Sullivan John James

Director at MESA LABORATORIES INC /CO/ · on record since May 21, 2010
VP Sales & Marketing at MESA LABORATORIES INC /CO/ · on record since Jun 17, 2005

Insider trading activity of Sullivan John James

Transactions on record: 256; since Jun 17, 2005

Open-market buys: 5; $53.8K

Open-market sells: 39; $24.3M

Companies traded: 1; last filing Sep 11, 2026

Figures computed from official regulatory filings — .

Companies where Sullivan John James has traded

MESA LABORATORIES INC /CO/256 tx · $33.9M · Sep 11, 2026

Track record of Sullivan John James

Statistical track record

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Open-market buys: 5

Last buy: Sep 22, 2006

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Transaction history of Sullivan John James

Co-insiders of Sullivan John James

Adriance Glenn EMESA LABORATORIES INC /CO/
Alltoft Jennifer SadieMESA LABORATORIES INC /CO/
Archbold Brian DavidMESA LABORATORIES INC /CO/
BROOKS MICHAEL TMESA LABORATORIES INC /CO/
CAMPBELL H STUARTMESA LABORATORIES INC /CO/
Capone Mark ChristopherMESA LABORATORIES INC /CO/
Crennen Lyndsey ElizabethMESA LABORATORIES INC /CO/
DINOIA GREGORYMESA LABORATORIES INC /CO/
DUKE PAUL DMESA LABORATORIES INC /CO/
Dwyer Robert VMESA LABORATORIES INC /CO/

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
MESA LABORATORIES INC /CO/Listing on record	Sep 11, 2026	AwardD (derivative)	1,774	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 17, 2026	ExerciseD (derivative)	-2,784	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 17, 2026	Exercise	2,784	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 17, 2026	Sell	-7,093	112.80 USD	$800.1K	SEC
MESA LABORATORIES INC /CO/Listing on record	Dec 5, 2025	Gift	-2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 18, 2025	Exercise	1,404	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 18, 2025	AwardD (derivative)	2,784	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 18, 2025	ExerciseD (derivative)	-1,404	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Nov 25, 2024	Gift	-2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Sep 6, 2024	ExerciseD (derivative)	-1,074	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Sep 6, 2024	Exercise	1,074	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 19, 2024	AwardD (derivative)	1,404	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Apr 3, 2024	OtherD (derivative)	-450	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Nov 14, 2023	Gift	-2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Nov 14, 2023	Gift	200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Nov 14, 2023	Gift	-200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Sep 6, 2023	ExerciseD (derivative)	1,074	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 16, 2023	ExerciseD (derivative)	-754	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 16, 2023	Exercise	754	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 21, 2023	Other	-6	135.55 USD	$813.3	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 21, 2023	Exercise	15	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 21, 2023	ExerciseD (derivative)	-15	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 16, 2023	Other	-6	134.45 USD	$806.7	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 16, 2023	ExerciseD (derivative)	-15	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 16, 2023	Exercise	15	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
MESA LABORATORIES INC /CO/Listing on record	Sep 11, 2026	AwardD (derivative)	1,774	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 17, 2026	ExerciseD (derivative)	-2,784	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 17, 2026	Exercise	2,784	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 17, 2026	Sell	-7,093	112.80 USD	$800.1K	SEC
MESA LABORATORIES INC /CO/Listing on record	Dec 5, 2025	Gift	-2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 18, 2025	Exercise	1,404	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 18, 2025	AwardD (derivative)	2,784	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 18, 2025	ExerciseD (derivative)	-1,404	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Nov 25, 2024	Gift	-2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Sep 6, 2024	ExerciseD (derivative)	-1,074	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Sep 6, 2024	Exercise	1,074	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 19, 2024	AwardD (derivative)	1,404	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Apr 3, 2024	OtherD (derivative)	-450	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Nov 14, 2023	Gift	-2,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Nov 14, 2023	Gift	200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Nov 14, 2023	Gift	-200	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Sep 6, 2023	ExerciseD (derivative)	1,074	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 16, 2023	ExerciseD (derivative)	-754	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Aug 16, 2023	Exercise	754	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 21, 2023	Other	-6	135.55 USD	$813.3	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 21, 2023	Exercise	15	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 21, 2023	ExerciseD (derivative)	-15	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 16, 2023	Other	-6	134.45 USD	$806.7	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 16, 2023	ExerciseD (derivative)	-15	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
MESA LABORATORIES INC /CO/Listing on record	Jun 16, 2023	Exercise	15	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC