MLAB Insider Trading Activity and SEC Form 4 Filings
MLAB insider trading summary
Over the past 12 months, insiders at Mesa Laboratories Inc (MLAB) reported 7 sales worth $1.6M by 4 insiders and 3 open-market purchases worth $1.2M by 3 insiders on SEC Form 4. Net insider selling was $415K.
Latest MLAB insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Aug 13, 2026 | R Tony Tripeny | Director | Buy | $102K (900 @ $113.69) |
| Aug 13, 2026 | John James Sullivan | Director | Sell | $800K (7,093 @ $112.80) |
| Aug 13, 2026 | Siddhartha Kadia | President and CEO | Buy | $800K (7,093 @ $112.80) |
| Jun 22, 2026 | Lyndsey Elizabeth Crennen | CAO | Sell | $40K (442 @ $89.50) |
| Jun 22, 2026 | Brian David Archbold | SVP Operations | Sell | $225K (2,516 @ $89.50) |
| Jun 22, 2026 | John Sakys | CFO | Sell | $253K (2,827 @ $89.50) |
| Jun 16, 2026 | John Sakys | CFO | Sell | $124K (1,223 @ $101.27) |
| Jun 16, 2026 | Lyndsey Elizabeth Crennen | CAO | Sell | $12K (118 @ $101.27) |
| Jun 16, 2026 | Brian David Archbold | SVP Operations | Sell | $117K (1,151 @ $101.27) |
| Mar 10, 2026 | Shiraz Shabanali Ladiwala | Director | Buy | $253K (3,500 @ $72.23) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.