| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| KAUFMAN CAROL R | Director | 19001 CRESCENT SPRINGS DRIVE, KINGWOOD | /s/ Christian P. Callens, by Power of Attorney | 06 Aug 2025 | 0001181958 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NSP | Common Stock | Purchase | $226,200 | +5,000 | +12% | $45.24 | 47,067 | 04 Aug 2025 | Direct |