| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Stoops Ronald F | VP, Finance | 600 SOUTH AIRPORT ROAD, MANSFIELD | Ronald F. Stoops BY:/s/Brigette A. Burnell Attorney-in-Fact | 05 Mar 2026 | 0002050708 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GRC | Common Stock | Tax liability | -912 | -11% | $0.000000* | 7,752 | 03 Mar 2026 | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Shares withheld for payment of tax liability on vesting of 3,026 stock units. |
| F2 | Balance includes 2,017 unvested stock units granted under the Company's equity incentive plans. |
| F3 | Balance reflects 3 shares of common stock acquired under the Company's Employee Stock Purchase Plan between February 26, 2026 and March 3, 2026. |