR | 0 | $180.47 | -$135.83K | SELL-OPTIONS | 0.00% | 2.6K | Jun 04 | View |
| Jun 07, 2021 | Gregory DiNoia | SVP COMMERCIAL | 0 | $201.33 | -$63.65K | SELL-OPTIONS | 0.00% | 840 | Jun 04 | View |
| Jun 04, 2021 | James John Sullivan | DIRECTOR | -2.215K | $251.46 | -$556.98K | SELL | -3.93% | 54.208K | Jun 01 | View |
| May 18, 2021 | Evan Guillemin | DIRECTOR | -720 | $244.25 | -$175.86K | SELL | -2.30% | 30.595K | May 17 | View |
| May 07, 2021 | James John Sullivan | DIRECTOR | -300 | $250.23 | -$75.07K | SELL | -0.53% | 56.423K | May 05 - May 06 | View |
| May 05, 2021 | James John Sullivan | DIRECTOR | -735 | $250.14 | -$183.85K | SELL | -1.28% | 56.723K | May 04 | View |
| Apr 19, 2021 | Evan Guillemin | DIRECTOR | -720 | $253.77 | -$182.71K | SELL | -2.25% | 31.315K | Apr 16 | View |
| Apr 05, 2021 | James John Sullivan | DIRECTOR | -500 | $250.76 | -$125.38K | SELL | -0.86% | 57.458K | Apr 05 | View |
| Mar 16, 2021 | Evan Guillemin | DIRECTOR | -720 | $269.48 | -$194.03K | SELL | -2.20% | 32.035K | Mar 16 | View |
| Mar 15, 2021 | John Sakys | CFO | 0 | $165.02 | -$494.12K | SELL-OPTIONS | 0.00% | 4.35K | Mar 12 | View |
| Mar 11, 2021 | David Brian Archbold | SVP CONTINUOUS IMPROVEMENT | -78 | $200.44 | -$41.89K | SELL | -33.62% | 154 | Mar 10 - Mar 11 | View |
| Mar 02, 2021 | James John Sullivan | DIRECTOR | -1.25K | $273.94 | -$342.43K | SELL | -2.11% | 57.958K | Mar 01 | View |
| Feb 24, 2021 | GREGORY DINOIA | SVP COMMERICIAL | -280 | $276.75 | -$77.49K | SELL | -25.00% | 840 | Feb 23 | View |
| Feb 17, 2021 | Evan Guillemin | DIRECTOR | -3.6K | $281.52 | -$1.01M | SELL | -9.90% | 32.755K | Feb 16 | View |
| Feb 10, 2021 | Bradley John Schmieder | DIRECTOR | -1.75K | $278.23 | -$486.90K | SELL | -2.38% | 71.717K | Feb 10 | View |
| Feb 01, 2021 | James John Sullivan | DIRECTOR | -1.25K | $277.67 | -$347.09K | SELL | -2.07% | 59.208K | Feb 01 | View |
| Jan 12, 2021 | Bradley John Schmieder | DIRECTOR | -477 | $285.23 | -$136.05K | SELL | -0.65% | 73.467K | Jan 12 | View |
| Jan 07, 2021 | John Sakys | CFO | 0 | $189.85 | -$3.20K | SELL-OPTIONS | 0.00% | 3.35K | Jan 06 | View |
| Jan 04, 2021 | James John Sullivan | DIRECTOR | -1.25K | $280.82 | -$351.02K | SELL | -2.03% | 60.458K | Jan 04 | View |
| Dec 14, 2020 | DAVID KELLY | — | -250 | $283.18 | -$70.80K | SELL | -9.62% | 2.35K | Dec 11 | View |
| Dec 01, 2020 | James John Sullivan | — | -1.25K | $275.22 | -$344.03K | SELL | -1.99% | 61.708K | Dec 01 | View |
| Nov 18, 2020 | John Sakys | — | 0 | $189.85 | -$197.10K | OPTION EXERCISE | 0.00% | 3.35K | Nov 17 | View |
| Nov 18, 2020 | DAVID KELLY | — | -687 | $170.91 | -$198.46K | OPTION EXERCISE | -20.90% | 2.6K | Nov 16 | View |
| Nov 16, 2020 | Evan Guillemin | — | 0 | $158.05 | -$476.63K | OPTION EXERCISE | 0.00% | 35.878K | Nov 13 | View |
| Nov 13, 2020 | Evan Guillemin | — | 0 | $161.02 | -$214.22K | OPTION EXERCISE | 0.00% | 35.878K | Nov 12 | View |
| Nov 12, 2020 | James John Sullivan | — | -1.25K | $272.36 | -$340.45K | SELL | -1.96% | 62.481K | Nov 11 | View |
| Nov 10, 2020 | David Brian Archbold | — | 0 | $237.82 | -$36.55K | OPTION EXERCISE | 0.00% | 232 | Nov 09 | View |
| Oct 09, 2020 | John Sakys | — | 0 | $183.30 | -$176.34K | OPTION EXERCISE | 0.00% | 3.35K | Oct 08 | View |
| Oct 09, 2020 | Gary Owens | — | -1K | $275.62 | -$275.62K | SELL | -9.21% | 9.863K | Oct 07 - Oct 08 | View |
| Oct 06, 2020 | Gary Owens | — | -1K | $265.00 | -$265.00K | SELL | -8.43% | 10.863K | Oct 06 | View |
| Oct 05, 2020 | Gregory DiNoia | — | -62 | $201.20 | -$47.87K | OPTION EXERCISE | -5.25% | 1.12K | Oct 02 | View |
| Sep 17, 2020 | Gary Owens | — | 863 | $246.81 | -$211.52K | TAX | 7.85% | 11.863K | Sep 15 - Sep 16 | View |
| Sep 08, 2020 | Greg DiNoia | — | -280 | $243.55 | -$68.19K | SELL | -19.15% | 1.182K | Sep 04 | View |
| Sep 04, 2020 | John Sakys | — | -50 | $149.86 | -$202.28K | GIFT | -1.47% | 3.35K | Sep 01 - Sep 02 | View |
| Sep 02, 2020 | DAVID KELLY | — | 0 | $185.99 | -$91.69K | OPTION EXERCISE | 0.00% | 2.81K | Aug 28 - Aug 31 | View |
| Aug 18, 2020 | DAVID KELLY | — | 0 | $172.75 | -$119.95K | OPTION EXERCISE | 0.00% | 2.81K | Aug 17 | View |
| Aug 18, 2020 | Greg DiNoia | — | -52 | $224.62 | -$45.79K | OPTION EXERCISE | -3.43% | 1.462K | Aug 17 | View |
| Aug 17, 2020 | John Sakys | — | -100 | $146.36 | -$195.28K | GIFT | -2.86% | 3.4K | Aug 14 - Aug 17 | View |
| Aug 14, 2020 | Bradley John Schmieder | — | 0 | $159.16 | -$249.03K | OPTION EXERCISE | 0.00% | 73.467K | Aug 12 | View |
| Aug 13, 2020 | David Brian Archbold | — | -38 | $194.49 | -$72.22K | OPTION EXERCISE | -14.07% | 232 | Aug 10 | View |
| Aug 13, 2020 | DAVID KELLY | — | 0 | $162.31 | -$240.45K | OPTION EXERCISE | 0.00% | 2.81K | Aug 10 | View |
| Feb 27, 2020 | John Sullivan | — | 1.584K | $161.93 | -$212.83K | OPTION EXERCISE | 2.22% | 72.931K | Feb 27 | View |
| Feb 27, 2020 | John Sullivan | — | 0 | $160.80 | -$1.96M | OPTION EXERCISE | 0.00% | 71.347K | Feb 25 - Feb 26 | View |
| Feb 21, 2020 | Brian Archbold | — | -123 | $268.19 | -$32.99K | SELL | -34.65% | 232 | Feb 21 | View |
| Feb 19, 2020 | John Schmieder | — | -1.8K | $266.46 | -$479.63K | SELL | -2.39% | 73.437K | Feb 19 | View |
| Feb 13, 2020 | Robert Dwyer | — | -7.5K | $258.64 | -$1.94M | SELL | -17.36% | 35.696K | Feb 12 - Feb 13 | View |
| Dec 16, 2019 | Evan Guillemin | DIRECTOR | -12.5K | $251.31 | -$1.88M | SELL | -25.85% | 35.848K | Dec 16 | View |
| Nov 26, 2019 | John B. Schmieder | DIRECTOR | -700 | $238.06 | -$166.64K | SELL | -0.92% | 75.119K | Nov 25 | View |
FAQ
Is insider trading legal?
Insider trading is legal so long as the insiders report those trades to the SEC. Illegal securities trading occurs when the insider is violating a fiduciary duty or fails to report their trades.
What are some examples of market manipulation?
Insider trading, pump and dump schemes, front running and wash trades are all examples of market manipulation. Investors who track insider asset movement should think carefully about why these insiders are trading their stocks before moving forward.
Browse insider trades on all stocks.