| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Mendes Meredith W. | Director | 5430 LBJ FREEWAY, SUITE 1700, DALLAS | Jane R. Grimm, Attorney-in-fact, for Meredith W. Mendes | 16 May 2025 | 0001616435 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NL | Common Stock $0.125 par value per share | Award | $20.1K | +2.5K | +9.6% | $8.04 | 28.6K | 15 May 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Shares issued for no cash consideration to directors under the NL Industries, Inc. 2023 Non-Employee Director Stock Plan. Shares held by MWM Investments LLC, which is controlled by Ms. Mendes. |