Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"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
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2023-09-14 Sale | 2023-09-19 12:34 pm | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 4,000 | $123.22 | $492,890 | 62,760 (Direct) | View |
2023-09-13 Sale | 2023-09-14 1:47 pm | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 3,000 | $123.32 | $369,965 | 66,760 (Direct) | View |
2023-09-01 Sale | 2023-09-05 4:34 pm | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 2,000 | $142.82 | $285,640 | 129,801 (Direct) | View |
2023-03-22 Sale | 2023-03-27 09:40 am | MESA LABORATORIES INC | MLAB | Sakys John CFO | 4,628 | $169.5 | $784,447 | 78,074 (Indirect Direct) | View |
2023-03-15 Sale | 2023-03-16 2:42 pm | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,000 | $165.71 | $165,710 | 35,098 (Indirect Direct) | View |
2023-03-09 Sale | 2023-03-09 6:13 pm | MESA LABORATORIES INC | MLAB | Sakys John CFO | 400 | $169.97 | $67,988 | 36,098 (Indirect Direct) | View |
2023-02-09 Sale | 2023-02-09 8:04 pm | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,000 | $184.27 | $184,270 | 36,498 (Indirect Direct) | View |
2023-01-23 Sale | 2023-01-25 12:23 pm | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,100 | $210.19 | $441,399 | 37,498 (Indirect Direct) | View |
2023-01-13 Sale(A) | 2023-01-17 12:33 pm | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 1,571 | $191.31 | $300,548 | 68,976 (Direct) | View |
2023-01-13 Sale | 2023-01-17 10:52 am | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 1,571 | $191.31 | $300,548 | 70,876 (Direct) | View |
2022-12-08 Sale | 2022-12-09 09:00 am | MESA LABORATORIES INC | MLAB | Hall Shannon Director | 230 | $174.97 | $40,244 | 957 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2023-09-01 Exercise | 2023-09-06 12:36 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Ladiwala Shiraz Shabanali Director | 1,614 | $0 | 3,074 (Direct) | View |
2023-09-01 Exercise | 2023-09-06 12:26 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Hall Shannon Director | 1,074 | $0 | 1,074 (Direct) | View |
2023-09-01 Exercise | 2023-09-06 12:15 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Alltoft Jennifer Sadie Director | 1,074 | $0 | 1,074 (Direct) | View |
2023-09-01 Exercise | 2023-09-06 12:06 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 1,074 | $0 | 1,074 (Direct) | View |
2023-09-01 Exercise | 2023-09-06 11:59 am | N/A N/A | MESA LABORATORIES INC | MLAB | Tripeny R Tony Director | 1,074 | $0 | 1,074 (Direct) | View |
2023-09-01 Option Award | 2023-09-05 5:11 pm | 2024-09-01 N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 3,109 | $0 | 3,109 (Direct) | View |
2023-09-01 Option Award | 2023-09-05 5:04 pm | 2024-09-01 N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 2,533 | $0 | 2,533 (Direct) | View |
2023-09-01 Option Award | 2023-09-05 4:52 pm | 2024-09-01 N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 9,902 | $0 | 9,902 (Direct) | View |
2023-09-01 Exercise | 2023-09-05 4:34 pm | 2018-09-01 2023-09-01 | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 2,000 | $0 | 129,801 (Direct) | View |
2023-09-01 Exercise | 2023-09-05 4:34 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 2,000 | $136.42 | 129,801 (Direct) | View |
2023-08-15 Exercise | 2023-08-16 3:54 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Tripeny R Tony Director | 1,105 | $0 | 1,605 (Direct) | View |
2023-08-15 Exercise | 2023-08-16 3:45 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Ladiwala Shiraz Shabanali Director | 1,055 | $0 | 1,460 (Direct) | View |
2023-08-15 Exercise | 2023-08-16 3:37 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 754 | $0 | 73,584 (Direct) | View |
2023-08-15 Exercise | 2023-08-16 3:28 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Alltoft Jennifer Sadie Director | 754 | $0 | 2,400 (Direct) | View |
2023-08-15 Exercise | 2023-08-16 3:19 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 754 | $0 | 69,760 (Direct) | View |
2023-08-15 Exercise | 2023-08-16 2:03 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Hall Shannon Director | 754 | $0 | 1,711 (Direct) | View |
2023-06-21 Option Award | 2023-06-26 10:45 am | 2024-06-21 2029-06-21 | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 4,579 | $0 | 15,406 (Direct) | View |
2023-06-21 Option Award | 2023-06-26 10:39 am | 2024-06-21 2029-06-21 | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 17,896 | $0 | 101,769 (Direct) | View |
2023-06-21 Option Award | 2023-06-26 10:29 am | 2024-06-21 2029-06-21 | MESA LABORATORIES INC | MLAB | Sakys John CFO | 5,619 | $0 | 26,293 (Direct) | View |
2023-06-16 Exercise | 2023-06-21 1:38 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 15 | $0 | 72,830 (Direct) | View |
2023-06-16 Tax Withholding | 2023-06-21 1:38 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 6 | $135.55 | 72,830 (Direct) | View |
2023-06-16 Exercise | 2023-06-21 1:22 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 5,640 | $0 | 37,330 (Direct) | View |
2023-06-16 Tax Withholding | 2023-06-21 1:22 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 945 | $135.55 | 37,330 (Direct) | View |
2023-06-16 Exercise | 2023-06-21 12:23 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 1,224 | $0 | 3,482 (Direct) | View |
2023-06-16 Tax Withholding | 2023-06-21 12:23 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 189 | $135.55 | 3,482 (Direct) | View |
2023-06-16 Exercise | 2023-06-21 12:02 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,696 | $0 | 12,828 (Direct) | View |
2023-06-15 Tax Withholding | 2023-06-21 12:02 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 288 | $135.55 | 12,828 (Direct) | View |
2023-06-15 Exercise | 2023-06-16 7:56 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 15 | $0 | 28,256 (Direct) | View |
2023-06-15 Tax Withholding | 2023-06-16 7:56 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 6 | $134.45 | 28,256 (Direct) | View |
2023-06-15 Exercise | 2023-06-16 7:46 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 30 | $0 | 69,006 (Direct) | View |
2023-06-15 Exercise | 2023-06-16 7:37 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M CEO | 5,646 | $0 | 38,275 (Direct) | View |
2023-06-15 Tax Withholding | 2023-06-16 7:37 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M CEO | 1,237 | $134.45 | 38,275 (Direct) | View |
2023-06-15 Exercise | 2023-06-16 7:10 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 1,228 | $0 | 3,671 (Direct) | View |
2023-06-15 Tax Withholding | 2023-06-16 7:10 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 283 | $134.45 | 3,671 (Direct) | View |
2023-06-15 Exercise | 2023-06-16 6:24 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,696 | $0 | 13,216 (Direct) | View |
2023-06-15 Tax Withholding | 2023-06-16 6:24 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 373 | $134.45 | 13,216 (Direct) | View |
2023-03-22 Exercise | 2023-03-27 09:40 am | 2018-04-03 2023-04-03 | MESA LABORATORIES INC | MLAB | Sakys John CFO | 4,628 | $0 | 78,074 (Direct) | View |
2023-03-24 Exercise | 2023-03-27 09:40 am | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,128 | $51.85 | 78,074 (Direct) | View |
2023-03-22 Exercise | 2023-03-27 09:40 am | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 3,500 | $122.66 | 78,074 (Direct) | View |
2023-03-15 Exercise | 2023-03-16 2:42 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,000 | $70.56 | 35,098 (Direct) | View |
2023-03-15 Exercise | 2023-03-16 2:42 pm | 2016-04-01 2023-04-01 | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,000 | $0 | 35,098 (Direct) | View |
2023-03-09 Exercise | 2023-03-09 6:13 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 400 | $70.56 | 36,098 (Direct) | View |
2023-03-09 Exercise | 2023-03-09 6:13 pm | 2016-04-01 2023-04-01 | MESA LABORATORIES INC | MLAB | Sakys John CFO | 400 | $0 | 36,098 (Direct) | View |
2023-02-09 Exercise | 2023-02-09 8:04 pm | 2014-04-01 2023-04-01 | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,000 | $0 | 36,498 (Direct) | View |
2023-02-09 Exercise | 2023-02-09 8:04 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,000 | $51.85 | 36,498 (Direct) | View |
2023-02-02 Gift | 2023-02-06 11:50 am | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 14,580 | $0 | 72,812 (Direct) | View |
2023-01-23 Exercise | 2023-01-25 12:23 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,100 | $70.56 | 37,498 (Direct) | View |
2023-01-23 Exercise | 2023-01-25 12:23 pm | 2016-04-01 2023-04-01 | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,100 | $0 | 37,498 (Direct) | View |
2023-01-13 Exercise | 2023-01-17 10:52 am | N/A N/A | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 571 | $72.02 | 70,876 (Direct) | View |
2023-01-13 Exercise | 2023-01-17 10:52 am | 2016-04-08 2023-04-08 | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 1,571 | $0 | 70,876 (Direct) | View |
2013-01-13 Exercise | 2023-01-17 10:52 am | N/A N/A | MESA LABORATORIES INC | MLAB | Schmieder John Bradley Director | 1,000 | $122.66 | 70,876 (Direct) | View |
2022-11-15 Option Award | 2022-12-14 11:26 am | N/A N/A | MESA LABORATORIES INC | MLAB | Ladiwala Shiraz Shabanali Director | 40 | $0 | 40 (Direct) | View |
2022-11-28 Gift | 2022-11-29 10:52 am | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 1,425 | $0 | 72,812 (Direct) | View |