// company-profile
ACM Research, Inc.
ACMR// activity-summary
Recent insider activity is bullish. Over the last 30 days, 8 insiders purchased shares (net $360K). Buying was led by Cheav Sotheara.
// 90-day insight
Over the last 90 days, ACM Research, Inc. insiders bought $534K across 12 transactions with no open-market sales.
- Most active insider: Wang David H with 15 transactions totaling $8.9M.
- Largest single sale: $2.9M by Wang David H on Jun 3, 2026.
- 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of ACM Research, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 5, 2026 | Cheav Sotheara | ACMR | Sale10b5 | 400 | $84.01 | $34K |
| Jun 5, 2026 | Cheav Sotheara | ACMR | Option Exercise | 5,399 | $13.89 | $75K |
| Jun 5, 2026 | Cheav Sotheara | ACMR | Sale10b5 | 1,647 | $85.41 | $141K |
| Jun 5, 2026 | Cheav Sotheara | ACMR | Sale10b5 | 968 | $82.61 | $80K |
| Jun 5, 2026 | Cheav Sotheara | ACMR | Sale10b5 | 2,384 | $81.73 | $195K |
45 more transactions hidden
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