| 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 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 5, 2026 | Cheav Sotheara65 | See Remarks | Sale+OE | 18,750 | $84.58 | $1,585,923.42 | -2.5% | - | - | |
| Mar 12, 2026 | McKechnie Mark60 | See Remarks | Sale+OE | 98,551 | $45.58 | $4,491,951.58 | -53.7% | +76.6% | - | |
| Mar 11, 2026 | Liu Tracy67 | Director | Sale+OE | 60,000 | $47.51 | $2,850,781.80 | -11.6% | +69.9% | - | |
| Mar 9, 2026 | Dun Haiping51 | Director | Sale+OE | 5,000 | $43.47 | $217,363.00 | -84.7% | +63.4% | - | |
| Dec 8, 2025 | McKechnie Mark60 | See Remarks | Sale+OE | 31,250 | $34.93 | $1,091,506.96 | -89.4% | +27.8% | - | |
| Dec 4, 2025 | Wang David H50 | See Remarks | Sale+OE | 130,000 | $33.55 | $4,361,476.70 | -3.8% | +49.7% | - | |
| Dec 3, 2025 | Chen Fuping46 | See Remarks | Sale+OE | 120,000 | $33.18 | $3,981,156.00 | -99.8% | +52.0% | - | |
| Nov 13, 2025 | Feng Lisa | See Remarks | Sale+OE | 30,000 | $33.27 | $997,950.00 | -23.1% | +116.5% | - | |
| Sep 18, 2025 | Wang Jian45 | See Remarks | Sale+OE | 30,000 | $35.00 | $1,050,000.00 | -10.6% | +3.5% | - | |
| Sep 18, 2025 | Cheav Sotheara65 | See Remarks | Sale+OE | 10,000 | $35.00 | $350,000.00 | -9.1% | +3.5% | - |