John James Sullivan, Director at MESA LABORATORIES INC /CO/ (MLAB), sold 7,093 shares at $112.80 ($800K) on 2026-08-13, disclosed to the SEC on 2026-08-17.
Open-market sale of $800k MLAB by Director. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| Filing → |
| MLAB | SELL | 2022-02-16 | $2.7M | — | Filing → |
| MLAB | SELL | 2021-11-16 | $3.2M | — | Filing → |
| MLAB | SELL | 2021-10-04 | $381K | — | Filing → |