Dimensional Fund Advisors Lp - Sep 30, 2025 SCHEDULE 13G/A Report for NPK International Inc Common Stock (NPKI)

Filing Manager: DIMENSIONAL FUND ADVISORS LP
Reporting Manager: Dimensional Fund Advisors LP
Security: NPK International Inc Common Stock
Symbol: NPKI
Shares outstanding: 84.2M shares
Disclosed Ownership: 4.8M shares
Ownership: 5.7%
Form type: SCHEDULE 13G/A
Date filed: 10/9/2025, 01:48 PM
Date of event: Sep 30, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Dimensional Fund Advisors LP	5.7%	4.8M	4.71M	0	Selwyn Notelovitz	Global Chief Compliance Officer