Reporting Manager
Dimensional Fund Advisors LP
Symbol
GHC
Shares outstanding
3,394,529 shares
Disclosed Ownership
237,617 shares
Ownership
7%
Form type
SCHEDULE 13G/A
Filing time
21 Jan 2026, 13:21:13 UTC
Date of event
31 Dec 2025

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Dimensional Fund Advisors LP 7% 237,617 233,172 0 Selwyn Notelovitz Global Chief Compliance Officer