Brian David Archbold insider trades: Mesa Laboratories (MLAB) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Brian reports to the SEC
Open-market buys and sales
14 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 22, 2026 | MLAB | ↓ Sell | 2,516 | $89.50 | $225K | Direct | Jun 23, 2026 (1d) |
| Jun 16, 2026 | MLAB | ↓ Sell | 1,151 | $101.27 | $117K | Direct | Jun 17, 2026 (1d) |
| Jun 16, 2025 | MLAB | ↓ Sell | 472 | $97.12 | $46K | Direct | Jun 18, 2025 (2d) |
| Sep 13, 2024 | MLAB | ↓ Sell10b5-1 | 1,499 | $125.00 | $187K | Direct | Sep 16, 2024 (3d) |
| Dec 15, 2023 | MLAB | ↓ Sell10b5-1 | 1,500 | $112.36 | $169K | Direct | Dec 19, 2023 (4d) |
| Jun 21, 2022 | MLAB | ↓ Sell | 392 | $188.22 | $74K | Direct | Jun 22, 2022 (1d) |
| Dec 14, 2021 | MLAB | ↓ Sell | 1,659 | $325.02 | $539K | Direct | Dec 15, 2021 (1d) |
| Aug 9, 2021 | MLAB | ↓ Sell | 639 | $280.03 | $179K | Direct | Aug 12, 2021 (3d) |
| Jun 17, 2021 | MLAB | ↓ Sell | 400 | $256.56 | $103K | Direct | Jun 21, 2021 (4d) |
| Jun 16, 2021 | MLAB | ↓ Sell | 1,336 | $257.06 | $343K | Direct | Jun 17, 2021 (1d) |
| Mar 10, 2021 | MLAB | ↓ Sell | 223 | $271.78 | $61K | Direct | Mar 11, 2021 (1d) |
| Nov 9, 2020 | MLAB | ↓ Sell | 533 | $272.11 | $145K | Direct | Nov 10, 2020 (1d) |
| Aug 10, 2020 | MLAB | ↓ Sell | 603 | $250.00 | $151K | Direct | Aug 13, 2020 (3d) |
| Feb 21, 2020 | MLAB | ↓ Sell | 123 | $268.19 | $33K | Direct | Feb 21, 2020 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MLAB insiders
Open-market trades in the last 12 months
About Brian David Archbold's insider trades
Brian David Archbold is SVP Operations at Mesa Laboratories (MLAB). Since Feb 21, 2020, Brian has reported no open-market purchases and 14 sales worth $2.4M on SEC Form 4. In the last 12 months: 2 sales ($342K).
2 sales (15% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include option exercises (18 filings), grants and awards (11 filings), shares withheld for taxes (11 filings), other transactions (4 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MLAB insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.