McKechnie Mark's Form 4 filing
ACM Research, Inc. (ACMR) · filed Aug 21, 2026
- Accession no.
- 0001140361-26-034070
- Filed
- Aug 21, 2026, 9:30 PM ET
- Trade date
- Aug 20, 2026
- Filing delay
- 1 day
- Rule 10b5-1 plan
- Checked
This filing lists 5 non-derivative transactions and 2 derivative transactions. Open-market sales total $4.26M. It was filed 1 day 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 |
|---|---|
| McKechnie MarkCIK 0001775007 | 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 |
|---|---|---|---|---|---|---|---|---|
| Aug 20, 2026 | Class A Common Stock | MOption exerciseAcquired | +30,199 | $19.49 | +$588,578.51 | 31,099 | Direct | |
| Aug 20, 2026 | Class A Common Stock | MOption exerciseAcquired | +25,000 | $13.89 | +$347,250 | 56,099 | Direct | |
| Aug 20, 2026 | Class A Common Stock | SSaleDisposed | −13,625 | $76.34 | −$1,040,132.5 | 42,474 | Direct | |
| Aug 20, 2026 | Class A Common Stock | SSaleDisposed | −30,365 | $77.45 | −$2,351,769.25 | 12,109 | Direct | |
| Aug 20, 2026 | Class A Common Stock | SSaleDisposed | −11,209 | $77.89 | −$873,069.01 | 900 | 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 |
|---|---|---|---|---|---|---|---|---|
| Aug 20, 2026 | Class A Common Stock | MOption exerciseDisposed | −30,199 | $0.00 | $0 | 31,250 | Direct | |
| Aug 20, 2026 | Class A Common Stock | MOption exerciseDisposed | −25,000 | $0.00 | $0 | 215,000 | 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.