| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AMST | Common Stock | Purchase | $9,471 | +8,000 | +13% | $1.18 | 69,666 | 13 Dec 2021 | By Gilbert S. Omenn Revocable Trust | |
| transaction | AMST | Common Stock | Purchase | $9,354 | +8,000 | +11% | $1.17 | 77,666 | 14 Dec 2021 | By Gilbert S. Omenn Revocable Trust |