Quick Takeaways
- Haiping Dun has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $46,508,345.
- Recent insider filing activity is available below.
Insider Trading & Ownership of Haiping Dun
- Location
- Fremont, CA
- Summary
- The estimated net worth of Haiping Dun is at least $46,508,345 dollars as of 11 Mar 2026. Haiping Dun is the Director of ACM Research, Inc. and owns shares of ACM Research, Inc. (ACMR) stock worth about $46.51M.
- Signature
- /s/ Mark McKechnie, Attorney-in-Fact for Haiping Dun
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow Haiping Dun and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: ACM Research, Inc. ($46,508,345).
- Past-year value change for that position: -$217,363.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Haiping Dun
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| ACMR | ACM Research, Inc. | Director | $46,508,345 | -$217,363 | -0.47% | 09 Mar 2026 |
Insider Transactions Reported by Haiping Dun:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.