| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | REFR | Stock Option (right to buy) | Award | $0 | +6,000 | +17% | $0.000000 | 41,950 | 31 Dec 2023 | Common Stock | 6,000 | $1.02 | Direct |