Sullivan John James (CIK 1305784) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-17). Recent activity: Buy MLAB (2,784 shares), Sell MLAB (7,093 shares), Sell MLAB (2,000 shares), Buy MLAB (1,404 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-17 | MESA LABORATORIES INC /CO/ (MLAB) | Director | Buy | 2,784 | $0 |
| 2026-08-17 | MESA LABORATORIES INC /CO/ (MLAB) | Director | Sell | 7,093 | $800,090 |
| 2025-12-05 | MESA LABORATORIES INC /CO/ (MLAB) | Director | Sell | 2,000 | $0 |
| 2025-08-18 | MESA LABORATORIES INC /CO/ (MLAB) | Director | Buy | 1,404 | $0 |
Source: SEC Form 4 filings · as of 2026-08-17