| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Waltz William E Jr. | Director | 945 BUNKER HILL, SUITE 900, HOUSTON | /s/ Paul B. Cornett, Power of Attorney | 2025-08-29 | 0001674332 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NX | Phantom Stock Units | Award | $23.7K | +1.11K | +6.34% | $21.37 | 18.6K | Aug 28, 2025 | Common Stock | 1.11K | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | Each Phantom Stock Unit is the economic equivalent of one share of common stock. Distributions under the Deferred Compensation Plan are made in cash beginning on a specified date selected by the participant or upon the participant's death, disability, or termination of service as a director. |
| F2 | Units credited to the participant's account under the Deferred Compensation Plan as a result of deferral of Director Compensation. |
| F3 | Includes 73.845 phantom stock units credited to the participant's account as a result of automatic dividend reinvestment. |