Chen Fuping's Form 4 filing
ACM Research, Inc. (ACMR) · filed Dec 4, 2025
- Accession no.
- 0001140361-25-044360
- Filed
- Dec 4, 2025
- Trade date
- Dec 2-3, 2025
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 5 non-derivative transactions and 2 derivative transactions. Open-market sales total $3.98M. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Chen FupingCIK 0001729184 | Officer (See remarks) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Dec 2, 2025 | Class A Common Stock | MOption exerciseAcquired | +100,000 | $1.77 | +$177,000 | 100,000 | Direct | |
| Dec 2, 2025 | Class A Common Stock | SSaleDisposed | −100,000 | $33.20 | −$3,320,000 | 0 | Direct | |
| Dec 3, 2025 | Class A Common Stock | MOption exerciseAcquired | +20,000 | $1.77 | +$35,400 | 20,000 | Direct | |
| Dec 3, 2025 | Class A Common Stock | SSaleDisposed | −19,700 | $33.05 | −$651,085 | 300 | Direct | |
| Dec 3, 2025 | Class A Common Stock | SSaleDisposed | −300 | $33.57 | −$10,071 | 0 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Dec 2, 2025 | Class A Common Stock | MOption exerciseDisposed | −100,000 | $0.00 | $0 | 41,165 | Direct | |
| Dec 3, 2025 | Class A Common Stock | MOption exerciseDisposed | −20,000 | $0.00 | $0 | 21,165 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.