Over the past year there were no insider purchases at ACM Research, Inc.. Eight insiders sold roughly $51.2 million instead.
Keep in mind most insider selling is routine — stock-based pay has to be converted to cash at some point.
Quarter by quarter: 7 quarters in a row of net selling by insiders. Insiders bought in 0 of the last 7 full quarters.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | Wang David H | Officer | Sell | 4,807 | $76.73 | $369K | SEC |
| Sep 10, 2026 | Wang David H | Officer | Sell | 1,100 | $77.59 | $85K | SEC |
| Sep 10, 2026 | Wang David H | Officer | Sell | 11,666 | $75.58 | $882K | SEC |
| Sep 10, 2026 | Wang David H | Officer | Sell | 18,934 | $74.67 | $1.4M | SEC |
| Sep 10, 2026 | Wang David H | Officer | Sell | 33,493 | $73.80 | $2.5M | SEC |
| Sep 10, 2026 | Wang David H | Officer | Sell | 1,500 | $78.57 | $118K | SEC |
| Sep 10, 2026 | Wang David H | Officer | Sell | 12,323 | $78.08 | $962K | SEC |
| Sep 10, 2026 | Wang David H | Officer | Sell | 51,374 | $77.15 | $4.0M | SEC |
| Sep 10, 2026 | Wang David H | Officer | Sell | 4,803 | $75.99 | $365K | SEC |
| Aug 21, 2026 | McKechnie Mark | Officer | Sell | 11,209 | $77.89 | $873K | SEC |
| Aug 21, 2026 | McKechnie Mark | Officer | Sell | 30,365 | $77.45 | $2.4M | SEC |
| Aug 21, 2026 | McKechnie Mark | Officer | Sell | 13,625 | $76.34 | $1.0M | SEC |
| Aug 20, 2026 | Dun Haiping | Director | Sell | 3,400 | $81.31 | $276K | SEC |
| Aug 20, 2026 | Dun Haiping | Director | Sell | 1,200 | $80.29 | $96K | SEC |
| Aug 20, 2026 | Dun Haiping | Director | Sell | 400 | $82.17 | $33K | SEC |
In the last 12 months ACM Research, Inc. insiders made open-market purchases worth about $0 and sales worth about $51.2 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in ACMR was filed on 2026-09-10.
No congressional trades in ACMR were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).