| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | REVB | Restricted Stock Unit | 10 Jan 2022 | Common Stock | 21,422 | Direct | F1, F2, F3 |
| Id | Content |
|---|---|
| F1 | These RSUs vest quarterly over a one-year period, with the first quarterly vesting scheduled to occur on May 23, 2021. |
| F2 | RSUs do not expire; they either vest or are canceled prior to vesting date. |
| F3 | Each RSU converts into common stock on a one-for-one basis. |
Exhibit 24 - Power of Attorney.