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NPK International Inc.

NPKI Scheduled selling only

CIK 0000071829 #2439 in the set updated 17 Sep 2026

Bought (12 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$5.74M

$4.05M on a plan · $1.69M straight out of an exercise

Sold at will

$0.00

0 of 17 sales

Net

−$5.74M

$0.00 against sales at will

By person

14 insiders · 17 transactions

4.5×

Matthew S. Lanigan holds only 4.5 times base salary in stock. $3.42M of shares against $754.00K in salary for 2025.

Salary from the company's own proxy. The shares are what Matthew S. Lanigan last reported holding, valued at $13.41, the price Common Stock was last bought or sold at on the open market here, on 9 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Piontek Gregg

Senior Vice President and CFO

—

$2.49M (5) scheduled

−$2.49M

858,182

1.01%

$11.51M

+8.4%

LANIGAN MATTHEW

President & CEO

—

$2.42M (1) scheduled

−$2.42M

254,699

0.3000%

$3.42M

−67.3%

Briggs Lori

VP & President, Ind. Solutions

—

$391.42K (3) scheduled

−$391.42K

247,165

0.2911%

$3.31M

+22.8%

Fruge Mary Celeste

VP, General Counsel

—

$162.86K (2) scheduled

−$162.86K

284,641

0.3352%

$3.82M

+26.2%

ROBESON ROSE M

Director

—

$134.92K (1) scheduled

−$134.92K

215,147

0.2534%

$2.89M

+10.0%

Lewis Michael A

Director

—

$112.46K (4) scheduled

−$112.46K

135,865

0.1600%

$1.82M

+9.3%

Warren Matthew James

Chief Accounting Officer

—

$40.11K (1) scheduled

−$40.11K

51,439

0.0606%

$689.86K

−5.5%

Young Donald Win

Director

—

310,940

0.3662%

$4.17M

+5.1%

WHITE DOUGLAS L

VP, CAO & Treasurer

—

305,245

0.3595%

$4.09M

+18.5%

MINGE JOHN C

Director

—

253,942

0.2991%

$3.41M

+15.3%

Meer Claudia Michel

Director

—

126,693

0.1492%

$1.70M

+27.9%

CUTILLO JOSEPH A

Director

—

36,155

0.0426%

$484.88K

—

LARSON RODERICK A.

Director

—

23,655

0.0279%

$317.24K

—

Pederson Kristen J.

Director

—

6,614

0.0078%

$88.70K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Warren Matthew James

9 Sep 2026

Chief Accounting Officer

Sold on a plan

2,991

$13.41

$40.11K

ROBESON ROSE M

27 Aug 2026

Director

Sold on a plan

10,000

$13.49

$134.92K

Lewis Michael A

17 Aug 2026

Director

Sold on a plan

2,013

$14.26

$28.71K

Briggs Lori

8 Jun 2026

VP & President, Ind. Solutions

Sold on a plan

8,325

$14.75

$122.79K

LANIGAN MATTHEW

3 Jun 2026

President & CEO

Sold on a plan

167,375

$14.43

$2.42M

Briggs Lori

2 Jun 2026

VP & President, Ind. Solutions

Sold on a plan

10,446

$14.58

$152.28K

Lewis Michael A

15 May 2026

Director

Sold on a plan

2,013

$15.30

$30.80K

Piontek Gregg

9 Apr 2026

Senior Vice President and CFO

Sold on a plan

15,000

$15.05

$225.68K

Piontek Gregg

1 Apr 2026

Senior Vice President and CFO

Sold on a plan

35,000

$14.51

$507.86K

Piontek Gregg

25 Mar 2026

Senior Vice President and CFO

Sold on a plan

15,000

$15.03

$225.38K

Fruge Mary Celeste

16 Mar 2026

VP, General Counsel

Sold after exercise

1,000

$13.56

$13.56K

Fruge Mary Celeste

6 Mar 2026

VP, General Counsel

Sold after exercise

11,193

$13.34

$149.30K

Piontek Gregg

4 Mar 2026

Senior Vice President and CFO

Sold after exercise

35,000

$14.02

$490.59K

Piontek Gregg

4 Mar 2026

Senior Vice President and CFO

Sold after exercise

73,590

$14.10

$1.04M

Lewis Michael A

23 Feb 2026

Director

Sold on a plan

2,013

$14.31

$28.80K

Lewis Michael A

24 Nov 2025

Director

Sold on a plan

2,013

$12.00

$24.16K

Briggs Lori

1 Oct 2025

VP & President, Ind. Solutions

Sold on a plan

10,108

$11.51

$116.35K

NPK International Inc.

By person

Individual transactions

What was left out