Archbold Brian David (CIK 1776947) reported 13 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-23). Recent activity: Buy MLAB (844 shares), Buy MLAB (2,480 shares), Buy MLAB (1,859 shares), Sell MLAB (2,516 shares), Sell MLAB (1,151 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-23 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Buy | 844 | $80,264 |
| 2026-06-23 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Buy | 2,480 | $235,848 |
| 2026-06-23 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Buy | 1,859 | $176,791 |
| 2026-06-23 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Sell | 2,516 | $225,187 |
| 2026-06-17 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Sell | 1,151 | $116,558 |
| 2026-06-16 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Buy | 2,454 | $255,412 |
| 2025-06-25 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Buy | 844 | $80,872 |
| 2025-06-25 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Sell | 385 | $36,891 |
| 2025-06-20 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Buy | 2,556 | $237,682 |
| 2025-06-20 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Sell | 1,166 | $108,426 |
| 2025-06-18 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Buy | 535 | $0 |
| 2025-06-18 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Buy | 495 | $0 |
| 2025-06-18 | MESA LABORATORIES INC /CO/ (MLAB) | SVP Operations | Sell | 472 | $45,841 |
Source: SEC Form 4 filings · as of 2026-06-23