| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Callens Christian P | SVP Legal, Gen Counsel & Sec | 19001 CRESCENT SPRINGS DRIVE, KINGWOOD | /s/ Christian P. Callens | 11 Mar 2026 | 0002007014 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NSP | Common Stock | Purchase | $24,100 | +1,250 | +4.4% | $19.28 | 29,600 | 11 Mar 2026 | Direct |