Company · CIK 0000724004 · SIC 3823 — Industrial Instruments For Measurement, Display, and Control · Nasdaq
MESA LABORATORIES INC /CO/ · MLAB
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 15, 2026 MForm 4 → | Aug 17, 7:40 pm EDT | Mark Christopher CaponeDirector | 2,784 | — | — | 6,213 | — | |
| Aug 15, 2026 MForm 4 → | Aug 17, 7:32 pm EDT | Jennifer Sadie AlltoftDirector | 2,784 | — | — | 7,662 | — | |
| Aug 15, 2026 MForm 4 → | Aug 17, 5:55 pm EDT | Shiraz Shabanali LadiwalaDirector | 3,810 | — | — | 12,333 | — | |
| Aug 15, 2026 MForm 4 → | Aug 17, 5:46 pm EDT | Shannon HallDirector | 2,784 | — | — | 6,973 | — | |
| Aug 15, 2026 MForm 4 → | Aug 17, 5:30 pm EDT | R Tony TripenyDirector | 2,784 | — | — | 9,082 | — | |
| Aug 15, 2026 MForm 4 → | Aug 17, 5:01 pm EDT | John James SullivanDirector | 2,784 | — | — | 20,618 | — | |
| Aug 13, 2026 SForm 4 → | Aug 17, 12:18 pm EDT | John James SullivanDirector | 7,093 | $112.80 | $800,090 | 17,834 | −28.5% | |
| Aug 13, 2026 PForm 4 → | Aug 17, 11:49 am EDT | Siddhartha KadiaPresident and CEO | 7,093 | $112.80 | $800,090 | 7,093 | — | |
| Aug 13, 2026 PForm 4 → | Aug 17, 11:27 am EDT | R Tony TripenyDirector | 900 | $113.69 | $102,321 | 6,298 | +16.7% | |
| Jun 22, 2026 SForm 4 → | Jun 23, 1:34 pm EDT | Lyndsey Elizabeth CrennenCAO | 442 | $89.50 | $39,560 | 2,020 | −18.0% | |
| Jun 22, 2026 SForm 4 → | Jun 23, 1:02 pm EDT | Brian David ArchboldSVP Operations | 2,516 | $89.50 | $225,187 | 6,377 | −28.3% | |
| Jun 22, 2026 SForm 4 → | Jun 23, 12:23 pm EDT | John SakysCFO | 2,827 | $89.50 | $253,022 | 19,785 | −12.5% | |
| Jun 18, 2026 AMForm 4 → | Jun 23, 1:34 pm EDT | Lyndsey Elizabeth CrennenCAO | 989 | $95.10 | $94,054 | 2,462 | — | |
| Jun 18, 2026 AMForm 4 → | Jun 23, 1:02 pm EDT | Brian David ArchboldSVP Operations | 5,183 | $95.10 | $492,903 | 8,893 | — | |
| Jun 18, 2026 AMForm 4 → | Jun 23, 12:23 pm EDT | John SakysCFO | 6,074 | $95.10 | $577,637 | 22,612 | — | |
| Jun 16, 2026 SForm 4 → | Jun 17, 12:23 pm EDT | Brian David ArchboldSVP Operations | 1,151 | $101.27 | $116,558 | 3,710 | −23.7% | 10b5-1 |
| Jun 16, 2026 SForm 4 → | Jun 17, 12:19 pm EDT | Lyndsey Elizabeth CrennenCAO | 118 | $101.27 | $11,950 | 1,473 | −7.42% | 10b5-1 |
| Jun 16, 2026 SForm 4 → | Jun 17, 12:09 pm EDT | John SakysCFO | 1,223 | $101.27 | $123,850 | 16,538 | −6.89% | 10b5-1 |
| Jun 15, 2026 MForm 4 → | Jun 16, 2:44 pm EDT | Brian David ArchboldSVP Operations | 2,454 | $104.08 | $255,412 | 4,861 | — | |
| Jun 15, 2026 MForm 4 → | Jun 16, 2:15 pm EDT | John SakysCFO | 2,717 | $104.08 | $282,785 | 17,761 | — | |
| Feb 20, 2019 SForm 4 → | Feb 20, 6:30 pm EST | Evan GuilleminDirector | 1,746 | $232.31 | $405,613 | 48,468 | −3.48% | plan? |
| Feb 20, 2019 MForm 4 → | Feb 20, 6:30 pm EST | Evan GuilleminDirector | 1,746 | $25.56 | $44,628 | 50,214 | — | plan? |
| Feb 19, 2019 SForm 4 → | Feb 20, 5:44 pm EST | Robert V DwyerDirector | 342 | $232.00 | $79,344 | 53,571 | −0.63% | plan? |
| Feb 15, 2019 SForm 4 → | Feb 20, 9:30 am EST | Robert V DwyerDirector | 5,575 | $232.00 | $1,293,400 | 53,913 | −9.37% | plan? |
| Feb 11, 2019 SForm 4 → | Feb 13, 7:24 pm EST | Evan GuilleminDirector | 3,254 | $230.70 | $750,687 | 48,468 | −6.29% | plan? |
| Feb 11, 2019 MForm 4 → | Feb 13, 7:24 pm EST | Evan GuilleminDirector | 3,254 | $17.68 | $57,522 | 51,722 | — | plan? |
| Feb 8, 2019 SForm 4 → | Feb 12, 6:18 pm EST | Robert V DwyerDirector | 4,083 | $235.03 | $959,623 | 59,488 | −6.42% | plan? |
| Feb 8, 2019 SForm 4 → | Feb 8, 6:59 pm EST | John Bradley SchmiederDirector | 2,500 | $232.70 | $581,750 | 75,939 | −3.19% | plan? |
| Feb 6, 2019 SForm 4 → | Feb 7, 11:20 am EST | David M KellyDirector | 2,000 | $229.62 | $459,240 | 2,900 | −40.8% | plan? |
| Feb 6, 2019 MForm 4 → | Feb 7, 11:20 am EST | David M KellyDirector | 2,000 | $51.18 | $102,350 | 4,900 | — | plan? |
| Dec 6, 2018 SForm 4 → | Dec 10, 10:12 am EST | David M KellyDirector | 1,700 | $210.94 | $358,598 | 2,900 | −37.0% | plan? |
| Dec 6, 2018 MForm 4 → | Dec 10, 10:12 am EST | David M KellyDirector | 1,700 | $26.69 | $45,370 | 4,600 | — | plan? |
| Dec 4, 2018 SForm 4 → | Dec 11, 11:17 am EST | Evan GuilleminDirector | 15,000 | $212.72 | $3,190,780 | 48,468 | −23.6% | plan? late |
| Dec 3, 2018 GForm 4 → | Dec 10, 1:22 pm EST | John Bradley SchmiederDirector | 270 | — | — | 78,439 | — | plan? late |
| Nov 7, 2018 AForm 4 → | Nov 28, 6:02 pm EST | H Stuart CampbellDirector | 150 | — | — | 41,677 | — | plan? late |
| Nov 7, 2018 AForm 4 → | Nov 28, 5:54 pm EST | Robert V DwyerDirector | 150 | — | — | 63,571 | — | plan? late |
| Nov 7, 2018 AForm 4 → | Nov 28, 5:48 pm EST | John James SullivanDirector | 150 | — | — | 71,448 | — | plan? late |
| Nov 7, 2018 AForm 4 → | Nov 28, 5:39 pm EST | John Bradley SchmiederDirector | 150 | — | — | 78,169 | — | plan? late |
| Nov 7, 2018 AForm 4 → | Nov 28, 5:34 pm EST | Evan GuilleminDirector | 150 | — | — | 63,468 | — | plan? late |
| Nov 7, 2018 AForm 4 → | Nov 28, 5:19 pm EST | David M KellyDirector | 150 | — | — | 3,050 | — | plan? late |
| Nov 7, 2018 AForm 4 → | Nov 28, 5:10 pm EST | Michael T BrooksDirector | 150 | — | — | 27,900 | — | plan? late |
| Sep 20, 2018 JForm 4 → | Sep 24, 10:00 am EDT | Evan GuilleminDirector | 107,987 | — | — | 63,318 | — | plan? |
| Sep 13, 2018 SForm 4 → | Sep 17, 9:41 pm EDT | David M KellyDirector | 700 | $190.01 | $133,007 | 2,900 | −19.4% | plan? |
| Sep 13, 2018 MForm 4 → | Sep 17, 9:41 pm EDT | David M KellyDirector | 700 | $23.10 | $16,170 | 3,600 | — | plan? |
| Sep 10, 2018 SForm 4 → | Sep 10, 5:47 pm EDT | Michael T BrooksDirector | 2,700 | $195.39 | $527,553 | 27,750 | −8.87% | plan? |
| Aug 15, 2018 SForm 4 → | Aug 15, 6:12 pm EDT | John SakysCFO | 1,000 | $203.50 | $203,500 | 2,500 | −28.6% | plan? |
| Aug 15, 2018 MForm 4 → | Aug 15, 6:12 pm EDT | John SakysCFO | 1,000 | $48.72 | $48,720 | 3,500 | — | plan? |
| Jul 31, 2018 MForm 4 → | Aug 1, 11:30 am EDT | John SakysCFO | 500 | $48.72 | $24,360 | 2,500 | — | plan? |
| Jun 20, 2018 SForm 4 → | Jun 20, 4:14 pm EDT | Robert V DwyerDirector | 5,000 | $210.03 | $1,050,142 | 63,421 | −7.31% | plan? |
| Jun 15, 2018 GForm 4 → | Jun 15, 6:02 pm EDT | David M KellyDirector | 1,000 | — | — | 2,900 | — | plan? |
| Jun 15, 2018 SForm 4 → | Jun 15, 3:57 pm EDT | John James SullivanDirector | 12,000 | $197.02 | $2,364,240 | 71,298 | −14.4% | plan? |
| Jun 15, 2018 MForm 4 → | Jun 15, 3:57 pm EDT | John James SullivanDirector | 12,000 | $28.23 | $338,752 | 83,298 | — | plan? |
| Jun 11, 2018 SForm 4 → | Jun 20, 4:10 pm EDT | H Stuart CampbellDirector | 989 | $191.17 | $189,065 | 41,527 | −2.33% | plan? late |
| Jun 5, 2018 AForm 4 → | Jun 6, 1:54 pm EDT | Gary M OwensPresident and CEO, Director | 5,160 | — | — | 12,160 | — | plan? |
| Apr 2, 2018 AForm 4/A → | Apr 27, 11:51 am EDT | Robert V DwyerDirector | 150 | — | — | 68,421 | — | plan? |
| Apr 2, 2018 AForm 4 → | Apr 4, 2:29 pm EDT | John Bradley SchmiederDirector | 150 | — | — | 78,019 | — | plan? |
| Apr 2, 2018 AForm 4 → | Apr 4, 2:17 pm EDT | David M KellyDirector | 150 | — | — | 3,900 | — | plan? |
| Apr 2, 2018 AForm 4 → | Apr 4, 2:10 pm EDT | Evan GuilleminDirector | 150 | — | — | 171,305 | — | plan? |
| Apr 2, 2018 AForm 4 → | Apr 4, 1:59 pm EDT | Robert V DwyerDirector | 150 | — | — | 68,671 | — | plan? amended |
| Apr 2, 2018 AForm 4 → | Apr 4, 1:50 pm EDT | H Stuart CampbellDirector | 150 | — | — | 42,516 | — | plan? |
| Apr 2, 2018 AForm 4 → | Apr 4, 1:39 pm EDT | Michael T BrooksDirector | 150 | — | — | 30,450 | — | plan? |
| Apr 2, 2018 AForm 4 → | Apr 4, 1:30 pm EDT | John James SullivanDirector | 150 | — | — | 71,298 | — | plan? |
| Mar 16, 2018 MForm 4 → | Mar 19, 9:01 am EDT | Michael T BrooksDirector | 1,800 | $21.93 | $39,474 | 30,300 | — | plan? |
| Mar 14, 2018 SForm 4 → | Mar 19, 8:48 am EDT | Robert V DwyerDirector | 5,000 | $144.01 | $720,055 | 68,521 | −6.80% | plan? late |
| Feb 26, 2018 GForm 4 → | Feb 27, 6:37 pm EST | Michael T BrooksDirector | 400 | — | — | 28,500 | — | plan? |
| Feb 15, 2018 SForm 4 → | Feb 20, 11:25 am EST | John James SullivanDirector | 4,000 | $138.00 | $552,000 | 71,148 | −5.32% | plan? |
| Feb 15, 2018 MForm 4 → | Feb 20, 11:25 am EST | John James SullivanDirector | 4,000 | $24.56 | $98,247 | 75,148 | — | plan? |
| Feb 8, 2018 SForm 4 → | Feb 8, 5:36 pm EST | John Bradley SchmiederDirector | 3,000 | $132.27 | $396,810 | 77,869 | −3.71% | plan? |
| Dec 29, 2017 GForm 4 → | Jan 2, 2018, 12:46 pm EST | David M KellyDirector | 1,000 | — | — | 3,750 | — | plan? |
| Aug 21, 2017 SForm 4 → | Aug 22, 4:21 pm EDT | H Stuart CampbellDirector | 1,000 | $130.16 | $130,160 | 42,366 | −2.31% | plan? |
| Aug 17, 2017 SForm 4 → | Aug 21, 12:49 pm EDT | H Stuart CampbellDirector | 2,000 | $130.42 | $260,830 | 43,366 | −4.41% | plan? |
| Aug 15, 2017 SForm 4 → | Aug 16, 6:17 pm EDT | H Stuart CampbellDirector | 2 | $134.10 | $268 | 45,366 | −0.00% | plan? |
| Aug 11, 2017 SForm 4 → | Aug 15, 11:58 am EDT | H Stuart CampbellDirector | 608 | $134.08 | $81,521 | 45,368 | −1.32% | plan? |
| Aug 10, 2017 SForm 4 → | Aug 11, 10:42 am EDT | H Stuart CampbellDirector | 1,000 | $136.58 | $136,580 | 45,976 | −2.13% | plan? |
| Aug 9, 2017 SForm 4 → | Aug 11, 10:24 am EDT | H Stuart CampbellDirector | 1,000 | $137.61 | $137,610 | 46,976 | −2.08% | plan? |
| Aug 4, 2017 SForm 4 → | Aug 4, 3:40 pm EDT | H Stuart CampbellDirector | 1,000 | $143.09 | $143,090 | 47,976 | −2.04% | plan? |
| Aug 2, 2017 SForm 4 → | Aug 4, 12:49 pm EDT | H Stuart CampbellDirector | 2,000 | $143.37 | $286,730 | 48,976 | −3.92% | plan? |
| Jun 20, 2017 MForm 4 → | Jun 20, 6:47 pm EDT | John SakysCFO | 1,000 | $48.72 | $48,720 | 2,000 | — | plan? |
| Jun 16, 2017 GForm 4 → | Jun 27, 3:13 pm EDT | Robert V DwyerDirector | 250 | — | — | 73,271 | — | plan? late |
| Jun 14, 2017 SForm 4 → | Jun 16, 4:49 pm EDT | Robert V DwyerDirector | 11,150 | $139.46 | $1,554,930 | 73,521 | −13.2% | plan? |
| Jun 12, 2017 SForm 4 → | Jun 12, 5:45 pm EDT | David M KellyDirector | 1,000 | $142.00 | $142,000 | 4,750 | −17.4% | plan? |
| Jun 9, 2017 SForm 4 → | Jun 12, 4:26 pm EDT | Glenn E AdrianceCSMO | 4,000 | $148.98 | $595,920 | 10,000 | −28.6% | plan? |
| May 15, 2017 GForm 4 → | May 23, 3:27 pm EDT | David M KellyDirector | 300 | — | — | 5,750 | — | plan? late |
| May 10, 2017 MForm 4 → | May 15, 12:01 pm EDT | John James SullivanPresident and CEO | 9,000 | $18.98 | $170,820 | 71,118 | — | plan? late |
| Mar 20, 2017 SForm 4 → | Mar 21, 10:24 am EDT | Michael T BrooksDirector | 2,000 | $122.94 | $245,880 | 28,900 | −6.47% | plan? |
| Feb 21, 2017 SForm 4 → | Feb 23, 11:30 am EST | Robert V DwyerDirector | 5,000 | $125.13 | $625,666 | 84,671 | −5.58% | plan? |
| Feb 17, 2017 SForm 4 → | Feb 21, 7:24 pm EST | John James SullivanPresident and CEO | 9,078 | $124.83 | $1,133,179 | 62,118 | −12.8% | plan? |
| Feb 17, 2017 MForm 4 → | Feb 21, 7:24 pm EST | John James SullivanPresident and CEO | 9,078 | $18.46 | $167,540 | 71,196 | — | plan? |
| Feb 13, 2017 SForm 4/A → | Feb 21, 7:33 pm EST | John James SullivanPresident and CEO | 5,922 | $123.99 | $734,269 | 62,118 | −8.70% | plan? |
| Feb 13, 2017 MForm 4/A → | Feb 21, 7:33 pm EST | John James SullivanPresident and CEO | 5,922 | $18.98 | $112,400 | 68,040 | — | plan? |
| Feb 13, 2017 SForm 4 → | Feb 15, 6:09 pm EST | John James SullivanPresident and CEO | 5,922 | $123.99 | $734,269 | 62,118 | −8.70% | plan? amended |
| Feb 13, 2017 MForm 4 → | Feb 15, 6:09 pm EST | John James SullivanPresident and CEO | 5,922 | $18.98 | $112,400 | 68,040 | — | plan? amended |
| Feb 7, 2017 SForm 4 → | Feb 8, 3:12 pm EST | H Stuart CampbellDirector | 8,000 | $121.55 | $972,400 | 55,930 | −12.5% | plan? |
| Feb 7, 2017 SForm 4 → | Feb 8, 10:23 am EST | John Bradley SchmiederDirector | 2,000 | $122.90 | $245,800 | 80,869 | −2.41% | plan? |
| Feb 6, 2017 SForm 4 → | Feb 7, 5:50 pm EST | Glenn E AdrianceCSMO | 8,070 | $124.15 | $1,001,893 | 7,100 | −53.2% | plan? |
| Feb 6, 2017 MForm 4 → | Feb 7, 5:50 pm EST | Glenn E AdrianceCSMO | 1,070 | $70.56 | $75,499 | 15,170 | — | plan? |
| Dec 14, 2016 SForm 4 → | Dec 27, 1:10 pm EST | Robert V DwyerDirector | 2,002 | $133.06 | $266,394 | 89,671 | −2.18% | plan? late |
| Nov 23, 2016 SForm 4 → | Nov 28, 12:25 pm EST | Glenn E AdrianceCMSO | 3,567 | $135.93 | $484,862 | 14,100 | −20.2% | plan? |
| Nov 23, 2016 MForm 4 → | Nov 28, 12:25 pm EST | Glenn E AdrianceCMSO | 3,567 | $74.58 | $266,024 | 17,667 | — | plan? |
| Nov 15, 2016 SForm 4 → | Nov 17, 6:16 pm EST | John SakysCFO | 1,000 | $127.14 | $127,140 | 1,000 | −50.0% | plan? |