Form 4 for MLAB MESA LABORATORIES INC /CO/
Accepted 2026-06-16 14:44:42 ET · period of report 2026-06-15 · accession 0000724004-26-000058 · 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 14:44 | 2026-06-15 | MLAB | Archbold Brian David | SVP Ops | M - OptEx | $104.08 | +2,454 | 4,861 | +102% | +$255.4K |
| D | 2026-06-16 14:44 | 2026-06-15 | MLAB | Archbold Brian David | SVP Ops | E - Exp Short | $0.00 | -1,780 | 11.9K | -13% | $0 |
| D | 2026-06-16 14:44 | 2026-06-15 | MLAB | Archbold Brian David | SVP Ops | M - OptEx | $0.00 | -2,454 | 4,892 | -33% | $0 |
| D | 2026-06-16 14:44 | 2026-06-15 | MLAB | Archbold Brian David | SVP Ops | A - Grant | $0.00 | +4,328 | 4,328 | 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 | 2,454 | $104.08 | 4,861 | D | — | — | |
| 2 | Derivative | Non Qualified Stock Options | 2026-06-15 | E | D | 1,780 | $0.00 | 11,852 | D | $226.72 · 2021-06-15 to 2026-06-15 | 1,780 Common Stock | (F1) NSOs that vested 1/3 on each anniversary date of the June 15, 2020 grant date |
| 3 | Derivative | Restricted Stock Units - 9 | 2026-06-15 | M | D | 2,454 | $0.00 | 4,892 | D | — · — to — | 2,454 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 - 10 | 2026-06-15 | A | A | 4,328 | $0.00 | 4,328 | D | — · 2027-06-15 to — | 4,328 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 |