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ACMR Sale Disclosure
Dun Haiping · SEC Form 4 · Filed Aug 20, 2026
Sale
Calculated transaction value
$276.45K
Dun Haiping Director
ACMR
ACM Research
ACMR
Transaction date
Aug 18, 2026
Public filing date
Aug 20, 2026
Filing lag
Filed 2 days later
ACMR daily price context
Close on/before transaction
$84.37
Aug 18, 2026
First close after public filing
$79.41
Aug 21, 2026
30-day return after filing
-8.36%
Through Sep 21, 2026
Source details
- Reported owner
- Not disclosed
- Source asset code
- Security
- Security
- Class A Common Stock
- Quantity / price
- 3,400 shares @ $81.31
- SEC ownership
- Direct
- Transaction code
- S
- Form
- 4
- Filing identifier
- 0001140361-26-033892
Filing cohort
Transactions in this filing
Showing 5 of 5
Trades
5
Issuers
1
Estimated value
$433.67K
Buys / sales
0 / 3
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Acm Research, Inc. ACMR | Sale | Aug 18, 2026 | $96.35K |
| Acm Research, Inc. ACMR | Exercise | Aug 18, 2026 | $28K |
| Acm Research, Inc. ACMR Current | Sale | Aug 18, 2026 | $276.45K |
| Acm Research, Inc. ACMR | Sale | Aug 18, 2026 | $32.87K |
| Acm Research, Inc. ACMR | Exercise | Aug 18, 2026 | $0 |