| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMST | Employee Stock Option (right to buy) | Award | $0 | +40,000 | $0.000000 | 40,000 | 14 May 2021 | Common Stock | 40,000 | $2.19 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | 25% of the stock options will vest on the first anniversary of the date of grant; the remaining stock options will vest in equal monthly installments thereafter over the following 36 months. |