| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Acm Research, Inc. (ACMR) has 9 insiders with recent SEC Form 4 filings, including 0 buys and 15 sells. ACMR is classified in the Semiconductors & Semiconductor Equipment industry within the Information Technology sector.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| Other | 253.2K | $21.35M | - | |
| Other | 103.0K | $8.69M | - | |
| Other | 65.0K | $5.48M | - | |
| Dir | 55.0K | $4.64M | - | |
| Other | 20.0K | $1.69M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 17, 2025 | Liu Tracy67 | Director | Sale+OE | 15,000 | $33.00 | $495,000.00 | -11.9% | +10.0% | - | |
| Sep 4, 2025 | Wang David H50 | See Remarks | Sale+OE | 130,000 | $26.61 | $3,459,786.94 | -6.0% | +25.8% | - | |
| Aug 25, 2025 | Wang Jian45 | See Remarks | Sale+OE | 60,000 | $31.00 | $1,860,000.00 | -10.6% | +11.1% | - | |
| Aug 22, 2025 | Cheav Sotheara65 | See Remarks | Sale+OE | 11,152 | $30.00 | $334,560.00 | -10.0% | -2.8% | - | |
| Jul 15, 2025 | Liu Tracy67 | Director | Sale+OE | 15,000 | $30.00 | $450,000.00 | -11.9% | +31.1% | +249.6% | |
| Jul 7, 2025 | Feng Lisa | See Remarks | Sale+OE | 15,000 | $28.00 | $420,000.00 | -23.1% | +49.3% | +249.4% | |
| Jun 24, 2025 | Feng Lisa | See Remarks | Sale+OE | 15,000 | $26.00 | $390,000.00 | -23.1% | +40.1% | +288.2% | |
| May 22, 2025 | Wang David H50 | See Remarks | Sale+OE | 130,000 | $23.15 | $3,009,803.52 | -6.1% | +11.6% | +225.4% | |
| May 14, 2025 | McKechnie Mark60 | See Remarks | Sale+OE | 15,000 | $25.22 | $378,300.00 | -94.3% | -0.9% | +151.3% | |
| Mar 17, 2025 | Hu Chenming58 | Director | Sell | 163,308 | $30.00 | $4,899,240.00 | -62.0% | -15.2% | +57.9% |