DIMENSIONAL FUND ADVISORS LP - 30 Sep 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: 84,165,930 shares
Disclosed Ownership: 4,797,458 shares
Ownership: 5.7%
Form type: SCHEDULE 13G/A
Filing time: 09 Oct 2025, 13:48:12 UTC
Date of event: 30 Sep 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%	4,797,458	4,714,823	0	Selwyn Notelovitz	Global Chief Compliance Officer