| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Morehead Angela M | Treasurer and Asst. Secretary | 600 SOUTH AIRPORT ROAD, MANSFIELD | Angela M. Morehead BY: /s/Brigette A. Burnell Attorney-in-Fact | 11 Feb 2026 | 0001775319 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | GRC | Common Stock | 9,360 | 31 Dec 2025 | Direct | F1, F2 | |||||
| holding | GRC | Common Stock (401-K Plan) | 3,986 | 31 Dec 2025 | By 401-K Trust | F3 |
| Id | Content |
|---|---|
| F1 | Includes 3,695 unvested stock units granted under the Company's equity incentive plans. |
| F2 | Balance reflects 179 shares of common stock acquired under the Company's Employee Stock Purchase Plan between March 6, 2025 and December 31, 2025. |
| F3 | Balance reflects 262 shares of common stock acquired under the Company's 401-K Plan during 2025. |