| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Clark Victor F. Jr. | SVP - Sales and Marketing | 1301 MCKINNEY STREET, SUITE 2300, HOUSTON | /s/ Ann D. Garnett, by power of attorney | 05 Jun 2025 | 0002071776 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MRC | Common Stock | Award | $0 | +24.4K | $0.00 | 24.4K | 27 May 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | On May 27, 2025, the reporting person received 24,371 Restricted Stock Units (the "May 2025 Grant"). Each Restricted Stock Unit represents a contingent right to receive one share of the issuer's Common Stock. 34% of the May 2025 Grant will vest on May 27, 2026 and 33% of the May 2025 Grant will vest on each of May 27, 2027 and May 27, 2028, each conditioned on the reporting person's continued service with the issuer and subject to accelerated vesting under certain circumstances. |