| 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 | 03 Sep 2025 | 0001716751 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NEXT | Common Stock | Award | $0 | +257K | +5.68% | $0.00 | 4.77M | 29 Aug 2025 | Direct | F1 |
| transaction | NEXT | Common Stock | Tax liability | -$1.53M | -142K | -2.98% | $10.72 | 4.63M | 29 Aug 2025 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Shares are represented by restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. The restricted stock units vest in three near-equal annual installments beginning August 31, 2026. |
| 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 August 29, 2025. |