MLAB insider transaction filings
MESA LABORATORIES INC /CO/ — 47 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-08-17. Screen MLAB transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-17 | 4 | Capone Mark Christopher — Director | Option exercise (M): 2,784 @ $0 · Option exercise (M): 2,784 (derivative) @ $0 | EDGAR |
| 2026-08-17 | 4 | Alltoft Jennifer Sadie — Director | Option exercise (M): 2,784 @ $0 · Option exercise (M): 2,784 (derivative) @ $0 | EDGAR |
| 2026-08-17 | 4 | Ladiwala Shiraz Shabanali — Director | Option exercise (M): 3,810 @ $0 · Option exercise (M): 3,810 (derivative) @ $0 | EDGAR |
| 2026-08-17 | 4 | Hall Shannon — Director | Option exercise (M): 2,784 @ $0 · Option exercise (M): 2,784 (derivative) @ $0 | EDGAR |
| 2026-08-17 | 4 | Tripeny R Tony — Director | Option exercise (M): 2,784 @ $0 · Option exercise (M): 2,784 (derivative) @ $0 | EDGAR |
| 2026-08-17 | 4 | Sullivan John James — Director | Option exercise (M): 2,784 @ $0 · Option exercise (M): 2,784 (derivative) @ $0 | EDGAR |
| 2026-08-17 | 4 | Sullivan John James — Director | Sale (S): 7,093 @ $112.80 | EDGAR |
| 2026-08-17 | 4 | Kadia Siddhartha — President and CEO | Purchase (P): 7,093 @ $112.80 | EDGAR |
| 2026-08-17 | 4 | Tripeny R Tony — Director | Purchase (P): 900 @ $113.69 | EDGAR |
| 2026-06-23 | 4 | Crennen Lyndsey Elizabeth — CAO | Option exercise (M): 125 @ $95.10 · Option exercise (M): 233 @ $95.10 · Option exercise (M): 368 @ $95.10 · Grant/award (A): 263 @ $95.10 · Sale (S): 442 @ $89.50 · Option exercise (M): 125 (derivative) @ $0 · +2 more | EDGAR |
| 2026-06-23 | 4 | Archbold Brian David — SVP Operations | Option exercise (M): 844 @ $95.10 · Option exercise (M): 2,480 @ $95.10 · Grant/award (A): 1,859 @ $95.10 · Sale (S): 2,516 @ $89.50 · Option exercise (M): 844 (derivative) @ $0 · Option exercise (M): 2,480 (derivative) @ $0 | EDGAR |
| 2026-06-23 | 4 | Sakys John — CFO | Option exercise (M): 1,036 @ $95.10 · Option exercise (M): 2,756 @ $95.10 · Grant/award (A): 2,282 @ $95.10 · Sale (S): 2,827 @ $89.50 · Option exercise (M): 1,036 (derivative) @ $0 · Option exercise (M): 2,756 (derivative) @ $0 | EDGAR |
| 2026-06-17 | 4 | Crennen Lyndsey Elizabeth — CAO | Sale (S): 118 @ $101.27 | EDGAR |
| 2026-06-17 | 4 | Archbold Brian David — SVP Operations | Sale (S): 1,151 @ $101.27 | EDGAR |
| 2026-06-17 | 4 | Sakys John — CFO | Sale (S): 1,223 @ $101.27 | EDGAR |
| 2026-06-16 | 4 | Archbold Brian David — SVP Operations | Option exercise (M): 2,454 @ $104.08 · Code (E): 1,780 (derivative) @ $0 · Option exercise (M): 2,454 (derivative) @ $0 · Grant/award (A): 4,328 (derivative) @ $0 | EDGAR |
| 2026-06-16 | 4 | Sakys John — CFO | Option exercise (M): 2,717 @ $104.08 · Code (E): 3,951 (derivative) @ $0 · Option exercise (M): 2,717 (derivative) @ $0 · Grant/award (A): 8,416 (derivative) @ $0 | EDGAR |
| 2026-05-19 | 4/A | Kadia Siddhartha — President and CEO | Grant/award (A): 35,236 (derivative) @ $0 | EDGAR |
| 2026-04-24 | 4 | Kadia Siddhartha — President and CEO | Grant/award (A): 34,807 (derivative) @ $0 | EDGAR |
| 2026-04-02 | 4 | Owens Gary M — President and CEO | Disposition to issuer (D): 8,211 (derivative) @ $0 | EDGAR |
| 2026-03-10 | 4 | Ladiwala Shiraz Shabanali — Director | Purchase (P): 3,500 @ $72.23 | EDGAR |
| 2026-03-10 | 4 | Capone Mark Christopher — Director | Purchase (P): 1,301 @ $76.35 | EDGAR |
| 2026-03-10 | 4 | Tripeny R Tony — Director | Purchase (P): 1,315 @ $76 | EDGAR |
| 2025-12-05 | 4 | Sullivan John James — Director | Gift (G): 2,000 @ $0 | EDGAR |
| 2025-10-28 | 4 | Owens Gary M — President and CEO | Option exercise (M): 11,558 @ $0 | EDGAR |
| 2025-08-18 | 4 | Alltoft Jennifer Sadie — Director | Option exercise (M): 1,404 @ $0 · Option exercise (M): 1,404 (derivative) @ $0 · Grant/award (A): 2,784 (derivative) @ $0 | EDGAR |
| 2025-08-18 | 4 | Ladiwala Shiraz Shabanali — Director | Option exercise (M): 1,949 @ $0 · Option exercise (M): 1,949 (derivative) @ $0 · Grant/award (A): 3,810 (derivative) @ $0 | EDGAR |
| 2025-08-18 | 4 | Hall Shannon — Director | Option exercise (M): 1,404 @ $0 · Option exercise (M): 1,404 (derivative) @ $0 · Grant/award (A): 2,784 (derivative) @ $0 | EDGAR |
| 2025-08-18 | 4 | Capone Mark Christopher — Director | Option exercise (M): 1,404 @ $0 · Option exercise (M): 1,404 (derivative) @ $0 · Grant/award (A): 2,784 (derivative) @ $0 | EDGAR |
| 2025-08-18 | 4 | Tripeny R Tony — Director | Option exercise (M): 1,404 @ $0 · Option exercise (M): 1,404 (derivative) @ $0 · Grant/award (A): 2,784 (derivative) @ $0 | EDGAR |
| 2025-08-18 | 4 | Sullivan John James — Director | Option exercise (M): 1,404 @ $0 · Option exercise (M): 1,404 (derivative) @ $0 · Grant/award (A): 2,784 (derivative) @ $0 | EDGAR |
| 2025-06-25 | 4 | Archbold Brian David — SVP Operations | Option exercise (M): 844 @ $95.82 · Tax withholding (F): 385 @ $95.82 · Option exercise (M): 844 (derivative) @ $0 | EDGAR |
| 2025-06-25 | 4 | Sakys John — CFO | Option exercise (M): 1,036 @ $95.82 · Tax withholding (F): 454 @ $95.82 · Option exercise (M): 1,036 (derivative) @ $0 | EDGAR |
| 2025-06-24 | 4 | Owens Gary M — President and CEO | Option exercise (M): 3,301 @ $95.82 · Tax withholding (F): 1,445 @ $95.82 · Option exercise (M): 3,301 (derivative) @ $0 | EDGAR |
| 2025-06-20 | 4 | Archbold Brian David — SVP Operations | Option exercise (M): 2,556 @ $92.99 · Tax withholding (F): 1,166 @ $92.99 · Option exercise (M): 2,556 (derivative) @ $0 | EDGAR |
| 2025-06-20 | 4 | Owens Gary M — President and CEO | Option exercise (M): 8,707 @ $92.99 · Tax withholding (F): 3,810 @ $92.99 · Option exercise (M): 8,707 (derivative) @ $0 | EDGAR |
| 2025-06-20 | 4 | Sakys John — CFO | Option exercise (M): 2,840 @ $92.99 · Tax withholding (F): 1,243 @ $92.99 · Option exercise (M): 2,840 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | Archbold Brian David — SVP Operations | Grant/award (A): 7,346 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | Archbold Brian David — SVP Operations | Option exercise (M): 535 @ $0 · Option exercise (M): 495 @ $0 · Sale (S): 472 @ $97.12 · Option exercise (M): 535 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | Owens Gary M — President and CEO | Grant/award (A): 24,659 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | Owens Gary M — President and CEO | Option exercise (M): 2,324 @ $0 · Option exercise (M): 2,102 @ $0 · Sale (S): 1,939 @ $97.12 · Option exercise (M): 2,324 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | Sakys John — CFO | Grant/award (A): 8,133 (derivative) @ $0 | EDGAR |
| 2025-06-18 | 4 | Sakys John — CFO | Option exercise (M): 793 @ $0 · Grant/award (A): 668 @ $0 · Sale (S): 642 @ $97.12 · Option exercise (M): 793 (derivative) @ $0 | EDGAR |
| 2025-06-11 | 4 | Archbold Brian David — SVP Operations | Code (E): 2,129 (derivative) @ $0 | EDGAR |
| 2025-06-11 | 4 | Owens Gary M — President & CEO | Code (E): 9,939 (derivative) @ $0 | EDGAR |
| 2025-06-11 | 4 | Sakys John — CFO | Code (E): 4,087 (derivative) @ $0 | EDGAR |
| 2025-03-24 | 4 | Owens Gary M — President and CEO | Option exercise (M): 21,000 @ $122.98 · Sale (S): 21,000 @ $123.91 · Option exercise/expiry (X): 21,000 (derivative) @ $0 | EDGAR |
Recent 8-K events — MESA LABORATORIES INC /CO/
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-10 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-07-30 | 8-K | 5.05 — Amendments to the Registrant's Code of Ethics, or Waiver of a Provision of the Code of Ethics 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-06-15 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-27 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-23 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-09 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-03 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-06 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-08-25 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2025-08-18 | 8-K | 2.03 — Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant 9.01 — Financial Statements and Exhibits | EDGAR |
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