LANIGAN MATTHEW

PrivateCIK: 1672978
Location

THE WOODLANDS, TX

LANIGAN MATTHEW (VP and Pres of NMIS) exercised options at NPK INTERNATIONAL INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise
InsiderLANIGAN MATTHEWCIK 1672978
IssuerNPK INTERNATIONAL INC.CIK 71829
Officer· VP and Pres of NMIS
Since May 2019
-89.55K
Net shares
Net seller
$1.28M
Total sold
0
Open market trades
0B · 0S
5
Total transactions
100.19K acquired · 189.74K disposed
Non-Derivative Transactions4

Common Stock

Direct
F · Tax Withholding

Shares

22.23K

Price / share

$14.31

Trade value

$318.14K

% of position

5.4%
6/1/2026
411.44K389.20K

Common Stock

Direct
F · Tax Withholding

Shares

27.89K

Price / share

$14.31

Trade value

$399.16K

% of position

7.2%
6/1/2026
389.20K361.31K

Common Stock

Direct
F · Tax Withholding

Shares

39.42K

Price / share

$14.31

Trade value

$564.14K

% of position

10.9%
6/1/2026
361.31K321.89K

Common Stock

Direct
M · Option Exercise

Shares

+100.19K

Price / share

Trade value

% of position

31.1%
6/1/2026
321.89K422.07K
Total

Net shares

+10.64K

Net value

-$1.28M

Derivative Transactions1

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

100.19K shares

Shares

100.19K

Strike price

0.0

Held after

0.00

Exercisable

6/1/2026
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned770.25K
Total
770.25K indirect770.25K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
LANIGAN MATTHEW — Insider Transaction (Form 4) Filed Jun 3, 2026 | Finecho