Dimensional Fund Advisors Lp - Sep 30, 2025 SCHEDULE 13G/A Report for Geospace Technologies Corp Common Stock (GEOS)

Filing Manager: Dimensional Fund Advisors Lp
Reporting Manager: Dimensional Fund Advisors LP
Security: Geospace Technologies Corp Common Stock
Symbol: GEOS
Shares outstanding: 12.8M shares
Disclosed Ownership: 628K shares
Ownership: 4.9%
Form type: SCHEDULE 13G/A
Date filed: 10/9/2025, 01:48 PM
Date of event: Sep 30, 2025
Previous filing: Jan 23, 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	4.9%	628K	614K	0	Selwyn Notelovitz	Global Chief Compliance Officer