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Company

MESA LABORATORIES INC /CO/

MLAB · CIK 0000724004

SEC FORM 4
$0.00

MESA LABORATORIES INC /CO/ (MLAB)

Acquisition (code M) of 2,784 shares at $0 per share.

Reporting Person Sullivan John James · Transaction Code M

Traded Aug 15, 2026 · Disclosed Aug 17, 2026

Source: SEC Form 4 · 0000724004-26-000086 · filed 2026-08-17 · View filing →

SEC FORM 4
$0.00

MESA LABORATORIES INC /CO/ (MLAB)

Acquisition (code M) of 2,784 shares at $0 per share.

Reporting Person Tripeny R Tony · Transaction Code M

Traded Aug 15, 2026 · Disclosed Aug 17, 2026

Source: SEC Form 4 · 0000724004-26-000087 · filed 2026-08-17 · View filing →

SEC FORM 4
$0.00

MESA LABORATORIES INC /CO/ (MLAB)

Acquisition (code M) of 2,784 shares at $0 per share.

Reporting Person Hall Shannon · Transaction Code M

Traded Aug 15, 2026 · Disclosed Aug 17, 2026

Source: SEC Form 4 · 0000724004-26-000088 · filed 2026-08-17 · View filing →

SEC FORM 4
$0.00

MESA LABORATORIES INC /CO/ (MLAB)

Acquisition (code M) of 3,810 shares at $0 per share.

Reporting Person Ladiwala Shiraz Shabanali · Transaction Code M

Traded Aug 15, 2026 · Disclosed Aug 17, 2026

Source: SEC Form 4 · 0000724004-26-000089 · filed 2026-08-17 · View filing →

SEC FORM 4
$0.00

MESA LABORATORIES INC /CO/ (MLAB)

Acquisition (code M) of 2,784 shares at $0 per share.

Reporting Person Alltoft Jennifer Sadie · Transaction Code M

Traded Aug 15, 2026 · Disclosed Aug 17, 2026

Source: SEC Form 4 · 0000724004-26-000090 · filed 2026-08-17 · View filing →

SEC FORM 4
$0.00

MESA LABORATORIES INC /CO/ (MLAB)

Acquisition (code M) of 2,784 shares at $0 per share.

Reporting Person Capone Mark Christopher · Transaction Code M

Traded Aug 15, 2026 · Disclosed Aug 17, 2026

Source: SEC Form 4 · 0000724004-26-000091 · filed 2026-08-17 · View filing →

SEC FORM 4
$800,090.40

MESA LABORATORIES INC /CO/ (MLAB)

Sale of 7,093 shares at $112.8 per share.

Reporting Person Sullivan John James · Transaction Code S

Traded Aug 13, 2026 · Disclosed Aug 17, 2026

Source: SEC Form 4 · 0000724004-26-000085 · filed 2026-08-17 · View filing →

SEC FORM 4CLUSTER · 2 INSIDERS
$902,411.40

MESA LABORATORIES INC /CO/ (MLAB)

Purchase of 7,993 shares across 2 reporting persons.

Transaction Code P · Reporting Persons 2

  • Tripeny R TonyPurchase of 900 shares at $113.69 per share.$102,321.00
  • Kadia Siddhartha, President and CEOPurchase of 7,093 shares at $112.8 per share.$800,090.40

Surfaced by rule: 2 distinct insiders, open-market purchases, 7-day window — a deterministic filter, not a recommendation.

Traded Aug 13, 2026 · Disclosed Aug 17, 2026

Source: SEC Form 4 · 0000724004-26-000083 · filed 2026-08-17 · View filing →

Source: SEC Form 4 · 0000724004-26-000084 · filed 2026-08-17 · View filing →