NPKI

NPK International Inc.

Company with tickers: NPKI

CIK

71829

CUSIP

651718504

Shares Outstanding

84,447,036

13F Activity (30d)

149 filings 145 filers

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Date	Insider	Role	Type	Shares	Price	Value	After
2026-06-08	Briggs Lori	VP & President, Ind. Solutions	Sell	8,325	$14.75	$122,790	247,165
2026-06-03	LANIGAN MATTHEW	Director, President & CEO	Other	770,249	—	—	770,249
2026-06-03	LANIGAN MATTHEW	Director, President & CEO	Sell	167,375	$14.43	$2,415,907	254,699
2026-06-02	Briggs Lori	VP & President, Ind. Solutions	Sell	10,446	$14.58	$152,278	255,490
2026-06-01	Piontek Gregg	Senior Vice President and CFO	Tax	8,959	$14.31	$128,203	844,933
2026-06-01	Briggs Lori	VP & President, Ind. Solutions	Convert	24,340	—	—	265,936
2026-06-01	Fruge Mary Celeste	VP, General Counsel	Tax	3,833	$14.31	$54,850	279,382
2026-06-01	Fruge Mary Celeste	VP, General Counsel	Tax	5,218	$14.31	$74,670	274,164
2026-06-01	Fruge Mary Celeste	VP, General Counsel	Tax	6,797	$14.31	$97,265	267,367
2026-06-01	Briggs Lori	VP & President, Ind. Solutions	Tax	5,401	$14.31	$77,288	257,950
2026-06-01	Briggs Lori	VP & President, Ind. Solutions	Tax	6,777	$14.31	$96,979	241,596
2026-06-01	LANIGAN MATTHEW	Director, President & CEO	Convert	100,188	—	—	0
2026-06-01	Fruge Mary Celeste	VP, General Counsel	Convert	17,274	—	—	284,641
2026-06-01	Piontek Gregg	Senior Vice President and CFO	Tax	15,889	$14.31	$227,372	829,044
2026-06-01	LANIGAN MATTHEW	Director, President & CEO	Tax	39,423	$14.31	$564,143	321,886
2026-06-01	Briggs Lori	VP & President, Ind. Solutions	Convert	24,340	—	—	0
2026-06-01	Piontek Gregg	Senior Vice President and CFO	Tax	11,241	$14.31	$160,859	817,803
2026-06-01	Briggs Lori	VP & President, Ind. Solutions	Tax	9,577	$14.31	$137,047	248,373
2026-06-01	Piontek Gregg	Senior Vice President and CFO	Convert	40,379	—	—	0
2026-06-01	LANIGAN MATTHEW	Director, President & CEO	Tax	27,894	$14.31	$399,163	361,309
2026-06-01	LANIGAN MATTHEW	Director, President & CEO	Convert	100,188	—	—	422,074
2026-06-01	Piontek Gregg	Senior Vice President and CFO	Other	65,000	—	—	65,000
2026-06-01	Fruge Mary Celeste	VP, General Counsel	Convert	17,274	—	—	0
2026-06-01	Piontek Gregg	Senior Vice President and CFO	Convert	40,379	—	—	858,182
2026-06-01	LANIGAN MATTHEW	Director, President & CEO	Tax	22,232	$14.31	$318,140	389,203
2026-06-01	LANIGAN MATTHEW	Director, President & CEO	Other	770,249	—	—	770,249
2026-05-20	Meer Claudia Michel	Director	Award	8,558	—	—	126,693
2026-05-20	Lewis Michael A	Director, Interim Pres, PacificGas&Elec	Award	8,558	—	—	137,878
2026-05-20	LARSON RODERICK A.	Director	Award	8,558	—	—	23,655
2026-05-20	MINGE JOHN C	Director	Award	8,558	—	—	253,942
2026-05-20	LARSON RODERICK A.	Director	Other	233,651	—	—	233,651
2026-05-20	ROBESON ROSE M	Director	Award	10,862	—	—	225,147
2026-05-20	CUTILLO JOSEPH A	Director	Award	8,558	—	—	36,155
2026-05-19	Piontek Gregg	Senior Vice President and CFO	Award	34,566	—	—	853,892
2026-05-19	LANIGAN MATTHEW	Director, President & CEO	Award	85,771	—	—	411,435
2026-05-19	Piontek Gregg	Senior Vice President and CFO	Other	65,000	—	—	65,000
2026-05-19	Briggs Lori	VP & President, Ind. Solutions	Award	20,838	—	—	263,351
2026-05-19	LANIGAN MATTHEW	Director, President & CEO	Other	770,249	—	—	770,249
2026-05-19	Fruge Mary Celeste	VP, General Counsel	Award	18,002	—	—	283,215
2026-05-15	Lewis Michael A	Director, Interim Pres, PacificGas&Elec	Sell	2,013	$15.30	$30,802	129,320
2026-04-09	Piontek Gregg	Senior Vice President and CFO	Other	65,000	—	—	65,000
2026-04-09	Piontek Gregg	Senior Vice President and CFO	Sell	15,000	$15.05	$225,675	819,326
2026-04-01	Piontek Gregg	Senior Vice President and CFO	Sell	35,000	$14.51	$507,864	834,326
2026-04-01	Piontek Gregg	Senior Vice President and CFO	Other	65,000	—	—	65,000
2026-03-25	Piontek Gregg	Senior Vice President and CFO	Other	65,000	—	—	65,000
2026-03-25	Piontek Gregg	Senior Vice President and CFO	Sell	15,000	$15.03	$225,384	869,326
2026-03-16	Fruge Mary Celeste	VP, General Counsel	Convert	1,000	—	—	0
2026-03-16	Fruge Mary Celeste	VP, General Counsel	Sell	1,000	$13.56	$13,560	265,213
2026-03-16	Fruge Mary Celeste	VP, General Counsel	Convert	1,000	$4.32	$4,320	266,213
2026-03-06	Fruge Mary Celeste	VP, General Counsel	Sell	11,193	$13.34	$149,303	265,213

Showing 1–50 of 529 transactions