Form 4 for MLAB MESA LABORATORIES INC /CO/
Accepted 2026-06-16 14:15:07 ET · period of report 2026-06-15 · accession 0000724004-26-000057 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-16 14:15 | 2026-06-15 | MLAB | Sakys John | CFO | M - OptEx | $104.08 | +2,717 | 17.8K | +18% | +$282.8K |
| D | 2026-06-16 14:15 | 2026-06-15 | MLAB | Sakys John | CFO | E - Exp Short | $0.00 | -3,951 | 15.8K | -20% | $0 |
| D | 2026-06-16 14:15 | 2026-06-15 | MLAB | Sakys John | CFO | M - OptEx | $0.00 | -2,717 | 5,416 | -33% | $0 |
| D | 2026-06-16 14:15 | 2026-06-15 | MLAB | Sakys John | CFO | A - Grant | $0.00 | +8,416 | 8,416 | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-06-15 | M | A | 2,717 | $104.08 | 17,761 | D | — | — | |
| 2 | Derivative | Non Qualified Stock Option | 2026-06-15 | E | D | 3,951 | $0.00 | 15,755 | D | $226.72 · 2021-06-15 to 2026-06-15 | 3,951 Common Stock | (F1) NSOs that vested 1/3 on each anniversary date of the June 15, 2020 grant date |
| 3 | Derivative | Restricted Stock Units 8 | 2026-06-15 | M | D | 2,717 | $0.00 | 5,416 | D | — · — to — | 2,717 Common Stock | (F2) Each RSU represents a contingent right to receive one share of the Issuer's common stock (F3) RSUs that vest 1/3 on June 15, 2026 and each of the next two anniversary dates (F4) Not Applicable |
| 4 | Derivative | Restricted Stock Units - 9 | 2026-06-15 | A | A | 8,416 | $0.00 | 8,416 | D | — · 2027-06-15 to — | 8,416 Common Stock | (F2) Each RSU represents a contingent right to receive one share of the Issuer's common stock (F5) RSUs that vest 34% on June 15, 2027, 33% on June 8, 2028 and 33% on June 8, 2029 (F4) Not Applicable |