MINGE JOHN C

Director at NPK International Inc. · on record since May 21, 2026

Insider trading activity of MINGE JOHN C

Transactions on record: 17; since May 21, 2018

Open-market buys: 7; $181.9K

Open-market sells: 0

Companies traded: 1; last filing May 21, 2026

Figures computed from official regulatory filings — .

Companies where MINGE JOHN C has traded

NPK International Inc.17 tx · $181.9K · May 21, 2026

Track record of MINGE JOHN C

Statistical track record

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Open-market buys: 7

Last buy: Mar 5, 2025

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Transaction history of MINGE JOHN C

Co-insiders of MINGE JOHN C

AIROLA MARK JNPK International Inc.
ANDERSON DAVID CNPK International Inc.
BALLANTINE WILLIAM THOMASNPK International Inc.
Barton III Alvin JamesNPK International Inc.
BEST ANTHONY JAMESNPK International Inc.
BOX JERRYNPK International Inc.
Braun James ENPK International Inc.
Briggs LoriNPK International Inc.
COLE JAMES DNPK International Inc.
Cooper Samuel LeeNPK International Inc.
CUTILLO JOSEPH ANPK International Inc.
Earle Edward ChipmanNPK International Inc.
FINLEY G STEPHENNPK International Inc.
Fruge Mary CelesteNPK International Inc.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
NPK International Inc.Listing on record	May 21, 2026	Award	8,558	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 19, 2025	Award	15,097	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	Mar 6, 2025	Buy	10,000	5.38 USD	$53.8K	conv 66Unusual sizeFirst in 12mo	SEC
NPK International Inc.Listing on record	May 20, 2024	Award	16,108	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 25, 2023	Award	32,134	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 22, 2023	Award	38,560	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	Mar 17, 2023	Buy	5,000	4.05 USD	$20.3K	conv 15	SEC
NPK International Inc.Listing on record	Mar 17, 2023	Buy	5,000	4.00 USD	$20K	conv 15	SEC
NPK International Inc.Listing on record	Nov 21, 2022	Buy	5,000	3.64 USD	$18.2K	conv 26Cluster	SEC
NPK International Inc.Listing on record	Nov 14, 2022	Buy	5,000	3.95 USD	$19.8K	conv 20	SEC
NPK International Inc.Listing on record	Aug 17, 2022	Buy	15,000	2.66 USD	$39.9K	conv 60ClusterFirst in 12mo	SEC
NPK International Inc.Listing on record	May 20, 2022	Award	36,496	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 21, 2021	Award	34,299	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 22, 2020	Award	30,562	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 28, 2019	Award	20,435	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	Nov 20, 2018	Buy	1,300	7.66 USD	$10K	conv 48First in 12mo	SEC
NPK International Inc.Listing on record	May 21, 2018	Award	13,953	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	Signals	Src
NPK International Inc.Listing on record	May 21, 2026	Award	8,558	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 19, 2025	Award	15,097	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	Mar 6, 2025	Buy	10,000	5.38 USD	$53.8K	conv 66Unusual sizeFirst in 12mo	SEC
NPK International Inc.Listing on record	May 20, 2024	Award	16,108	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 25, 2023	Award	32,134	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 22, 2023	Award	38,560	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	Mar 17, 2023	Buy	5,000	4.05 USD	$20.3K	conv 15	SEC
NPK International Inc.Listing on record	Mar 17, 2023	Buy	5,000	4.00 USD	$20K	conv 15	SEC
NPK International Inc.Listing on record	Nov 21, 2022	Buy	5,000	3.64 USD	$18.2K	conv 26Cluster	SEC
NPK International Inc.Listing on record	Nov 14, 2022	Buy	5,000	3.95 USD	$19.8K	conv 20	SEC
NPK International Inc.Listing on record	Aug 17, 2022	Buy	15,000	2.66 USD	$39.9K	conv 60ClusterFirst in 12mo	SEC
NPK International Inc.Listing on record	May 20, 2022	Award	36,496	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 21, 2021	Award	34,299	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 22, 2020	Award	30,562	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	May 28, 2019	Award	20,435	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NPK International Inc.Listing on record	Nov 20, 2018	Buy	1,300	7.66 USD	$10K	conv 48First in 12mo	SEC
NPK International Inc.Listing on record	May 21, 2018	Award	13,953	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC