Summary
Latest filing:
Lisa Feng files SEC Form 4 reports at ACM Research, Inc. (ACMR). 3 SEC Form 4 filings on record going back to 2025, most recently on 9 March 2026. Most recent open-market trade: sold $9K of ACMR on 9 March 2026. Lifetime open-market sales: $2.86M.
Recent Transactions
12Every recent SEC Form 4 transaction Lisa Feng has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Lisa Feng go back to 2025: 3 primary Form 4 filings, an average of 1.5 per year. 14 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Lisa Feng files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- David H. Wang - $28.98M of ACMR open-market activity in the last 12 months
- Mark McKechnie - $8.76M of ACMR open-market activity in the last 12 months
- Fuping Chen - $3.98M of ACMR open-market activity in the last 12 months
- Tracy Liu - $2.85M of ACMR open-market activity in the last 12 months
- Sotheara Cheav - $1.59M of ACMR open-market activity in the last 12 months
- Haiping Dun - $954K of ACMR open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Lisa Feng?
Lisa Feng is a corporate insider of ACM Research, Inc. (ACMR). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Lisa Feng last file a Form 4?
The most recent primary Form 4 on record is dated 9 March 2026, one of 3 filings going back to 2025.
Has Lisa Feng been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($2.86M) across all tracked filings.
Where can I see all of Lisa Feng's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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