| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Sakys John | CFO | MESA LABORATORIES, INC., 12100 W. 6TH AVENUE, LAKEWOOD | John Sakys | 25 Jun 2025 | 0001197710 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MLAB | Common Stock | Options Exercise | $99.3K | +1.04K | +7.16% | $95.82 | 15.5K | 21 Jun 2025 | Direct | |
| transaction | MLAB | Common Stock | Tax liability | -$43.5K | -454 | -2.93% | $95.82 | 15K | 21 Jun 2025 | Direct | |
| holding | MLAB | Common Stock | 100 | 21 Jun 2025 | Custodian | F4 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MLAB | Restricted Stock Units - 6 | Options Exercise | $0 | -1.04K | -50% | $0.00 | 1.04K | 21 Jun 2025 | Common Stock | 1.04K | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Each RSU represents a contingent right to receive one share of the Issuer's common stock |
| F2 | RSUs that vest 1/3 on June 21, 2024 and each of the next two anniversary dates |
| F3 | Not Applicable |
| F4 | Consists of 100 shares held by children of which Mr. Sakys is custodian |