MESA LABORATORIES INC /CO/
MLAB
17 insider filings · Latest: Aug 13, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Aug 13, 2026 | Aug 17 4:18 PM | John James SullivanDirector | Sale | 7,093 | $112.80 | $800.1K | 17,834(D) | View → |
| Aug 13, 2026 | Aug 17 3:49 PM | Siddhartha KadiaPresident and CEO | Purchase | 7,093 | $112.80 | $800.1K | 7,093(I) | View → |
| Aug 13, 2026 | Aug 17 3:27 PM | Tony R TripenyDirector | Purchase | 900 | $113.69 | $102.3K | 6,298(D) | View → |
| Jun 22, 2026 | Jun 23 5:34 PM | Lyndsey Elizabeth CrennenCAO | Sale | 442 | $89.50 | $39.6K | 2,020(D) | View → |
| Jun 22, 2026 | Jun 23 5:02 PM | Brian David ArchboldSVP Operations | Sale | 2,516 | $89.50 | $225.2K | 6,377(D) | View → |
| Jun 22, 2026 | Jun 23 4:23 PM | John SakysCFO | Sale | 2,827 | $89.50 | $253.0K | 19,785(D) | View → |
| Jun 22, 2026 | Jun 22 7:56 PM | Sakys John | Proposed Sale | 2,827 | $89.50 | $253.0K | — | View → |
| Jun 22, 2026 | Jun 22 7:51 PM | Archbold Brian David | Proposed Sale | 2,516 | $89.50 | $225.2K | — | View → |
| Jun 16, 2026 | Jun 17 4:23 PM | Brian David ArchboldSVP Operations | Sale | 1,151 | $101.27 | $116.6K | 3,710(D) | View → |
| Jun 16, 2026 | Jun 17 4:19 PM | Lyndsey Elizabeth CrennenCAO | Sale | 118 | $101.27 | $11.9K | 1,473(D) | View → |
| Jun 16, 2026 | Jun 17 4:09 PM | John SakysCFO | Sale | 1,223 | $101.27 | $123.8K | 16,538(D) | View → |
| Jun 16, 2026 | Jun 16 7:33 PM | Archbold Brian David | Proposed Sale | 1,151 | $101.27 | $116.6K | — | View → |
| Jun 16, 2026 | Jun 16 7:31 PM | Sakys John | Proposed Sale | 1,223 | $101.27 | $123.8K | — | View → |
| Jun 16, 2026 | Jun 16 7:29 PM | Owens Gary M | Proposed Sale | 3,706 | $101.27 | $375.3K | — | View → |
| Mar 10, 2026 | Mar 10 9:43 PM | Shiraz Shabanali LadiwalaDirector | Purchase | 3,500 | $72.23 | $252.8K | 8,523(D) | View → |
| Mar 10, 2026 | Mar 10 7:46 PM | Mark Christopher CaponeDirector | Purchase | 1,301 | $76.35 | $99.3K | 3,429(D) | View → |
| Mar 10, 2026 | Mar 10 7:39 PM | Tony R TripenyDirector | Purchase | 1,315 | $76.00 | $99.9K | 5,398(D) | View → |
| Jun 16, 2025 | Jun 16 7:49 PM | Archbold Brian David | Proposed Sale | 472 | $97.12 | $45.8K | — | View → |
| Jun 16, 2025 | Jun 16 7:47 PM | Owens Gary M | Proposed Sale | 1,939 | $97.12 | $188.3K | — | View → |
| Jun 16, 2025 | Jun 16 7:40 PM | Sakys John | Proposed Sale | 642 | $97.12 | $62.3K | — | View → |
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Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Jun 18, 2026 | Jun 23 5:34 PM | Lyndsey Elizabeth CrennenCAO | Option Exercise | 726 | — | 367(D) | View → |
| Jun 18, 2026 | Jun 23 5:02 PM | Brian David ArchboldSVP Operations | Option Exercise | 3,324 | — | 2,480(D) | View → |
| Jun 18, 2026 | Jun 23 4:23 PM | John SakysCFO | Option Exercise | 3,792 | — | 2,755(D) | View → |
| Jun 15, 2026 | Jun 16 6:44 PM | Brian David ArchboldSVP Operations | Grant/Award | 4,328 | — | 4,328(D) | View → |
| Jun 15, 2026 | Jun 16 6:44 PM | Brian David ArchboldSVP Operations | E | 1,780 | $226.72 | 11,852(D) | View → |
| Jun 15, 2026 | Jun 16 6:44 PM | Brian David ArchboldSVP Operations | Option Exercise | 2,454 | — | 4,892(D) | View → |
| Jun 15, 2026 | Jun 16 6:15 PM | John SakysCFO | Grant/Award | 8,416 | — | 8,416(D) | View → |
| Jun 15, 2026 | Jun 16 6:15 PM | John SakysCFO | E | 3,951 | $226.72 | 15,755(D) | View → |
| Jun 15, 2026 | Jun 16 6:15 PM | John SakysCFO | Option Exercise | 2,717 | — | 5,416(D) | View → |
| Apr 14, 2026 | May 19 1:04 PM | Siddhartha KadiaPresident and CEO | Grant/Award | 35,236 | — | 35,236(D) | View → |
| Apr 14, 2026 | Apr 24 2:49 PM | Siddhartha KadiaPresident and CEO | Grant/Award | 34,807 | — | 34,807(D) | View → |
| Mar 31, 2026 | Apr 2 8:29 PM | Gary M OwensPresident and CEO | Disposition | 8,211 | — | 16,448(D) | View → |