| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ACMR | Class A Common Stock | Options Exercise | $42,000 | +7,500 | +15% | $5.60 | 57,501 | 28 Feb 2024 | Direct | F1 |
| transaction | ACMR | Class A Common Stock | Sale | $189,000 | -7,500 | -13% | $25.20 | 50,001 | 28 Feb 2024 | Direct | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ACMR | Stock Option | Options Exercise | $0 | -7,500 | -11% | $0.000000 | 60,000 | 28 Feb 2024 | Class A Common Stock | 7,500 | $5.60 | Direct | F1, F3 |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | On February 28, 2024, the reporting person exercised a previously issued stock option to purchase 7,500 shares of Class A Common Stock of the Issuer. |
| F2 | The sale reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 14, 2023. |
| F3 | The option is fully vested and exercisable. |
Chief Financial Officer of ACM Research (Shanghai), Inc., a subsidiary of the Issuer