Brian David Archbold is VP at MESA LABORATORIES INC /CO/ (MLAB). They have made 12 open-market trades across 1 company since 2020, most recently 2026-06-22.
CIK 0001776947
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MLAB | 6,377 | $811K |
Shares reported on the most recent Form 4, priced at the 2026-06-23 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MLAB | SELL | 2026-06-22 | 2026-06-23 | $89.50 | $225K | +9.1% | +7.2% | +39.2% |
| MLAB | SELL | 2026-06-16 | 2026-06-17 | $101.27 | $117K | +3.4% | +0.9% | +32.1% |
| MLAB | SELL | 2025-06-16 | 2025-06-18 | $97.12 | $46K | +3.6% | -25.7% | -31.1% |
| MLAB | SELL · 10b5-1 | 2024-09-13 | 2024-09-16 | $125.00 | $187K | +2.1% | +7.0% | +6.6% |
| MLAB | SELL · 10b5-1 | 2023-12-15 | 2023-12-19 | $112.36 | $169K | +1.5% | -13.3% | -2.8% |
| MLAB | SELL | 2022-06-21 | 2022-06-22 | $188.22 | $148K | +7.0% | +6.7% | -23.1% |
| MLAB | SELL | 2021-12-14 | 2021-12-15 | $325.02 | $1.1M | +2.0% | -8.7% | -22.5% |
| MLAB | SELL | 2021-08-09 | 2021-08-12 | $280.03 | $358K | -4.7% | -0.0% | +13.6% |
| MLAB | SELL | 2021-06-17 | 2021-06-21 | $256.56 | $103K | +2.4% | +7.5% | +20.2% |
| MLAB | SELL | 2021-06-16 | 2021-06-17 | $257.06 | $687K | +2.8% | +7.4% | +13.8% |
| MLAB | SELL | 2021-03-10 | 2021-03-11 | $271.78 | $121K | -6.5% | -6.7% | -2.0% |
| MLAB | SELL | 2020-11-09 | 2020-11-10 | $272.11 | $290K | +2.0% | +2.8% | +3.0% |
| MLAB | SELL | 2020-08-10 | 2020-08-13 | $250.00 | $151K | -3.6% | -0.3% | +10.3% |
| MLAB | SELL | 2020-02-21 | 2020-02-21 | $268.19 | $33K | -3.0% | -27.5% | -7.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.