| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Weymouth Katharine | Director | 1812 NORTH MOORE STREET, SUITE 2100, ARLINGTON | /s/ Nicole Maddrey, attorney-in-fact | 29 Dec 2025 | 0001501808 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | GHC | Class B Common Stock | 1,615 | 29 Dec 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GHC | Class A Common Stock | Other | +36,000 | 36,000 | 29 Dec 2025 | Class B Common Stock | 36,000 | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Shares of Class A Common Stock are convertible into shares of Class B Common Stock at any time on a one-for-one basis and have no expiration date. |
| F2 | Receipt of 36,000 shares of Class A Common Stock pursuant to the terms of a trust of which the reporting person is a beneficiary. |
| F3 | N/A |