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 |
| 2026-08-13 Sale | 2026-08-17 12:18 pm | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 7,093 | $112.8 | $800,090 | 62,944 (Indirect Direct) | View |
| 2026-08-13 Purchase | 2026-08-17 11:49 am | MESA LABORATORIES INC | MLAB | Kadia Siddhartha President and CEO | 7,093 | $112.8 | $800,090 | 7,093 (Indirect) | View |
| 2026-08-13 Purchase | 2026-08-17 11:27 am | MESA LABORATORIES INC | MLAB | Tripeny R Tony Director | 900 | $113.69 | $102,321 | 6,298 (Direct) | View |
| 2026-06-22 Sale | 2026-06-23 1:34 pm | MESA LABORATORIES INC | MLAB | Crennen Lyndsey Elizabeth CAO | 442 | $89.5 | $39,560 | 2,619 (Direct) | View |
| 2026-06-22 Sale | 2026-06-23 1:02 pm | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 2,516 | $89.5 | $225,187 | 8,857 (Direct) | View |
| 2026-06-22 Sale | 2026-06-23 12:23 pm | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,827 | $89.5 | $253,022 | 22,590 (Indirect Direct) | View |
| 2026-06-16 Sale | 2026-06-17 12:23 pm | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 1,151 | $101.27 | $116,558 | 3,710 (Direct) | View |
| 2026-06-16 Sale | 2026-06-17 12:19 pm | MESA LABORATORIES INC | MLAB | Crennen Lyndsey Elizabeth CAO | 118 | $101.27 | $11,950 | 1,473 (Direct) | View |
| 2026-06-16 Sale | 2026-06-17 12:09 pm | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,223 | $101.27 | $123,850 | 16,588 (Indirect Direct) | View |
| 2026-03-10 Purchase | 2026-03-10 5:43 pm | MESA LABORATORIES INC | MLAB | Ladiwala Shiraz Shabanali Director | 3,500 | $72.23 | $252,805 | 8,523 (Direct) | View |
| 2026-03-10 Purchase | 2026-03-10 3:46 pm | MESA LABORATORIES INC | MLAB | Capone Mark Christopher Director | 1,301 | $76.35 | $99,331 | 3,429 (Direct) | View |
| 2026-03-10 Purchase | 2026-03-10 3:39 pm | MESA LABORATORIES INC | MLAB | Tripeny R Tony Director | 1,315 | $76 | $99,940 | 5,398 (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 |
| 2026-08-15 Exercise | 2026-08-17 7:40 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Capone Mark Christopher Director | 2,784 | $0 | 6,213 (Direct) | View |
| 2026-08-15 Exercise | 2026-08-17 7:32 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Alltoft Jennifer Sadie Director | 2,784 | $0 | 7,662 (Direct) | View |
| 2026-08-15 Exercise | 2026-08-17 5:55 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Ladiwala Shiraz Shabanali Director | 3,810 | $0 | 12,333 (Direct) | View |
| 2026-08-15 Exercise | 2026-08-17 5:46 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Hall Shannon Director | 2,784 | $0 | 6,973 (Direct) | View |
| 2026-08-15 Exercise | 2026-08-17 5:30 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Tripeny R Tony Director | 2,784 | $0 | 9,082 (Direct) | View |
| 2026-08-15 Exercise | 2026-08-17 5:01 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 2,784 | $0 | 65,728 (Direct) | View |
| 2026-06-18 Option Award | 2026-06-23 1:34 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Crennen Lyndsey Elizabeth CAO | 263 | $95.1 | 2,619 (Direct) | View |
| 2026-06-18 Exercise | 2026-06-23 1:34 pm | 2024-06-21 N/A | MESA LABORATORIES INC | MLAB | Crennen Lyndsey Elizabeth CAO | 726 | $0 | 2,619 (Direct) | View |
| 2026-06-18 Exercise | 2026-06-23 1:34 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Crennen Lyndsey Elizabeth CAO | 726 | $95.1 | 2,619 (Direct) | View |
| 2026-06-18 Option Award | 2026-06-23 1:02 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 1,859 | $95.1 | 8,857 (Direct) | View |
| 2026-06-18 Exercise | 2026-06-23 1:02 pm | 2024-06-21 N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 3,324 | $0 | 8,857 (Direct) | View |
| 2026-06-18 Exercise | 2026-06-23 1:02 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 3,324 | $95.1 | 8,857 (Direct) | View |
| 2026-06-18 Option Award | 2026-06-23 12:23 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,282 | $95.1 | 22,590 (Direct) | View |
| 2026-06-18 Exercise | 2026-06-23 12:23 pm | 2024-06-21 N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 3,792 | $0 | 22,590 (Direct) | View |
| 2026-06-18 Exercise | 2026-06-23 12:23 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 3,792 | $95.1 | 22,590 (Direct) | View |
Ownership | 2026-06-16 4:47 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Crennen Lyndsey Elizabeth Chief Accounting Officer | 0 | $0 | 8,476 (Direct) | View |
| 2026-06-15 Exercise | 2026-06-16 2:44 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 2,454 | $104.08 | 25,933 (Direct) | View |
| 2026-06-15 Option Award | 2026-06-16 2:44 pm | 2027-06-15 N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 4,328 | $0 | 25,933 (Direct) | View |
| 2026-06-15 Exercise | 2026-06-16 2:44 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 2,454 | $0 | 25,933 (Direct) | View |
| 2026-06-15 Expired | 2026-06-16 2:44 pm | 2021-06-15 2026-06-15 | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 1,780 | $0 | 25,933 (Direct) | View |
| 2026-06-15 Exercise | 2026-06-16 2:15 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,717 | $104.08 | 47,398 (Direct) | View |
| 2026-06-15 Option Award | 2026-06-16 2:15 pm | 2027-06-15 N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 8,416 | $0 | 47,398 (Direct) | View |
| 2026-06-15 Exercise | 2026-06-16 2:15 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,717 | $0 | 47,398 (Direct) | View |
| 2026-06-15 Expired | 2026-06-16 2:15 pm | 2021-06-15 2026-06-15 | MESA LABORATORIES INC | MLAB | Sakys John CFO | 3,951 | $0 | 47,398 (Direct) | View |
| 2026-04-14 Option Award(A) | 2026-05-19 09:04 am | N/A N/A | MESA LABORATORIES INC | MLAB | Kadia Siddhartha President and CEO | 35,236 | $0 | 35,236 (Direct) | View |
| 2026-04-14 Option Award | 2026-04-24 10:49 am | N/A N/A | MESA LABORATORIES INC | MLAB | Kadia Siddhartha President and CEO | 34,807 | $0 | 34,807 (Direct) | View |
| 2025-12-02 Gift | 2025-12-05 11:10 am | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 2,000 | $0 | 70,062 (Direct) | View |
| 2025-10-27 Exercise | 2025-10-28 3:08 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 11,558 | $0 | 64,135 (Direct) | View |
| 2025-08-15 Option Award | 2025-08-18 2:37 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Ladiwala Shiraz Shabanali Director | 3,810 | $0 | 8,833 (Direct) | View |
| 2025-08-15 Exercise | 2025-08-18 2:37 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Ladiwala Shiraz Shabanali Director | 1,949 | $0 | 8,833 (Direct) | View |
| 2025-08-15 Option Award | 2025-08-18 2:20 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 2,784 | $0 | 74,846 (Direct) | View |
| 2025-08-15 Exercise | 2025-08-18 2:20 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sullivan John James Director | 1,404 | $0 | 74,846 (Direct) | View |
| 2025-08-15 Option Award | 2025-08-18 2:02 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Hall Shannon Director | 2,784 | $0 | 6,973 (Direct) | View |
| 2025-08-15 Exercise | 2025-08-18 2:02 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Hall Shannon Director | 1,404 | $0 | 6,973 (Direct) | View |
| 2025-08-15 Option Award | 2025-08-18 1:54 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Tripeny R Tony Director | 2,784 | $0 | 6,867 (Direct) | View |
| 2025-08-15 Exercise | 2025-08-18 1:54 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Tripeny R Tony Director | 1,404 | $0 | 6,867 (Direct) | View |
| 2025-08-15 Option Award | 2025-08-18 1:45 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Capone Mark Christopher Director | 2,784 | $0 | 4,912 (Direct) | View |
| 2025-08-15 Exercise | 2025-08-18 1:45 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Capone Mark Christopher Director | 1,404 | $0 | 4,912 (Direct) | View |
| 2025-08-15 Option Award | 2025-08-18 1:34 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Alltoft Jennifer Sadie Director | 2,784 | $0 | 7,662 (Direct) | View |
| 2025-08-15 Exercise | 2025-08-18 1:34 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Alltoft Jennifer Sadie Director | 1,404 | $0 | 7,662 (Direct) | View |
| 2025-06-21 Tax Withholding | 2025-06-25 09:14 am | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 454 | $95.82 | 16,180 (Direct) | View |
| 2025-06-21 Exercise | 2025-06-25 09:14 am | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,036 | $0 | 16,180 (Direct) | View |
| 2025-06-21 Exercise | 2025-06-25 09:14 am | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,036 | $95.82 | 16,180 (Direct) | View |
| 2025-06-21 Tax Withholding | 2025-06-25 09:05 am | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 385 | $95.82 | 3,251 (Direct) | View |
| 2025-06-21 Exercise | 2025-06-25 09:05 am | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 844 | $0 | 3,251 (Direct) | View |
| 2025-06-21 Exercise | 2025-06-25 09:05 am | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 844 | $95.82 | 3,251 (Direct) | View |
| 2025-06-21 Tax Withholding | 2025-06-24 10:12 am | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 1,445 | $95.82 | 55,877 (Direct) | View |
| 2025-06-21 Exercise | 2025-06-24 10:12 am | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 3,301 | $0 | 55,877 (Direct) | View |
| 2025-06-21 Exercise | 2025-06-24 10:12 am | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 3,301 | $95.82 | 55,877 (Direct) | View |
| 2025-06-18 Exercise | 2025-06-20 5:39 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 8,707 | $92.99 | 67,621 (Direct) | View |
| 2025-06-18 Exercise | 2025-06-20 5:39 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 8,707 | $0 | 67,621 (Direct) | View |
| 2025-06-18 Tax Withholding | 2025-06-20 5:39 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Owens Gary M President and CEO | 3,810 | $92.99 | 67,621 (Direct) | View |
| 2025-06-18 Exercise | 2025-06-20 5:31 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 2,556 | $92.99 | 6,908 (Direct) | View |
| 2025-06-18 Exercise | 2025-06-20 5:31 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 2,556 | $0 | 6,908 (Direct) | View |
| 2025-06-18 Tax Withholding | 2025-06-20 5:31 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Archbold Brian David SVP Operations | 1,166 | $92.99 | 6,908 (Direct) | View |
| 2025-06-18 Exercise | 2025-06-20 5:22 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,840 | $92.99 | 19,973 (Direct) | View |
| 2025-06-18 Exercise | 2025-06-20 5:22 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 2,840 | $0 | 19,973 (Direct) | View |
| 2025-06-18 Tax Withholding | 2025-06-20 5:22 pm | N/A N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 1,243 | $92.99 | 19,973 (Direct) | View |
| 2025-06-15 Option Award | 2025-06-18 12:18 pm | 2026-06-15 N/A | MESA LABORATORIES INC | MLAB | Sakys John CFO | 8,133 | $0 | 8,133 (Direct) | View |