| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Schatzman Matthew K | Chief Executive Officer, Director | 1000 LOUISIANA STREET, SUITE 3300, HOUSTON | /s/ Vera de Gyarfas, Attorney-in-fact | 20 Oct 2025 | 0001716751 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NEXT | Common Stock | Award | $0 | +223,509 | +4.3% | $0.000000 | 5,469,825 | 16 Oct 2025 | Direct | F1 |
| transaction | NEXT | Common Stock | Tax liability | $537,381 | -87,951 | -1.6% | $6.11 | 5,381,874 | 16 Oct 2025 | Direct | F2 |
| transaction | NEXT | Common Stock | Award | $0 | +223,510 | +4.2% | $0.000000 | 5,605,384 | 16 Oct 2025 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | Represents restricted stock units that vested upon Issuer's achievement of a milestone-based performance criteria on October 16, 2025. |
| F2 | Represents shares of common stock withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units on October 16, 2025. |
| F3 | Represents restricted stock units that became earned to the Reporting Person upon Issuer's achievement of a milestone-based performance criteria on October 16, 2025. Such restricted stock units vest in two equal annual installments beginning on October 16, 2026. |